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Computer Doesn't Turn on, Fans and Some Lights Turn on Automatically

Question: Computer Doesn't Turn on, Fans and Some Lights Turn on Automatically

I have a bit of a strange issue with my computer. Forgive me if I'm a little too descriptive, but I'm not sure which details are relevant and which are not for such a problem. First, the specs:

Model: eMachines T2984
Operating System: Windows XP Service Pack 2
Processor: Intel Celeron D Processor 340, 2.93 GHZ, 256K L2 Cache, 533 MHZ FSB
Power Supply Unit: Bestec Model: ATX-250-12E REV: P7
Motherboard: I can't tell, but it appears to be an Intel motherboard by the number of Intel labels on it
RAM: 512 MB DDR SD originally, added 1 GB a couple of months ago
Let me know if you need anything else...

Yesterday, I got home from shopping around 1PM, and I tried to start the computer. I pushed the power button, and nothing happened. I checked all of the cords, and they were all plugged in. Not knowing what else to do, I opened up the case to see if there was something obviously wrong. The only thing that I noticed (other than a bunch of dust) was that the power supply unit was still hot. I shut the computer down about 5 hours earlier after about 20 minutes of use, so it seemed strange that the power supply was still hot. I unplugged the computer just in case there was some sort of fire hazard.

At this point, I called a friend who suggested that the problem might be with the motherboard or the power supply unit.

A few hours later, I plugged it back in to try to get it to work. As soon as I plugged it in, the entire unit suddenly started "running" by itself . I had not pushed the power button yet. All of the fans turned on, and the light on the front that turns on if the computer is processing something turned on, but it was not as if the computer was processing something. If the computer is processing something, it flickers and clicks a little. This was just a solid light with no "clicking." I pushed the power button, but it didn't turn blue as it usually does if it turns on. In fact, nothing changed. After about a minute and a half, the entire unit shut down again, and I was not able to get it to do the same thing again. When I tried unplugging it and plugging it in again, I could hear the unit try to start up again for a second, but it would fail again.

Last night, I opened it up to clean out the dust (I figured that could be an issue with overheating despite the fans). I basically took it apart and put it back together again to no avail. I did find one loose wire in the power supply unit. When I plugged it in, it would turn on (lights and fans, but not the computer itself) as it did earlier in the day, but nothing new happened. I noticed that a red light would go on when the computer was "running," but it would go off as soon as everything else turned off. A similar green light would stay on when the computer was plugged in no matter what I did. The power supply unit was no longer hot. The entire unit except for the green light would shut down after about a minute.

This morning, I tried to get it to work again, and it was doing the same thing as it was last night.

I bought it about 3 years ago when it was being phased out, and I was planning on getting a new computer soon anyway, so it's not a big deal if it's too serious. I'd probably try to fix it if I could do so for under $100. Otherwise, I'll probably get a new one. I didn't really have anything important that I hadn't backed up on there, but I'd like to save the hard drive if I could. I'm a novice when it comes to hardware, so I'd be a little nervous about replacing major components (I've installed RAM and that's about it until last night).

So, the three big questions:

1. What's wrong?
2. How can I fix it?
3. Is it worth fixing?

Relevance 100%
Preferred Solution: Computer Doesn't Turn on, Fans and Some Lights Turn on Automatically

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Answer: Computer Doesn't Turn on, Fans and Some Lights Turn on Automatically

I would suspect that the Power Supply Unit (PSU) is going south. If you have a spare one laying around, install it and see if the problem goes away.
You can buy a new,better PSU from Newegg for about $40.00. I have used a Thermaltake 430 watt in one of my machines for some time now and it works well.
You will have to check the size of your PSU to be sure a new one will fit into the eMachine.
Here's the page with that PSU on it. It's the last one on the list.
http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=2010320058+50001379&name=Thermaltake

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My computer recently refused to turn on. It had been working perfectly the evening before. I could not smell anything burning or hear anything irregular.

On the advice of Corsair, I bridged a green and black wire on the PSU's 24-pin connector to test whether it was at fault. Upon turning the PSU on with the two wires bridged, the fan began to rotate. So either this is not to blame, or the PSU only partially functions.

I cannot figure out what component is at fault, and replacing parts would be quite an expensive guessing game. The Corsair PSU has a 5 year warranty; however, they require me to mail it to California. Being in Australia, this is quite inconvenient and I would rather fork out for a new one. My motherboard, I assume, is out of warranty.

My specifications are as follows:
Gigabyte P35-DS3P Motherboard
Corsair HX-620 PSU
4xCorsair DDR2 6400C4 (4Gb)
Gigabyte 8800GTS 512Mb (G92)
Antec P182 Tower
Intel E6750 Core2Duo 2.66Ghz
Asus 1814BL 18xDVD+-RW IDE
Western Digital 320G SATAII 7200 rpm HDD(Primary)
Seagate 250Gb SATAII 7200 rpm HDD(Secondary)

I purchased/built it on the 19th of December in 2007

Thank you for any assistance.
 

Answer:Computer will not turn on - no fans, lights or anything in between.

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I can't turn my computer on. The fans and lights turn on for a second and then turn off. a few seconds later they'll turn back on and then turn back off. I've had this computer for 4+ months now, i built it myself. it recently started doing this but i'd just turn off the PSU (Power Supply Unit) and turn it back on and it woould fix it. now it doesnt fix it anymore. i've re-slotted the RAM (Random Access Memory) and pushed it in firmly, but that hasn't done anything. i've tried different power outlets and pushed everything into the MOBO (Motherboard), i havent messed around with CPU (Processor) because that's just a pain in the a**... i was wondering if there was anything else i could do before having to take it into a local repair shop, lol.as for my computer specsCPU (Processor): Fx-6300 AMDGPU: R9-270x AMDRAM (Random Access Memory): 8GB Ballistix sportMOBO (Motherboard): ASRock 970 Extreme3 R2.0PSU (Power Supply Unit): Corsair X500 w 80+Case: Rosewill GALAXYthanks 

Answer:Fans turn on, lights blink and then turn off/on repeatedly.

You can try a new  RAM stick.What you describe can be: Anything overloads the PSU, or a failing PSU Bad memory in the low region. BIOS  can't run without it. Bad CPU, or heat sink not in placeDisconnect the HDD and the DVD drive. (Power off, of course.)Power on. Does it  show the  BIOS?

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I can't turn my computer on. The fans and lights turn on for a second and then turn off. a few seconds later they'll turn back on and then turn back off. I've had this computer for 4+ months now, i built it myself. it recently started doing this but i'd just turn off the PSU (Power Supply Unit) and turn it back on and it woould fix it. now it doesnt fix it anymore. i've re-slotted the RAM (Random Access Memory) and pushed it in firmly, but that hasn't done anything. i've tried different power outlets and pushed everything into the MOBO (Motherboard), i havent messed around with CPU (Processor) because that's just a pain in the a**... i was wondering if there was anything else i could do before having to take it into a local repair shop, lol.

as for my computer specs

CPU (Processor): Fx-6300 AMD
GPU: R9-270x AMD
RAM (Random Access Memory): 8GB Ballistix sport
MOBO (Motherboard): ASRock 970 Extreme3 R2.0
PSU (Power Supply Unit): Corsair X500 w 80+
Case: Rosewill GALAXY

thanks
 

Answer:Fans turn on, lights blink and then turn off/on repeatedly.

First, I would unplug everything that isn't necessary. Everything external except for the keyboard and monitor. Internally, just leave the CPU, RAM and video card installed. See if it turns on. If not, you might try and test the power button. Disconnect the power button from the mobo. If the pin headers allow for it, use the reset button as the power button. If not, you can use a flat head screwdriver to power on the computer (cross the two pins for the power button with the blade of the screwdriver). If you do this, just be very careful. Touch only the power button pins and nothing else! You could easily damage components by touching the screwdriver to the wrong thing.

Some motherboards have a power button right on the board that you can press to power on the computer. I looked at a pic of your board and didn't notice one.

If that doesn't do it, plug the power button back in. You might try and play around with the RAM. I don't know if you have 2 or 4 sticks of RAM, but try and boot the computer with only one stick of RAM at a time. If there's a bad stick, you'll find it through this process of elimination.

If none of the above works, then it might be a bad PSU.
 

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Please Help me with this,
One day I get home, turn on my computer, it comes on... checking email...alls fine, then my computer just turns off... click the on button...loading... screen comes up...bam....off again! Not even any error messages! I continued like this for about 10-15 minutes untill now I only get it up for about .7 seconds and nothing appears on the screen.

Now,
1. I have the power supply, fine.
2. I have checked all peripherals, fine.
3. I have checked the video card and RAM on different computers, fine.
4. I have continually cried, fin... never mind...
5. I checked the Hard drives, mointor, all other drives, FINE!

My system specs are as follows:
| AMD Athlon 64 3200+ |)
| Gigabyte GA K8NS |)
| Apollo Geforce FX5500 256MB DDR |)
| 3 x Corsair 256GB DDRAM |)
| Western Digital 250GB ATA IDE HDD |)

Thanks in forward for any help or ideas, but one thing that I could use is howto test to see if you motherboard is damage.

Thanks even more!
 

Answer:PLEASE HELP, computer won't turn on, fans come on and lights blink

Have you checked that your fans are spinning up? Is the heatsink sitting flush with the CPU? Have you made any changes to your hardware on the mobo?
 

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I started lagging while playing player unknown battlegrounds. So i closed the game and restarted the computer. I then noticed the entire system was lagging. System sounds and everything. Took 5min to open taskmanager.
I then restarted again and after that it would just turn off 1min after i start it. Only thing that comes on is fans and lights etc.
I changed to different ram slots just to try. And it starts and does not turn off now. But the screens dont come on, and everything connected to USB dont come on. Ant idea What the issue can be?
i7 5820k Corsair rm750x 750w Crucial ddr4 2133mhz 16gb MSI geforce GTX 980 MSI x99a raider Windows 10

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I have a Toshiba Satellite (about 2 years old) and for the life of me, I can't figure out what' s going on.

Here's what I do know:

I used a multimeter to test the voltage of the power port on the connector that plugs into the motherboard. I'm getting 19volts which is what it's supposed to be at.

I have replaced the bios battery - nothing

I have held down the power for 60 seconds with it unplugged - nothing

I've tried running on a/c power only - nothing

Possibly the most confusing thing - I was fiddling with the network adapter (the internal pci one - not the usb kind) because after tearing it apart and putting it back together so many times I was trying literally everything - I switched out the network card. (I realize what little sense this makes) but it turned on. For only about 15-20 seconds but it turned on. 3 times. Then died before it ever fully loaded windows.

I assume there is something on the motherboard around the network card area that I touched that made this happen. But I can't for the life of me figure out what. It has been dead as a doornail for months. And something happened when I touched and swapped out the network card.

*total confusion*

Answer:Laptop won't turn on, no lights, no fans.

Does a charging light illuminate when you plug in the power brick to show it's providing power to charge the battery?I
If you wiggle the connector from the power brick to the laptop, does the charging light flicker?

Have you attempted to see if it boots up without the wireless card?

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Hi,My original problem was my computer randomly shutting down without any error messages or anything like that, as well as not being able to turn it back on until after a while, seems like the longer I leave it turned off, the more time I get to leave it turned on before automatically turning off. Anyways so I decided to open up my computer and take out the heatsink and everything else out, and clean the dust off. After fully dusting off the computer I plugged everything back in and now the fans, and lights turn on, and the power supply fan slowly spins before finally spinning after a while. I get no display or any usb mouse light. I tried taking out the CMOS battery and then putting it back in, Also I get no beep when I take out the ram. I tried taking out the video card and plugging VGA unto motherboard. Also the hardrive, it spins so dont think its a hard drive issue. When I took out the cpu it broke the thermal paste off, so I was wondering if that has to do with anything?Also I am thinking if it might be the power supply and me needing more then 500 watts. My Computer Specs:Assus M3N78-VMOCZ StealthXStream 500 watts P/SOCZ 2x2gb DDR2 RamAMD Phenom x4 9600Evga gtx 460 768 mbLg DVD DriveWestern Digital 1tb Black EditionNZXT Guardian 921 casePlease Help!Thanks.

Answer:No Display-Fans and lights turn on

A quick read of your post indicates that you did NOT damage the power supply. You did something when you removed the heat sink. Check your work, but before you do anything, get some thermal paste. It does not cost much and is required when you take off the heat sink.

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Hi, I would firstly like to apologize for not being able to update my user CP or tell you what my CPU/Mobo is. I can't get my computer to turn on and can't access the info.

This happened while I was trying to reset everything on my computer (because there was a problem with my NIC). I unplugged everything and replugged them into their respective places, and now I can't seem to turn my computer on. Everything was working fine (except the NIC) prior to my resetting. Now the problem is when I turn on the power, there would be a small delay before it would turn on, and when it does turn on, the lights in front of the computer (for the on switch) flash, the flashing intervals are synchronized with the rate the CPU fan turns on and off. The case fan is running constantly however and it is blowing out cool air. I have done some searching on the forums, and I have heard that it was because I unplugged the 12-20 wire that connects the power button (in the front) to the CPU. I unplugged this wire and the fans still turn on and off, except the front LED's can't flash. If anyone can help me, that would be most appreciated.
 

Answer:Lights flash, fans turn on and off, comp remains off.

You gotta do some more diagnostics.
But before I'll start listing them, I have one question:
Before you've removed components from your computer did you un-plug it from AC outlet? Cause if you didn't you may've damaged motherboard or any other component for that matter. I know it sounds silly but I'm just making sure.
Anyway, do as follows:
Unplug the power. Open the case and re-sit you memory modules and if you have to re-sit your CPU chip. Re-sit all your add-on cards (sound, video etc.) Make sure you re-install the CPU heatsink properly. Make sure that all cards and modules are snug and properly sitted in the motherboard.
Note! Dont' ever operate your CPU without properly installed heatsink, ever!
Plug it back in and the try to boot. If it's still no go:
Unplug it. Pull all the cards out except for the video card. Disconnect all your drives: hard drives, cd/dvd-rom/rw drives, floppy drive(s) etc. Actually disconnect everything from you motherboard except for: CPU, 1 memory module and video card (and of course power supply - make sure the 12V+ cpu plug is in the motherboard!). Plug in and power on. See what happens. If it's still no go move the memory module to a different slot; power on; still no go - pull the video card out: plug-in power on; still no go:
- Your power supply, motherboard, memory module or CPU has gone bad - you gotta swap them out with differnt component to test if this fixes the problem; star... Read more

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Hi!
I have this issue that when I turn on my computer, the power LED does not turn on but you can hear the fans working properly. I don't the issue and I'm not much of an expert with computers. Please help me solve this issue because I'm completely clueless.
 

Answer:Try to turn on my computer but only the fans work and the power led does not turn on

How old is the computer, what was the last change you made to the computer and when you last shut it down did it shut down correctly?
 

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Every time i plug my computer to the wall, the Fans automatically turns on. the PC itself is off but the aux fan and the fan on the MB runs? than when i turn it on about 5 to 10 mins it shuts downs? any ideas?ThanksAscer Aspire desktopcore duo 2Gig ram

Answer:Fans automatically turn on ?

To the best of my knowledge, this is a built in feature of computers to prevent themselves from overheating. In hot weather, even if the computer is off, it sometimes runs the fan for safety purposes. It's nothing to worry about.

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Hi. I just built a new computer, and it has 4 case fans, with lights, and 2 lighted fans on the power supply. This is in my room, and awfully bright if I leave on. I've looked into fan speed controllers, but was wondering, is there a way to have them automatically turn off when I put my computer into sleep mode? I have a clear acryllic case, so thats my biggest problem right there. Thanks.
 

Answer:Can I have fans turn off automatically in sleep

If by sleep you mean standby, then you should be able to do that. In the bios, you should be able to select the suspend mode. Chose s3 rather than s1. s1 leaves the fans on, s3 turns them off.
 

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I have a Toshiba P50-A that I took apart to dust off the cooler and replace the thermal paste on. Now there's no lights turning on on it, even when plugged in, and it does nothing when the power button is pressed.Things I've tried:1. Reseating RAM2. Taking out battery and power and holding down power button for 2 minutes, then reconnecting power and trying to boot.Any ideas?

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Power LED Lights in my laptop are not getting turned on when I connect my Laptop to an power outlet I have tried thesea) Replaced the AC Power adapter b) Removing the batter and connected the Power adapter to an poweroutletc) Did a hard reset by pressing the power button for more than 60 seconds But in none of these scenarios my power led lights doesn't turn on. What might be the issue here?

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I have a Toshiba P50-A that I took apart to dust off the cooler and replace the thermal paste on. Now there's no lights turning on on it, even when plugged in, and it does nothing when the power button is pressed.
Things I've tried:

1. Reseating RAM
2. Taking out battery and power and holding down power button for 2 minutes, then reconnecting power and trying to boot.
Any ideas?
 

Answer:No Lights on Laptop and Doesn't Turn On

Are you sure when you were working on the machine that you didn't unplug any internal cabling inadvertently? It's definitely worth re-opening the case and taking a look.
 

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Hi, I'm trying to fix a friend's T430s and the issue is that it doesn't turn on. With the battery plugged in, nothing happens. No lights and no sounds. When I plug the adapter in the buttons along the top of the keyboard (volume mute,power, etc.) and then they turn off and nothing. The motherboard was replaced, but the issue remains.  Any tips or trick are much appreciated Thanks

Answer:T430s Doesn't Turn on - Lights Flash Once

Hi Cimanim,
 
Welcome to Lenovo Community!
 
As per the query we understood that you are facing issue with No POST on your ThinkPad T430s.
 
Have you checked with performing power drain by removing the power adapter and battery from the system, hold the power button for 15 to 20 seconds do this process for 2 to 3 times and connect only power adapter and check.
 
If you find the issue still persists, then I suggest you to contacts Lenovo technical support if the system is under warranty or approach any nearby service center.
 
Please click here to contact Lenovo customer support for your region to get the detail of service centers.
 
Hope this helps.
 
Best regards,
Hemanth Kumar





Did someone help you today? Press the star on the left to thank them with a Kudo!If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.Follow @LenovoForums on Twitter!

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I just put together my first computer 6 months ago. It abruply shutdow in the middle of writing a paper for school. I couldn't turn it back on right away. after trying a few times, it turned on. All the fans are working even the fan on the power supply, the motherboards lights are on. My graphic card in on the motherboard. I think it might be my power supply because when I first put it together I didn't plug in the smaller power connection to the motherboard and the same thing is happening, black screen. It's like my computer isn't giving my monitor any feed. I will have more info when I get home. I can't get in to bios or safe mode.
 

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One night, a couple months ago, I was trying to play a game with a friend when my computer just turned off. It wouldn't turn back on. The next day I was able to get it to come back on and it had some boot message, but I didn't have time to read it before it booted. It was on but wouldn't charge. I turned it off to conserve battery a couple more times before it was permanently dead.I have tried hard reset, but I get absolutely no reaction from my computer.I have replace the internal DC power adapter, but the computer stills doesn't respond (also retried hard reset). So the motherboard should be getting power, but my computer doesn't turn on, charge, or blink. It worked initially after dying, so why doesn't it work now?What kind of options do I have? I would love to send it in to HP to repair (as long as it doesn't cost more than $400), but I have had any luck contacting HP support yet.My computer is out of warranty.

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Hello guysI am beginner on computers and recently my computer obtained a problem and i think its on hardware the problem.When i open pc it is open for 4-5 seconds and its turn off and few seconds later it's turn on automatically without me pressing the power button, also it;s doesn't send signal to my screen.Can anyone please help me?  Sorry for my english, its not my native language.

Answer:My computer turn off and turn on automatically

Could you please share the make/model number of the computer? Also if this computer is new and under warranty have you considered returning it under warranty replacement?

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***Warning: I'm very, very tech unsavvy*** Example: I put a large game disc in the player yesterday, it recognized there was a cd in there, for instance, after much work and time on behalf of the computer, but although it's a game with hundreds of files and hundreds of megabytes on it, it registered one media track 40-something bytes only. Nothing else. That's the kind of thing I get if I'm lucky enough to have it recognize anything there at all, lately. Mostly, it doesn't recognize them at all anymore. As a matter of fact, part of its erratic behavior is that half the time, if there's a cd or dvd in the drive when the computer is turned on, it gets stuck on startup before the user account screen pops up and won't go anywhere unless I open the tray up. It's driving me crazy. Do I have a bad drive or is the drive okay and there's something wrong with some software somewhere? What say you, to the noob?

Answer:[SOLVED] CD/DVD drive, lights turn on, makes noise, tries... but doesn't recognize!

Hi and welcome to TSF try the info here How to troubleshoot common problems that occur when a Windows XP-based computer cannot read a CD or a DVD

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I saw that there were others with this issue. I already tried things like resetting the ram, taking out my battery. Even with my laptop plugged in, not lights are showing up and the power button isnt starting anything. I tried to listen and hear if anything was happening, but no luck. I just to get help if there is anything I can do to trouble shoot or just figure out what the issue is so I can get it fixed . I was running Windows 10 on there. 

Answer:Dell Inspiron 15R won't turn on ! No lights will turn on .

Hi PARTH511722,
What is the exact system model?
Are you using an original Dell OEM Adapter? When you plug in the adapter to the system, does the adapter stay firm or does it fall off easily? Is the adapter frayed? Is there any damage on the system? Could you test with another power adapter if possible? Could you try powering on with another battery?
Remove the memory and disconnect the HDD and try powering on the system with adapter only / battery only and check.
Does the adapter led stay on and stable or does it go off when connected to the system?
If the adapter led is stable when connected to the system and there are no signs of power, then the motherboard is suspected faulty.
Also, please click my DELL-username and write me a private conversation with the service tag and your Name for case records.
Let us know if you have any other queries.

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I use to have my HP6900 series printer hooked up with a USB cable from the computer to the printer. The printer could be off and if sent a print command it would turn on, and print. I recently hooked it up with a network cable off the modem/router so that I could also print from some laptops. Well, it no longer wakes up and prints. I have to turn the printer on, and then send the print job. I have looked in the printer setup and see nothing that would correct this.

Any ideas?

Thanks

Answer:HP printer doesn't turn on automatically

Model number of Printer? Such as, HP Deskjet 6940.

John

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Hi guys, this is my very first forum post ever in my life and I hope I get super help.So there I was working on my computer one day. I was downloading a youtube video with a program that has scheduled shutdown computer option upon download completion. I turned that on and turned off my monitor. After about 1-2 mins I noticed the power and HDD indicator lights in front of the CPU casing is turned off so I thought for some reason my pc probably turned off. I tried turning it on by pressing the power button and at the same time turned my monitor on. It turned on with a light-brown colored background so I quickly hit restart but then it won't turn on. I plugged by USB in hoping it would try to boot from the USB (my bios settings primary boot is set to removable devices). Then I pressed the power button again but THIS TIME I noticed that a very bad wire-burning type smell is coming out so I instantly turned EVERYTHING off. Later I opened my CPU casing and tried smelling the devices and found that probably the smell is coming from my second (and newer) hard disk that is about 10 months old. So, finding no hope and ideas I threw myself to computerhope.com's forum from my school laptop...please anyone help me out ASAP!Note that when I still try to turn my the pc on the power supply fan, the ethernet lights and even the DVD-rom drive works; so I am totally confused!My pc is  Intel Core2duo, 2GB ram/memory, 256 internal video memory, primary hard-disk=160gb and secondary... Read more

Answer:CPU/Power Supply fans work but indicator light in front doesn't turn on.

Minimal boot is where I'd start. If motherboard has integrated video use that, disconnect all drives, and just have the motherboard set up with 1 ram stick, and try to boot. If you get it to boot then shut it down and add 1 component and boot up again if no boot then you found the cause if it boots then move to next component to add and repeat. If no boot on minimal boot, then swap single Ram stick with another if you had more than 1 stick. If still no minimal boot swap power supply. If still no minimal boot its something local to motherboard. Unistall CPU and check for damage and reinstall it, apply thermal compound and heatsink and try another boot. If still no boot, I'd buy or use a different motherboard unless you have a POST card to work with and want to troubleshoot deeper.Cooked component smell is not a good thing, if you can localize the smell and find burned traces or parts that would be a help in determining if this can be saved or if you need to start a new build. I have only seen one hard drive smoke before and that was my friend way back when SATA drives first came out and it had a P connection as well as SATA power. He hooked up both and cooked it. On a small warning in the box it warns not to plug power to both. I'd doubt if your drive is one of these drives given that you mentioned that it is 10 months old.

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Good day!

My cousin asked me to troubleshoot the problem of his desktop. He was telling me that it is not turning on. I was caught by surprise when i turned on the PC when suddenly I heard some kind of explosion. It sounds like a blown capacitor or something to that effect. I immediately unplug the power cord from the wall outlet. I checked all the capacitors and looking for any damage and fortunately it's all ok. I smell the PSU to check if there's any short circuit occured and there was no foul odor or something. I removed the PSU from the casing for and opened it for inspection. I found out that the fuse exploded and broke into 2 pieces. I don't bother to repair it but instead I bought a new 700 watts PSU.

After replacing the PSU I turned on the PC but i found out that the CPU fan will spin for half a second and turn off. Led green light is on but no post or beep sound. I did some troubleshooting and these are as follows:

1. I removed the motherboard from the casing and put it on top of the table with cardboard underneath.
2. Clean the RAM stick and tried on other slot.
3. Clean CPU heatsink and fan since it was clogged by dirt and replace thermal paste.
4. Replaced the CMOS battery and move jumper pin 1-2 to 2-3 for about 2 minutes.
5. I turn on the PC without the video card, hardisk and keyboard.

SPECS:
Motherboard: asus h81m-c
CPU: Intel core I7
RAM: 8gb

Btw, prior to the above steps, right after replacing PSU I just clean the RAM and turn it on but ... Read more

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Hi, please help me

I contacted Major Geeks as I was infected with Antimalware Doctor and was instructed by TimW to remove it. After removal I noticed that after shutdown my pc wouldn't turn on when the power button was pressed. After turning the switch on the wall off and then on again, the pc turned on but now a few days later it is not turning on at all. The power button flashes amber when pressed but nothing more. It doesn't start up at all. Please tell me how this can be undone or fixed, thanks
 

Answer:PC doesn't turn on after shutdown. Power button flashes amber and doesn't turn on

Looking at your malware thread, to be sure you were given the all clean, I noticed you mentioned this




If i turn off the electricity socket on the wall and then on again the pc turns on when the power button is pressed.Click to expand...

Is that still the case?
 

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Relevance 88.97%

I recently had to take my computer in to be fixed only to find out my GPU was fried but the guy there was going to way overcharge me to install a new GPU so I decided to do it myself as I have done so before. So I got a new video card, I installed it, I clicked the power button and the cpu fan spins for half a second and then nothing. I called the computer guy and he said when he had it there it was working fine with other video cards and would start up fine. So now I don't want to pay him yet again to try to figure out why it won't even turn on. I've try reseating the memory, reseating the GPU. The lights on the motherboard and the lights for the power inputs to my GPU are on and yet it still won't start. I don't know what to do next. I hope one of you fine people here can help

My specs in case it matters:
CPU: AMD FX-8350
GPU: ASUS STRIX GTX 980 OC
RAM: 12GB
PSU: 750W
 

Answer:Computer won't turn on but motherboard and GPU lights are on

What's the brand name and complete model number and revision number of the motherboard?

What's the brand name and complete model number of the 750W power supply?

--------------------------------------------------------------

Your "computer guy" doesn't sound like he's very reliable.

We have no way of knowing what he did to your computer and why it won't start and load Windows.

Be patient and wait for one of the hardware experts here to reply.

--------------------------------------------------------------
 

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So I don't have my exact spec but I have a custom pc w 2 nvidia crappies cards and a terabyte hd. Please watch this video and let me know what it could be. Noise sounds like it might be from hard drive or dvd drive (which is empty) click here
Thanks!

Answer:Computer wont turn on but initially lights up and

When I click says 'sorry, this video is private' with a sad face!

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Hi! I have a problem - my computer won't turn on and it shows a black screen all the time. It does not show any blinking lights at the front side, nothing. The only things that turns on when I press the power button are DVD RW and cooler. The computer is a little older, but still was functional until recently.Configuration:Zeus motherboard (I can't find the series number)Processor Intel Celeron e3300 2.5 GHzRAM 3x512 DDR2Graphic card Leadtek Winfast px9500gt 1 GB 128bit DDR2Please help!

Answer:Computer won't turn on, no lights, black screen

Do any sound come out of the on board tPC speaker?Do the keyboards lights come on? Can you use caps lock?The mouse? Does it light up? (If it is an optical mouse.)What fans come on?

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Was troubleshooting a computer that won't start

Scenario:
Computer worked perfectly fine, underwent an update, and inexplicably crashed. Trying to turn it on won't so much as hint at a flicker of any light whatsoever on a motherboard, or screen, or even make a sound from a fan, or turn a fan on, etc. Absolutely dead.

Troubleshooting:
Tried a brand new PSU to no avail. Disconnected previous one, and connected new one exactly as the previous one had been connected. Flipped the switch in the back of the new PSU to 'On', and tried the 'On' button on the case. No peripherals were attached whatsoever at any time. No joy.

Under these circumstances, would the problem most likely lie in a tossed-out motherboard, or CPU, and why? I imagine these could be the only two culprits, unless a bad CPU fan could be a candidate? A fun note: this is a refurbished computer (I wonder why those are a bad idea?)

*Added* It was the windows 8.1 update that the crash happened under (but not necessarily caused by), and the computer is a Gateway DX4870 that had 8 installed already. This should be it: Newegg.com - Refurbished: Gateway DX Series DX4870-UB2B (DT.GEEAA.002) Desktop PC Intel Core i3 3240 (3.40GHz) 6GB DDR3 1TB HDD Capacity Windows 8 64-Bit

Thanks for any help!

Answer:computer wont turn on, no lights, no life

what kind of update software or hardware ,and some info on the computers specs

37 more replies
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Power button turns on but computer won't turn on. Black screen only

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Hi! I have a problem - my computer won't turn on and it shows a black screen all the time. It does not show any blinking lights at the front side, nothing. The only things that turns on when I press the power button are DVD RW and cooler. The computer is a little older, but still was functional until recently.Configuration:Zeus motherboard (I can't find the series number)Processor Intel Celeron e3300 2.5 GHzRAM 3x512 DDR2Graphic card Leadtek Winfast px9500gt 1 GB 128bit DDR2Please help!

Answer:Computer won't turn on, no lights, black screen

Do any sound come out of the on board tPC speaker?Do the keyboards lights come on? Can you use caps lock?The mouse? Does it light up? (If it is an optical mouse.)What fans come on?

8 more replies
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I've had this message on screen, alternating with "Installing update 2 of 2.." for well over 6 hours now!

How long can it take? At some point I'm gonna have to bite the bullet - what should I do?

(Windows XP, SP3. I think the Windows update is something to do with the .NET framework?)
 

Answer:"Do not turn off or unplug your computer; it will turn off automatically." (6+ Hrs!)

Re: "Do not turn off or unplug your computer; it will turn off automatically." (6+ Hr

If you have got an XP install disc to do a recovery if it goes bad, i'd just hit the reset button, and boot into safemode straight away [press F8 as it is booting] then schedule a chkdsk and restart.

to schedule chkdsk...



Go to "my computer" and right click on the drive windows is on.

Select "properties" then go to the "tools" tab and click "check now" on the error checking section.

It will tell you that it cant perfrom it and ask you do you want to schedule it for next time...
click "yes" and reboot.Click to expand...


 

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Relevance 87.74%

So I built a budget gaming computer one and a half months ago and everything was working fine until 2 days ago. Initially, the computer ran Civ V and Shogun 2 just fine.

AMD X4 760K
MSI A78M-E35 FM2+
EVGA 896-P3-1264-A3 GeForce GTX 260
Kingston HyperX 8GB 240-Pin DDR3
CORSAIR CX series CX500 500W
Windows 7 Pro x64

But 2 days ago, I noticed while I was playing Civ V, the computer would suddenly reset to the bios screen and restart. This happened when I played any graphically demanding game, but not during normal use.

1 day ago, the computer started resetting itself to the bios screen during regular web browsing (no gaming), and when it was idling.

Today, I took the graphics card out and it booted (but I couldn't tell what was going on, because I don't have integrated graphics). I put the graphics card back in and it didn't turn on. I took the graphics card back out, and the computer still won't turn on. Now when I press the power button, the fans turn on and off, but the computer doesn't boot. No beeping.

My guess here is the power supply went bad. But I'm more worried if the motherboard is fried. Is there a way I can test? I don't have another computer (aside from this linux laptop I am on right now), or any spare PC parts. What can I do?

Thanks
 

Answer:Computer won't boot at all (fans turn on and off)

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My computer just recently crashed while I was playing a DVD. It had been running fine for about 1.5 years, except for the occasional BSoD (kernel inpage error) in the past couple of months after I had been playing Wolfenstein Enemy Territory for extended periods of time. This time, however, it wasn't a kernel inpage error, but something else. I didn't catch it, as it flashed pretty quickly. My computer proceeded to reboot, but then it froze. I turned the computer off, and when I tried turning it back on again, nothing happened. No lights, nothing. BUT the CPU fan and the case fans were still running, and the only way I could get these to stop was to unplug the power.

I'm about to go borrow a stick of ram from a friend to see if that's the problem. Does anyone have any other ideas as to what could be wrong? Thanks in advance.
 

Answer:Computer won't turn on but fans running

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my computer will turn on only the fans are working but nothing else works not even the mouse and keyboard can someone help me my computer is a philips and im running xp

Answer:my computer will turn on only the fans work

Troubleshooting a Dead/Unbootable PC -http://pcsupport.about.com/od/findb...http://www.microsoft.com/windowsxp/...http://www.wikihow.com/Figure-out-W...http://www.ehow.com/how_113600_trou...http://www.sysopt.com/articles/trou...http://www.duxcw.com/faq/mb/deadmb.htmhttp://www.selfgrowth.com/articles/...http://thepcsecurity.com/panda-safe...http://www.geckoandfly.com/2008/11/...http://www.google.com.au/search?hl=...http://www.google.com.au/search?hl=...http://www.google.com.au/#hl=en&q=c...

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Hey guys. I'm just trying to help out a friend. I think I know what the problem is but I just wanted to get a second opinion, and maybe a third and a fourth. I think the problem is the power supply but before I send this poor college student out to buy a new one I just wanted to make sure.

Any way, she has an old Packard Bell running with a Pentium 200MMX . It's an AT power supply. What happened is she turns the machine on and the power light blinks on, the cpu fan spins for about a half sec. and then nothing. No power, no beep codes. So, she brought it over, I plugged my cord into it and the same problem. I checked all connections in the computer and everything looks ok. Then, I disconnected the power supply from the motherboard and then connected it. Plugged it in with the same cord and the machine turned on with no problem. Booted up to Windows and everything. Even let it run and checked out some basic programs to make sure nothing happened. I thought it was just a funny glitch (keep in mind that no one has ever opened this machine since it was purchased) so I packed it up and sent her home with a extra power cord just in case. Of course I got a call and she was having the same problem. So, what's the verdict hardware guru's, power supply or serious problem?

[Edited by bcon76 on 06-04-2001 at 11:25 PM]
 

Answer:computer won't turn on, lights flash, no beep codes

Hi bcon76
It's hard to say what the problem is but I would try a new power supply first. AT power supplies are usually pretty cheap too. BOL
 

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I'm definitely not an expert but I have general knowlege from building a couple systems. My current system is the following (I apologize if some details are left out, I'm currently at work)

OS: Windows XP
Chip: Intel P4
MB: Asus P4P800 (865 PE)
RAM: I forget - 2 sticks of Kingston = 1gb
HD: 2 SATA
Video: Nvidia 5600 AGP (running 2 monitors)
PSU: Generic from Fry's 400w

I was listening to some streaming music and left the room for a couple minutes and came back my computer had shut down. When I got closer I could hear the system trying to boot, the fans would spin but it would shut down every 2-3 seconds. I switched the power off from the PSU.

I bought a replacement 500w PSU from Fry's figuring it went bad. I installed the new PSU but the system would not boot. THe fans would come on and a light on the MB was on but nothing. My monitors weren't receiving a signal either.

I then thought maybe it was the video card and went and bought a Nvidia 6800 AGP but still nothing.

I read online and tried a few other things:
- Removed the onboard battery on the MB and reseting the CMOS using jumpers
- Removed all PCI components including video card and tried booting and then installing only the video card and rebooting.
- Removed one stick of RAM
- Removed hard drives

At this point I think it might be the MB or just another bad power supply. Any other suggestions?

Thanks in advance.
 

Answer:Old Computer: Fans turn on but system won't boot

Remove the CPU heatsink/fan and check for thermal past. Clean of the old paste and apply new
 

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A few months ago i built a system through a popular computer company, ibuypower, and was initially pleased with the performance of my PC. I was then forced to take a few months away from the system due to work, during which it was stored in a safe dry location. Upon returning the system had the issue stated in the title. I have replaced the power supply with a far better one (went from 450w to a 700w) and the same issue peristed with the new power supply, which works with the tester it was shipped with. I've read about it possibly being the Ram, so i have ordered a 16gb ddr3 ram upgrade (2x - 8gb sticks) and they should be here within a week. I also read that it may be the CMOS battery but those are unable to be shipped through the mail so im having trouble tracking those down here in Japan. If somone could help me figure this out i would greatly appreciate it. I've cleaned and tested everything i can and i can't find an issue other than it physically wont function. Also, in case anyone was wondering this thread was written from my laptop, not the PC.

Much Apreciated
 

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Hey all I'm new to this forum but I've built a few computers in the past but have never experienced any problems like this.

Case: Powerspec Cooler master case
Processor: Intel i5 750(quad core)
Motherboard: Gigabyte H55M-UD2H
Powersupply:OCZ 500 watt Mod X Stream-Pro

Here are some pictures of my build and a video of what is going on.

Video: youtube.com/watch?v=UbuFZJQnlds

As you can see the PSU, CPU, and Case fans are turning on and the Motherboard LED lights are blinking and then they quickly turn off. I dont think its a problem with the Power Supply because I have already returned one with the same issue thinking it was defective.

Pictures:

wont let me post pictures =/

Any help is appreciated, thanks for your time!
 

Answer:CPU and PSU fans turn on but then quickly turn off as does everything else

Does your current BIOS version support your CPU?

Your 4 pin power connector looks to be missing.... Top right of the video 8secs in.
 

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Problem description:
I built my computer in January 2008. When it is turned on, there is a blue light on the front panel next to the power button that burns steadily (Case is from Cooler Master).

Most nights I turn my computer off when I go to bed. Sometimes though I don't and leave it running all night. The longest I've ever had it on non-stop is probably about 72 hours. After about 30 minutes my monitor goes on standby and switches off. It wakes up and returns to desktop when I press a button or move the mouse.

Last night I kept it on. It had been off the previous night so it was probably now running for about 20 hours. When I returned to it this morning I moved the mouse and pressed some buttons and nothing happened.

I tried turning the monitor on and off but it remained on standby.
So I decided to restart the computer. I pressed the restart button on the front panel but nothing happened. I held down the main power button for 20 seconds and nothing happened. At this point I noticed that the blue light was flashing instead of steadily burning.
The only way I could turn it off was by turning off the psu power button at the back.

I can not get the POST screen to appear. In summary, I can not get my computer to boot up when I turn it on. I can only turn it off by disconnecting the power.

When I press the power button, the blue light flashes; and the numlock, capslock and third light on my keyboard flash as well. The monitor does not turn on and there are no beep... Read more

Answer:Computer can't POST, turn off - flashing power, keyboard lights

Do you have a multimeter or a friend that does so you can test the power supply?
 

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Hello Forum,

Summary: Weird burning smell for 2 or 3 boots --> Doesn't turn on, no sounds or lights from comp --> replaced power supply --> worked for a few boots --> back to completely nonresponsive state 15 mins later (details follow....)

I do not know the system specs and I can't find them out without posting this issue at this time. It may not be that necessary to know the details but I can find out soon if necessary. Let's just say it is NOT a new computer - the motherboard is large - I could tell you the model in a later post - the processor is 1.x GHz, something like 512 MB RAM, I have 2 HDs. I am running Win XP.

Old Power supply: Was pretty old, up to 10 years old but maybe a few years younger (300 or 350 W). I haven't seen the computer much for 3 years since I started using and it was upgraded in the meantime.

One day I turned on my computer and shortly afterwards the room started smelling like burning metal/rubber or something acridly foul. Opened the case and nothing seemed to be boiling or noticeably hot, though I didn't really touch around. The only thing that was reasonably warm was the P/S. I thought I noticed the smell coming from it but it was only slightly smellier in that area, at most. Didn't add anything special or change anything in comp recently beforehand. Played loud music on in the night before but the speakers have their own power supply.

So I decided to replace the P/S - I purchased an hec HP485D 485W ... Read more

Answer:Solved: Computer Won't Turn on, no lights, replaced power supply

It's extremely likey that when your PSU blew it damaged your mobo as well. If you have removed and replaced everything else and nothing works then it's either your mobo or cpu. In this case it's likely your mobo.
 

3 more replies
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After i cleaned my laptop fan, i put everything back together. Laptop turned on everything was ok. Next day i leaved my computer on and walked away, when i came back it was off, A/C cable was pluged in so i tried to turn it on, but it didn't and none of the lights doesn't turn on too. What could be the problem, and how can i fix it?

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When I Exit Speedfan,my Cpu And Hd Fans Just Go On At Highspeeds And Dont Go Off Until I Go Bak To Speed Fan And Turn It Down Manually.....how Do I Just Get Rid Of Speedfan And Make My Computer How It Used To Be?
 

Answer:Solved: Everytime I Turn Off Speed Fan,my Computer Runs The Fans At 100%,how Do I Fix This?

15 more replies
Relevance 83.64%

Hi, I just bought the new apple TV, and I want to use it in the morning without getting out of bed, but the apple TV requires iTunes to be running and I need to shut my PC down overnight. So i need to turn my computer on at about 7:00. I cant find an option in the BIOS, which is Phoenix SecureCore. Im also dual booting Windows Vista and Ubuntu Lucid Lynx, so It cant be a software programme. If there is a turn on at.... on phoenix secure core please tell me if not, is there a way I can add this option to my BIOS. Putting my PC into hibernation is not an option.

Thanks!
 

Answer:Turn on computer automatically

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My computer is Lenovo ThinkCentre A70z. Today, when I switch on my compter switch, I didn't  click the computer power but it opened, is my computer have some virus or my computer have some problem? Please write soon!!

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I have a Packard Bell Intel Pentium 3 on Windows ME. It used to turn off automatically but recently I have hd to turn it off manually. This is okay but every time I turn it back on the computer has to go through the improper shut down message checking for errors. If I re-boot to an earlier time it works for a few days then back to square 1. Any ideas?

Answer:Computer will not automatically turn off

See if click here helps.

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Hey guys, little help here please.
Sometimes when I try to turn on IS it tries to turn On but everything greys out and nothing happens. Last time I tried it was about 4 hrs ago and since then its been hung up there. I can't open IS from settings now, Loading... shows up and it crashes after ~20sec. I can't turn off wifi because it becomes 'frozen' and when I press Back/Start button nothing happens but if I long press back button it show my active window is Start screen even though I am still in Wifi settings. After I release button wifi closes and end up in start screen.
I know if I soft reset everything comes back to normal. 99% I can even turn on IS. But why does this happen and how do you solve this problem (I know in the past some ppl used to have it)

Answer:Internet sharing doesn't turn on + cant turn off wifi

After a bit of searching this was the only answer I could find.
Remove/uninstall your nokia acount, install access point....you will get your internet sharing.
Not sure if that will help you or not but it's worth a shot.

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it just vibrates like it turned on but nothing appears or lights up on the screen

Answer:I tried to turn on my nokia lumia 630 but the screen doesn't turn on

Originally Posted by Windows Central Question it just vibrates like it turned on but nothing appears or lights up on the screen Hi there - Have you tried leaving it on the charger for awhile? That's usually the first thing to try. Let it get some juice in it and then try turning it on. If that doesn't work, you may need to download the WDRT program on your computer and plug your phone in there to reset it.
If you need additional help or have more questions or details to share, please join the site so you can reply in this thread. See this link for instructions on how to join Windows Central.

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My problem is actually similar to the following:
http://forums.techguy.org/hardware/730934-dimension-4700-light-flickering.html
This thread however had no responses.

I know a little more about my problem and hope it can be solved here.. Sorry for making this post so long, but this problem is a real bugger and I'm giving all the info I can.

The problem: When the computer doesn't start
When I plug in the computer, pressing the power button does nothing. This problem is aggravated in winters (weird but true) and when the D-Link ethernet card is plugged in (whichever slot).

When it does start:
In summers, I leave it powered for sometimes, say 20 min.
Gradually the power light on cabinet starts blinking rapidly (on pressing the power button).. a little later the HDD lights also start blinking. The CPU fan turns in jerks and in sync with these lights. A little later, the computer boots normally and works fine after that.
Also, operating it increases the temperature, and subsequently the computer can be made to start without problems.. till it cools down or I disconnect mains.

How I have to start it when it doesn't:
In winters, the above procedure doesn't work. Then I can try one of two things (I usually avoid turning the comp at all, use my laptop instead, since I don't like either method)
I can point a hairdryer from a safe distance at the motherboard, and keep the power button pressed. It starts in a little while.
OR, this is possibly a worse method..... Read more

Answer:Computer startup problem: power light flickers, fans turn in jerks

Have you replaced the BIOS battery? after 5 years its is most likely dead or nearly dead by now. Get your multimeter on it and check it's voltage (my money is on this)
Have you tested the CPU fan to see if it spins up OK, test on another PC if you have one?
Have you tried booting up to just the POST with NO drives connected with power?
Tried another PSU? Does this PSU work OK in another PC?
 

2 more replies
Relevance 82.82%

Everytime I power on my modem, my computer will turn on automatically. Can anyone tell me why? Can I set it in Bios? or somewhere else?

Thank you
 

Answer:My modem turn my computer on automatically

There is either a setting in your bios or a there is a jumper setting on your mobo. Refer to your mobo manual, look for "wake on ring" setting and set it to off or disabled.
 

2 more replies
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Every time I turn my computer on, I am automatically logged on....My computer never used to do that....How can I fix it?
 

Answer:automatically logged in when I turn my computer on

Please don't duplicate post, reply here:

http://forums.techguy.org/showthread.php?s=&threadid=100612
 

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hey guys i was wondering whether you can help me?

I want to shut my laptop down automatically at a certain point of the evening (i sumtimes fall asleep whilst watching dvds and find my self waking up to a laptop thats still on) Maybe about 4A.M.

was wondering whether this could be done through task schedular and if so how?

I work on a vista operating system

I will appreciate the help guys (and gyals)

Answer:turn off computer automatically: vista

Please refer to this article:
http://www.technospot.net/blogs/shut...windows-vista/

Happy zzzzzzzz's!

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Relevance 82.82%

I think I would like to do this for a few reasons. I would like to be able to just have it turn completely off if it hasn't been used in a few hours. Is there a way to do this?
Thank you.
 

Answer:Can I set my computer to automatically turn off after an hour or two of no use?

I find this piece of free software useful.You just set it for how long you want your computer to run and then it shuts down.

http://download.cnet.com/Slawdog-Smart-Shutdown/3000-2344_4-10064984.html
 

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My operating system is windows xp. I would like my computer to automatically turn itself on (power up) each morning at 6:30 am. Does anyone know how to do this or of a freeware software program that would permit me to create such a setting?
 

Answer:How can I get computer to automatically turn itself on each morning?

Enter your BIOS on startup, go to the Power Management section and you might possibly find an option there to allow the computer to turn on at a given time.
Different computers use different ways to access the BIOS, see below for a list of many of them.

http://www.cyberwalker.net/faqs/reinstall-reformat-winxp/enter-BIOS.html
 

4 more replies
Relevance 82.82%

Whenever I turn my computer on, I am automatically logged on....I have no clue why my computer is doing this, it never did it before....If anyone has any suggestions I'd appreciate it, but try to keep it simple, I'm practically in the dark ages when computer lingo starts flying . Thanks!!!!
 

Answer:automatically logged in when I turn my computer on

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Hi everyone,i have a trouble with my laptop, it auto turn off, then I cannot turn on, I have to wait around 15mins, then try to press turn on, so the laptop can start, but it only on around 45mins, then off again, I don't know what wrong with that, even I tried to hard reset it 

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I have a laptop running Windows XP. When I first turn on the computer my X-Cleaner program automatically starts loading and running. This is a nuisance to me as I would rather run it when I am ready to turn off my computer. I have read that if I go to the start up folder that is the place to remove programs that run automatically at start up. The problem is the program is not there. I also read that I need to go to the registry if I don't find it in start up. I don't know how to go to the registry and then how to do whatever I need to in order to change this from occurring. If anyone knows how, can you please let me know?

Thank you,

Adrine

Answer:Program Automatically Starts When I Turn On Computer

Go to Start > Run > type "msconfig". Go to the "Startup" tab, and see if the program is there. If it is, uncheck it and apply!

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Relevance 82%

Is it possible to make a specific software that i have downloaded on my pc turn on automatically whenever my computer turns on without me having to do anything?

Answer:How to have a software turn on automatically when my computer turns on

You can add it to the starup programs. Here is how:

1. Make a shortcut of this program on the desktop.
2. Press Start and type shell:startup, then press Enter
3. Drag the shortcut of your program into the folder that just opened
4. Close the folder

With the next boot, that program will start automatically.

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Whenever i turn on my computer, it loads the desktop, then a few seconds after it has loaded, it automatically restarts

This happens in a repeated cycle

However, if i make it so the computer has a lot to load early on, such as clicking on firefox or media player a few times, it seems to load these programs, obviously very slowly, and then the computer does not restart itself. IS this something to do with the computer being too busy to "think" about restarting?

I searched the forums, and google, but none of the problems i found seemed to restart in the same circumstances, and they didnt say anything about loading programs early on

I have turned off "auto restart on system failiure", as this seems to be common in the restarting posts, but not tested what happens apon turning the computer on yet.
Also, if this is the problem, then i don't like the idea that my system is failing every time i turn it on.

Thank you for your time

x

Answer:My computer automatically restarts repeatedly when i turn it on

Hi .

Have you tried booting into safe mode, for comparative purposes?

If you can get into safe mode...have you tried using XP's system restore function?

Any recent program/hardware additions?

Louis

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I have a Lenovo H320 desktop that I bought about a month ago. I'm trying to get it to turn on automatically every morning. In the bios there is a "Wake on Alarm" under "Power". I can set a wake date and the computer will turn on as expected. However, I don't see any way to get it to turn on every day at a set time. It will only allow me to set on specific wake date, which works, but then I have to go in each day and set it for the next day. I've used this feature before with computers and they usually have an "Every day" setting where you put in the specific date, but this computer doesn't seem to have that. I'm thinking maybe there is some special characters I can put in the date fields that will make it wake up every day. I've seem bios screens that don't have this feature at all and I've seem them to that, but when they do they always have an "Every day" setting, which make sense because there isn't much use in setting it to wake up just one time on one specific day. Does anyone know if there is a way to set the "Wake on Alarm" to wake every day? I sure don't see it. 

Answer:Trying to get computer to turn on automatically using the Bios Wake on Alarm feature

This post is now just shy of 3 years old.  I have exactly the same issue.  Support does not provide any help.  With this lack of information, I will not buy another Lenovo product.

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Hi,
I have a P4 1.4ghz with Win Xp, recently I've noticed 2 problems. One is that my computer will not turn off. I tell it to turn off and it just restarts. My other problem is that my CD drive (d:\) isn't reading anything. It is recognized by the Device Manager and i can eject it, but it won't read any CD iput in. Does it just nead cleaning????? I just installed 256mb of memory if that has anything to do with it.
Thanks!!
 

Answer:Computer Doesn't Turn Off

Here's a good place to see about your shutdown problems:

Windows XP shutdown troubleshooting

Regarding the CD drive, have you done anything to it recently? Maybe you knocked the cable loose when putting that new memory in?
 

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I have assembled my new cpu but it doesn't turn on. This is my second time assembling my computer and my first time went on smoothly. But this time I missed on something and I have no idea what it is. Every time I press the power button, nothing happens. I'm sure there is power on the board because the led indicator is active. I also noticed that the cpu fan moved a little as if it will spin, but it didn't continue.

I'm using ASUS P5G41-M Motherboard..
 

Answer:Computer doesn't turn on

Ensure that you've plugged in the 4 pin CPU power connector and fan connector.
 

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Ok here is the problem we been having. It seems that we have problems with our breakers going on and off constanlty but this time it really affected our pc. Our stupid landlord didn't pay the electric bill so our power was shut off durring the night. once it was back on we tried starting our computer back on an guess what nothing happened.

So i checked things out. first i checked the reset switch and we bought a new one of those, new power cord for the power supply, nope that wasn't it.

There are two color light bulbs by the reset switch the green one comes on when the computer is working. its not turning on and the yellow remains on tho so i figured its still getting power but maybe not from the power supply but from the battery since its a pretty big battery. But the fan isn't running, neither are the drives and other things so i think it is in the power supply. Do you think it might be the mobo tho? This computer is only two years old and it has a celleron proccessor and so i was also wondering could it be the processor too?

So here is the questions, what do i replace first? The power supply , proccessor, ram, mobo or just buy a new comp?

Just to let you know yes its plugged in and its turned on and the monitor is turned on also.
 

Answer:Computer doesn't turn on

First thing you should buy is a battery backup. Computers are very senstive to electrical problems, using a battery backup and a good quality powersupply will save you possibly thousands of dollars.

Most of these issues I've run into have a sort of chain reaction effect on the destruction of the PC. In all likelyhood, your powersupply is fried. If it was a good quality powersupply then that should be the extent of the damage, however if it didn't fail correctly then your motherboard could also be damaged. Depending on the quality of your motherboard, any various components of you PC could also then be damaged.

So giving that I understand your situation correctly, I'd first buy a battery backup (I prefer APC but Belkins are decent), then I'd buy a Powersupply (not a cheapo 350w Powmax, look for a good name like Enermax, Antec, Fortron, OCZ, or Seasonic) then see if your PC will start up. If its a no go then you need to replace the motherboard (at which point a system upgrade becomes an entertaining idea).

If at all possible try testing the components of your PC in another working computer so that you can devise what's good and what isn't.

But regardless, get a Battery backup.
 

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Ok the specs are in my sig...

This computer is almost 2 years old and I am seeing some signs of it being dead *lol*

running windows 7 (i think not important because it doesnt even go to the bios screen)

Symptoms included:
1. In the last month, when I turn on my computer, it doesn't turn on immediately and go to windows, but instead, it restarts for at least 5 times and then it goes to a "good state"... (take note that it does not go to the BIOS screen in the 1st 5 restarts) after that can I only use my computer, im not restarting because it i restart, it happens again...

2. Now, when I turn on my computer, it doesnt go to the BIOS and restarts over and over again... no display, no hard drive activity (referring to the light)...

I reseated the video card, the 2 memory cards, then I tried to fire it up, but to no avail, it gets the same thing... is my mobo broken? or is it another hardware?

sorry for my english, im not good at it...

please help me techies out there! any information will be greatly appreciated...

Answer:Computer doesn't turn on

It's probably a bad component on the motherboard.

If I were you, and I really wanted to fix that motherboard, I would start by checking the capacitors and replacing any that look even slightly off.
Then I would reflow every solder point on the board that looks discolored/dirty/not super shiny.

After that, I would pour some liquid rosin flux over the Northbridge, and southbridge, make sure that it has a nice coat on the underside, and then heat it up with a pen torch or reflow station.

This will most likely fix your issue, but it's sort of hard to guess at what the problem is by your description.

If a computer won't boot, and you've tested each ram stick individually as well as together, then the problem is likely failing hardware on the board itself. You can pay someone to perform this maintenance on the board for around $150, but it's cheaper just to buy a new motherboard.
Of course I don't know because I'm not looking at the motherboard. It could just be something simple. I would suspect that during the first 5 reboots one of the capacitors isn't holding a correct charge, and it takes a few restarts to get it to hold the correct charge. This is a guess though, I don't know.

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Hello everyone!! (I think I'm the only one here though on a Saturday night )

Anyway, I've been reading through the forum to see if I could find some answers to my problem with my HP and the closest one is "Old School" dated September 1, 2006. So, I've noted some of the answers and I'm going to try some things (that apply) tonight with my computer.

However, the initial problem started when I began to notice my computer slowing down, so I decided to remove some programs, files that I no longer needed. Afterwards, it didn't seem like it help any at all. A few days after that I began to get errors saying the memory was low and so I decided to completely start all over, going back to when I bought the computer new. However, when I attempted to do this it wouldn't let me saying the memory was low or not enough memory. Next thing I knew my computer completely crashed and I haven't been able to get it back on. Here are some of the things that are coming up when I try to start it.

1. Stop: c000021a {FATAL SYSTEM ERROR}
The session manager initialization system process
terminated unexpectedly with a status of
(0x000003a (0x00000000 0x00000000.)

The system has been shut down.

2. Stop: c0000218 {Registry File Failure}
The registry cannot load the hive (file):
\system root\system 32\config\SOFTWARE
orits log or alternate.

It is corrupt, absent or not writable.
Beginning dumping of physical memory.
P... Read more

Answer:Computer Doesn't Turn On

Welcome to Bleepig Computer.From what you have posted you may have a corrupted registry. The explaination on how to recover is very lenghty and complex. The best option will be for you to read the Microsoft KB and post any question you may have with us. There are two KB article that apply to your Post.If for any reason you are not sure or fell you cannot complete the task, STOp and ask questions. I feel sure we can help you thru this but you will need to read the articles.Error Message "STOP: c0000218 {Registry File Failure}"How to troubleshoot a "STOP 0xC000021A" error

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Hi I've got an Acer laptop with Windows XP Home Edition and about a third to a half of the times I shut down the computer it freezes at the blue page that says windows is shutting down, and doesn't turn off. Can anyone tell me if they've came across this problem before and if there's anything that can be done about it? Thanks
 

Answer:Computer doesn't turn off

If your computer does not turn off the power when doing a shutdown,
you may need to edit the registry.

Start Regedit
Go to HKEY_CURRENT_USER\Control Panel\Desktop
Edit the key PowerOffActive and give it a value of 1
You can do the same in HKEY_USERS\.DEFAULT\Control Panel\Desktop
Or:
You can go here:
http://www.kellys-korner-xp.com/xp_tweaks.htm
Scroll down to #76 and click on the word "Off" ,when the file download box opens up,click open.
 

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My computer just suddenly shut down. There was no shut down screen, it just went black out.

After I reset my power generation. My computer doesn't turn on anymore. Only the monitor is the one can be turned on.

Could you please, tell me why is this happening?

So please, oh please, reply me back, and tell me what to do!

Answer:My Computer doesn't turn on

Sounds very much as though your power supply is the culprit.

Fault-finding flowchart here: PC Power Supply Failure Diagnostics - Computer ATX Power Supply Troubleshooting and Repair

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Okay, so my desktop computer used to be on all the time and then all of a sudden it went off and it just simply is NOT turning on. Pressing the button to turn it on does absolutely nothing. I've tried leaving it unplugged for a week, and it still didn't work. There is a light on the motherboard so I know that the motherboard does have power but I can't figure out what's wrong. Can someone please help me turn this pc on?
 

Answer:Computer doesn't turn on

The problem sounds like the power supply, if not that, then the motherboard. A good way to narrow the problem down, would be to swap a known working power supply, and see if the computer boots up. If it doesn't, there is a problem with the motherboard (considering all wires and cord are connected properly and there are no other power issues such as AC outlet, surge protector, bad PSU power cable etc.)
 

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My power went off last night (computer was off and plugged into a surge protector). Now the computer won't come back on. I turned on and off the powerbar but nothing is happening with the computer. I finally gave up and came to work. Any suggestions I can relay to my husband so he can get it up an running? Thanks.
 

Answer:Computer doesn't turn on

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Hey
When I turn on my computer the monitor doesn't turn on, the light is green at first but then turns to orange and when the monitor did work this morning, the computer wasn't booting, it was stuck on a screen saying the RAM and stuff...The fan spins but nothing happens...
I have no idea what's wrong with it and there hasn't been anything new done to the computer. All the cables are in and where they should be.
What do I do?
 

Answer:Computer doesn't turn on

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Hi again, I write this because sometimes I tried to turn on my computer but it doesn't start, then I press the button again and the computer begin to running, I want to know Why it happen?

I have a UPS and Windows Me, but I don't understand the problem.
 

Answer:My Computer doesn't turn on

I'm wondering ( and this would be really easy to fix ) how old is the case ? Maybe the connection in the back of the power button is screwed up ...
Also could you post the system specs .
 

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computer does not turn on unless i hold the power button down

Answer:computer doesn't turn on right

try using the left hand.

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hello, today morning i turned off my computer and on the evening i tried to turn on but it was unsuccessfully, my monitor showed me only a blank screen and my cooling processor been working with the maximum rotation turn and computer light (outside) doesn't work either (but it was working on morning) also I tried start computer with disconnected hdd, ram etc. but still got problem, any suggestions ? maybe motherboard is dead, it's quit old ?

windows xp
motherboard - p6pe-vm
 

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Hi everybody. I'm new to techspot.
My wife's computer doesn't turn on. when she hits the power button the green light comes on for a few seconds and then it turns off again. any ideas? Her son normally pulls the plug off the wall to turn the computer off (silly boy).... Thank you in advance for your help
 

Answer:Computer doesn't turn on

Hello, jhsa, and welcome to Techspot :wave:

Please take a look at the following threads to make your experience here as enjoyable as possible

Message for all newcomers

SNGX1275's Guide to making a good post/thread

The Techspot FAQ

If you could take a minute to fill in some of your profile information that would be helpful to all members of the forum
Knowing someone's location in the world can be extremely helpful, even if you just put a country.

Also remember to post any problems or questions that you have in the appropriate forums

With regards to your problem, that is a pretty bad way to turn off a pc it could be that your power supply has broken, take a look through this thread to make sure, either that or the motherboard or cpu could be damaged from the power suddenly disappearing.
 

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First of all, sorry that my first post is for help but the problem is how I found the forum.Basically, one morning I turned on the computer and was just doing my daily things when all of a sudden the computer turned itself off, it was very sudden, no signs of any problems or anything. Now if I try to turn it on, the power button gets pressed like any other useless button and does nothing. Makes a little click sound like always, and the computer does not turn on.My belief is that this is harddrive related; however I am not entire certain if that is what the problem was. My harddrive is 40GB Western Digital harddrive, and I'm currently looking for the box to give you all more information but can't seem to find it, I will continue looking however.I tried turning off the powerbar, cooling the area around my mid-tower case, and cooling the case itself down, letting the computer rest for 24 hours, and then turning it on, but same problem, pressed the button, it didn't turn on. If this isn't a harddrive problem, anyone know what it could be? If you need information on any other parts of my computer and whatnot, please ask I'll be more than happy to provide you with the information.  Also, if the harddrive did die out on me, is there anyway of fixing it,I will respond ASAP if there are any other questions.THANK YOU! ... in advance.

Answer:Computer doesn't turn on

It could be a power supply, possibly the hard drive, maybe even something else.It seems that to solve this mystery there needs to be a little "operation".  If you've got the know-how to open up the case (which I am NOT advocating) UNLESS you have experience, I"d recommend taking the system to a knowledgeable computer repair person.  Alan <><  

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Hello --
I've got a Dell Inspiron 6000 laptop, it's about 4-5 years old. I'm not very tech savvy.

A weird thing started happening recently:

Whenever the computer shuts down (Standby, hibernate, or full shut down), either b/c I power it down or just b/c I close the lid, the computer refuses to turn on again.

When I press the power button, the fan starts up, the power light comes on, the caps lock light blinks 9 times and then it turns off again. Happens regardless whether the laptop is plugged in or on battery.

I have discovered that I can get the computer to start up by holding down the "play/pause" button bellow the touchpad and pressing a bunch of keys on the keyboard simultaneously. This causes the computer to turn on and opens a program called Dell Media Experience (which I've only used occassionally before). But this "solution" is not reliable and seems to be getting less and less effective(the first time, I just pressed the button, since then I've had no success unless I also hammer the keyboard a bit).

At this point, I'm afraid to let my laptop sleep or turn off for fear that it will never turn back on.

Anyone have any idea what the problem is? PSU? Motherboard? Something easy to fix that a non-techie like myself is just unaware of?

Plz let me know ASAP.
 

Answer:Computer doesn't want to turn on

You might want to check out data from Dell also:

http://support.ap.dell.com/support/...1&component=-1&lang=-1&doclang=en&toggle=true
 

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Hi, all. I wasn't there at the time of occurrence, but my brothers have told me that while they were on their computer, it started to ''smell like permanent marker,'' and next thing they knew, it shut off by itself.

So, I came and opened their computer, and I used a compressed air can to remove any dust that was sitting inside. I reconnected everything and put the PC back in its place, but it still doesn't turn on after multiple tries.

The monitor works, just the PC doesn't.

What else can I do? Is the PC a goner?

Thanks.
 

Answer:Computer doesn't turn on

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well one day my computer just shut off...i tried everything..the fans on the motherboard spin..i've tried changing everything but the power supply...would it be the problem?

i've hooked up different hd's and put a diff mobo and processor and even memory...

let me know what u think it is
 

Answer:My computer doesn't TUrn on..HELP!!

What are the things that you've done before the problem started? Can you elaborate more?
 

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When I turn off my computer the power supply doesn?t seem to turn off, the fans are still on and so are the LEDs. Windows shuts down and the HD stops too. The only way to turn it off is to press the button on the back. This does not really bother me but I would like it to totally turn off when I say it to and not have to press other buttons. Is it bad that this is happening and/or is my PSU shot? All of my voltages monitors show the same thing as before, nothing has changed. My PSU is a Thermaltake Toughpower 700W Cable ManagementPC specs:Core 2 Duo E6600 @ 3.4 GHzEVGA GeForce 8800 GTS 640 MB4 GB of OCZ SLI-ready RAM500 GB Hitachi HHD

Answer:Computer doesn't turn off

How long have you waited for a complete shutdown ? ?Temp sensors to cool down the system before power off ? ?Not sure on this one...what MBoard ? ?

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Hi everyone,

I apologize if it's been asked before, but I thought that results may be different because I have my own set of specs.
I have bought parts for a computer 2 days ago and was very exited to assemble them. thinking that I can finally play games on high graphics. My specs are as the following:
i5 4670 processor
gtx 770 graphics card
asus z87a motherboard
nzxt 410 case
cx750 power supply
8gb corsair ram

I have hooked everything up, as according to the manual, I did hook up the 8pin and the 24pin to the motherboard from the power supply, ram and cpu is installed properly, everything is wired correctly according to the manual

FROM THE CASE:
- hd audio cable goes in the AAFP port, a usb 2.0 goes into one of the usb ports.
-usb3.0 goes into the usb3.0 port
- port for the fan goes into one molex connector
- + and - pled is hooked up right, as well is the power and reset switches.
others:
- 24pin and 8 pin from the power supply is hooked up right.
- ram is installed

The problem here is that when I press the power switch, nothing happens. There is just a green LED on the motherboard that lights up when i connect power. Am I doing anything wrong? I thought with these basic things the computer should at least turn on. I really hope that it's not "defective equipment" because I bought them brand new 2 days ago. Hopefully I didn't break anything, nothing should break so far, and hopefully nothing burned or fried because I didn... Read more

Answer:Computer doesn't turn on

Welcome to the forum

Remove all add in cards, hard drives, disk drives, use one stick of memory in dimm0 then switch to dimm 1, then switch to a different stick. Since nothing happens make sure you have your power switch connected properly and that it works, double check the front header diagram for the power switch pins and if you get nothing at all short the two pins with a screwdriver to see if it fires up. Your video card will also require one 8pin pci-e power connector and one 6pin pci-e power connector so check those also.
 

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I need serious help. I got to school online and am in a really hard class. Now, my computer is flaking out on me. I like to turn my computer off when I am not using it because periodically the computer sounds loud like I am doing twenty things at once when I am not even using it. Then my computer gets quiet again. I have XP Home Edition and it doesn't turn all the way on sometimes. In these instances, all the lights that are supposed to be lit on the tower are, but the monitor doesn't turn on. I have to hold the power button in until the tower turns off, I wait about thirty seconds then turn on the power again. It is like Russian Roulette, sometimes it works, sometimes I have to do this again. It has gotten slower too, my computer is so freakin slow, and it just froze on me for a moment. I am not sure this next piece of information will have anything to do with this but last week I had ran and downloaded the MS Essentials program for viruses and spywares. It said I had Win32/Induc.A, and it said it was a virus. All the files listed below it I deleted even from recycle bin so I thought it was gone. I looked up information about the Induc.A and it said it attaches to Delphi files if you have them and copy files and rename them as well, which I did a search and found no delphi files. Then the MS Support Page said that if none, it will just bounce around your system in a richochet style.I will check in later, to see if I been hooked. Thank you.

Answer:Computer doesn not turn all the way ON sometimes

<<I got to school online and am in a really hard class.>>It took my feeble brain...a few minutes to realize that should read "I go to school online" .System manufacturer and model?Have you seen http://www.microsoft.com/security/portal/T...Win32%2FInduc.A ?Did you follow the suggestion to run a scan with either product listed?What AV program is installed on your system?Do you think that your system is infected now?Louis

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Hi Everyone,
I have a dell desktop which had some problems and made a weird sound whenever I turned it on so I decided to open it up and take out the HDD and plug it into a desktop that I built and backup the data and reformat the drive. So then I put the HDD back in and now whenever I try to turn the computer on it doesnt even turn on. Before it wouldn't show me anything but atleast when it was turned on you could hear everything spinning as the power went to all the components. However now the MoBo lights up and thats it, I tried pressing power button multiple times but nothing. All the connections seem to be secure, the pins unbent and the parts snug into their slots so I don't understand what the problem could be. Please help!!!
 

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Hello friends,

My old computer (Intel Impression 440BX) was running Win98, I formatted and installed XP Professional. Now when I select shutdown, the computer no longer turns itself off - as it used to. I now get the "It is now safe to turn off your computer" screen and have to manually turn off the power to the Motherboard.

I didn't make any changes to BIOS (AWARD) and I looked around to see if XP changed something, but didn't notice anything. I am not that experienced with all the different BIOS settings.

Thanks for your help.
 

Answer:XP Doesn't turn power off my computer

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I have a Dell Dimension 8400 with Windows XP Pro on it. It's only a year and a few months old.

Anyway, a few months ago, I turned on the computer and instead of loading properly, it beeped and nothing showed up on my computer screen. And all I could hear after the beeping was the fan, which I noticed to be abnormal since the machine makes its usual running sounds. So, I opened up the computer and saw that one of the metal strips that covers an unused drive space was loose, so I tightened it back into place, closed up the computer and when I turned it on, all was well.

Now, just a few days ago, the same thing happened except nothing I did could make my computer turn back on. I tightened the metal strips, drives, checked all plugs, etc only to find out that whenever I pressed the power button the green light goes on, the beeping happens, but the computer will not turn on and function. All I still hear is the fan on inside the computer.
Please help.
 

Answer:my computer beeps and doesn't turn on, help!

Does the beeping stop after a certain number of beeps each time? If so, count the beeps and refer to the online help available through the PC manufacturer. It's possible the movement when you opened it up caused the machine to work again and was not related to the metal strip. (possible). If you have more than one ram module, try each one separately. This may single out a bad one. If there is any way that you can borrow a friend's ram memory module(s) try different ram. Almost every time I've had the beeping problem, it has been ram related.
 

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my computer does turn on... but the monitor acts as if the computer were still turned off, the mouse doesn't turn on either, nor the keyboard, the cd rom doesn't respond either, the computer is turn on but it's as if it weren't.. what can be my problem and how do I fix it, if it can be fixed?..please help
 

Answer:computer doesn't turn on..technacally

I would be trying a new power supply as my first step as it sounds yours has partially failed.
 

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Hello Gurus - So - I built myself a computer about 6 months ago.  Core 2 Duo E6850 4 gigs ram etc etc.  Everything has been working fine until i came home from work today...and the thing just doesnt turn on.  I hit the power button, nothing happens.I changed outlets, and power cords and still nothing.I need help figuring out if it is the actual case button, the power supply, or something worse.Whenever the computer is plugged in, the green light on my mother board lights up, which leads me to believe the power supply is still pumping out some juice - and that the problem is with the case's "on" button.Does anyone have any solution to try and figure it out...without actually purchasing a new power supply or case?Thanks!

Answer:computer suddenly doesn't turn on

Borrow a known good PSU of the same or greater wattage and swap it in there to see if this is the issue.The MBoard light doesn't need a whole lot of juice so it basically tells you nothing.Were there any symptoms leading up to this problem ?Have you installed any new hardware recently ?Post back with your results and we'll go from there.

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The computer loads to the xp home logo, sounds like its gonna shut down, then starts all over again (reboots and continues this cycle)

It's running Windows XP Home.

It was just loaded with a bunch of Windows updates, probably a years worth I'd guess. Also, a virus scan was run and found a bunch of trojans, but this was h0ours before windows update and the computer shut down / restarted properly after the virus scan was done.

Or, in other words. The virus scsan ran, tried to remove a bunch of trojans (but I guess it didn't remove them properly because it keeps getting a bunch of messages that the Trojan horse is still on it). After that, the computer restarted properly. Then, Wijnodws UPdate went, installed a bunch of things, and now it wont start properly

Anyone have any ideas?
 

Answer:Computer doesn't turn on properly

O hyeah, Windows update installed 55 things
 

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Hi,

I have been searching everywhere for an answer to my problem and have yet to find something. What happens is, after using my computer for extended periods of time (6hrs+) if I for some reason, shut down the computer (Or say the power cord gets yanked out) it will simply not turn back on immediately.
I click the power button to turn it back on, and for a split second the fans, etc, spin and then just cut out and everything is dead. If I click the power button on a second time, nothing even starts to work for that split second; its just completely dead. Now, if I take the power cord out, wait 10 secs, and then put it back in and power it on, I get the same split second power up, and then it goes dead.
The only way I get it back on again, is to leave the power cord out, wait around 10-15 mins, reconnect the power cord, and it works perfectly.
This problem only seems to occur when the computer is "hot", like I said after being on for a fair while, and immediately turning it back on. If I go to use it in the morning after being off all night, I never get this.

The reasons I think it may be, is either a faulty power supply, faulty power switch, or maybe the motherboard? I don't really know (Although I don't think it is the motherboard as it was only replaced a while back because of a burn out :\).
I was reading somewhere about how dodgy soldering can produce different results if the computer is hot or cold because of expanding/contracting. Could this be a ... Read more

Answer:Computer doesn't turn on after extended use

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I have a sony vaio desktop (PCV-RX830 in case you're wondering). I come back from 2 months of vacation to find that my parents took my computer to their workplace so they can use it. I see it working fine as it had two months ago. So we open it up, blow the inside of dust and I bring it back to my home. As soon as I start it up at home the blue ON light comes on and so do the whirling of the fans. But then after a second or so of booting up, all the noise inside the computer slowly dies down and nothing shows up on the monitor. The blue light remains but it's obvious it's not on. After a day trying to figure out what's wrong with it, I take it to Best Buy (cuz i bought it there) and have their people look at it (the biggest mistake i've ever made).They tell me that my primary harddrive has bad sectors and my third memory card went bad (I had 3 memory cards totaling 1g).I give them the benefit of the doubt and buy a new harddrive and memory stick. I install all of these into the computer myself since I don't want to pay extra and since I've already installed harddrives and memory sticks by myself before. I start up the computer and the same exact problem occurs. Even with a new harddrive the computer just doesn't boot. Nothing shows on the screen at all. All i'm left with is the dying noise of computer parts inside the tower. Please someone tell me what's wrong and what I can do about it.

Answer:Computer doesn't turn on anymore

QuoteI have a sony vaio desktop (PCV-RX830 in case you're wondering). As soon as I start it up at home the blue ON light comes on and so do the whirling of the fans. But then after a second or so of booting up, all the noise inside the computer slowly dies down and nothing shows up on the monitor. The blue light remains but it's obvious it's not on. I buy a new harddrive and memory stick. I install all of these into the computer myself since I've already installed harddrives and memory sticks by myself before. I start up the computer and the same exact problem occurs. Even with a new harddrive the computer just doesn't boot. Nothing shows on the screen at all. All i'm left with is the dying noise of computer parts inside the tower. 1)Do you hear beeps?2)What do they sound like?3)Specs for PC?

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Hello,

I've just returned from a weeks holiday and I tried to turn my computer on but it fails to do so.

I left my computer as I normally do. I use it everyday usually, but returned to find it not working. The red light on the front of my case is on, indicating that there is power to the machine.

I opened my case and pressed the power button to see if anything happened. I noticed that my fan moved for half a second when I pressed the power button, but that is it.

I have unplugged the 24 pin and 4 pin cables that were plugged into my motherboard and plugged them back in.

Ive taken out the battery on the motherboard to restart the CMOS (I think it's called that) and put it back in. Doesn't work.

I have tested the computer's power cable with my monitor and that turns it on. I've tested the wall socket with a lamp, and the lamp works.

Any help please?!

Here's my spec.

Gigabyte B75-MD3H
Intel Core i7 (3770) 3.5GHz X 4 (14GHz) L2 Cache 8MB
8 x USBS Ports Onboard Raid 0/ Raid 1/ Raid 0+1
5.20 Internal Card Reader & High Definition Audio Surround Sound
Network Fast Ethernet Gigabit Lan & Wireless Lan 802.11b/g/n
Ram 8GB DDR3 Kingston Hyper X
Display PCI Express NVIDIA Geforce GTX 660Ti 2048MB
Hard Drive 500GB SATA II
Windows 7 Home Premium 64bit
 

Answer:Computer doesn't turn on (a week after non use)

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Hello,
I have a Dell Inspiron 15-3521. 2 days ago, my laptop battery percentage dropped down to 0, and as you would expect, it shut down.  I then charged it overnight thinking it would be working fine the next morning,  but the system didn't even turn on to tell me if the battery was low. Please help ASAP, thank you.

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