Computer Support Forum

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

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

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.

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

I recommend downloading and running Reimage. It's a computer repair tool that has been proven to identify and fix many Windows problems with a high level of success.

I've used it in the past to identify and fix everything from blue screens (BSOD's), ActiveX errors, corrupt files and processes, dll/exe/sys errors, recover lost memory, Windows update problems, defragging, malware removal etc.

You can download it direct from this link (This link will automatically start a download of Reimage that you can save to your computer.)

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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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 -

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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'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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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 itsel... Read more

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.

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My problem is actually similar to the following:
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?

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If you want assistance you need to provide a lot more information.1) Tell us about your system2) What is new or different since the last time everything worked properly (ie, new hw, new sw, virus, error, etc)?3) Tell us EXACTLY what is going on IN DETAIL

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PowerEdge T20 won't power up, power button & fans repeatedly turn on/off forever
1 year old. Press the power button, power button lights up amber, then white, CPU fan spins up briefly, then a beep and the power button turns off and the fan shuts down. Three seconds later the cycle repeats forever until I depress the power button for 5 seconds.
Is this a bad power supply? A bad motherboard?

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i just finished building my computer, and it loads into the BIOS fine, and all fans are working EXCEPT the power supply fans! this is driving me mad because ive checked all my connections and i cant find anything wrong. the chassis power plug is plugged into a 4-pin, the cpu fan is plugged into the cpu fan plug on the motherboard, and the 3-pin power supply fan pin is plugged into the pwr fan on the motherboard. (the manual for the case says to plug it into any fan plug on the case). where am i going wrong!?

case: antec 350W cant remember model number
motherboard: asus a8v deluxe

Answer:Power supply fans won't turn on!!!


only the back fan of the antec power supply is not running. the inside fan is running. is this supposed to happen? it makes me nervous seeing the exhaust fan of the PSU just sitting there frozen. does it only turn on when it needs to...? :suspiciou

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Toshiba Satellite laptop, L55 series, running W10 Anniversary. I don't have this problem yet, but know from past experience that it can happen. I think I read somewhere that you can power up the dead machine by pressing one of the keys (I think it's the zero key) at the same time a pressing the power button. Is that correct? Thanks..Ed

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So I have an ASUS P4C800-E motherboard in a system that a built a few years back. It worked fine but the system has been sitting in my basement for a year or two unused.

I decided to take the components and drop them in a new case.

I have hooked everything back up properly (i think) but when I hit the power button, the cpu fan, power supply fan and case fans turn on for a brief second and then shut off. (the green standby light on the motherboard is on)

What do I do?

I think you can tell from my question I am exteremly amatuer at this. Simple explanations please...

Answer:Turn power on... fans start up then power shuts off in 1 second

With it shutting down after 1sec, I would check that the hsf is plugged in and working. If there is no fan input ie fan speed, most boards shutdown. In addition that the hsf is installed correctly. If it is loose, etc you will have problems. Most of the time when the hsf is loose, it shuts down in about 5~10sec not 1sec. I tend to think it is more of a shorting problem of the board to the case.

If that is not the case, I would attempt to pw ON the system outside of the case. There are complete instructions in a guide at the top of the forum. It is called troubleshooting guide for problem builds.

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I just recieved my new Dell XPS. I have one thing that I would like to change and can't seem to find out how to do it. When I enter standby, the computer shuts down but the cooling fan(s) continue to run. When I bought my Dell 8100 three years ago it was the same way, but the issue was fixed when I upgraded to XP Pro. Now, with the XPS and XP pro the fan(s) continue to run while in standby. There must be a way to control this. Maybe through the bios? Any help would be great.

Answer:How to turn off power supply fans while in standby?

Look at APM in the BIOS.

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In which of the ACPI power states on a desktop computer are the CPU/PSU fans on?

I guess in S0 all fans are ON. In what of the other states are fans off?
Wikipedia: Advanced Configuration and Power Interface:

? G0 (S0): Working. "Awaymode" is a subset of S0, where monitor is off but background tasks are running.
? G1, Sleeping subdivides into the four states S1 through S4:
o S1: All processor caches are flushed, and the CPU(s) stops executing instructions. Power to the CPU(s) and RAM is maintained; devices that do not indicate they must remain on may be powered down.
o S2: CPU powered off. Dirty cache is flushed to RAM.
o S3: Commonly referred to as Standby, Sleep, or Suspend to RAM (STR). RAM remains powered
o S4: Hibernation or Suspend to Disk. All content of main memory is saved to non-volatile memory such as a hard drive, and is powered down.
? G2 (S5), Soft Off: G2/S5 is almost the same as G3 Mechanical Off, except that the PSU still supplies power, at a minimum, to the power button to allow return to S0. A full reboot is required. No previous content is retained. Other components may remain powered so the computer can "wake" on input from the keyboard, clock, modem, LAN, or USB device.
? G3, Mechanical Off: The computer's power has been totally removed via a mechanical switch (as on the rear of a PSU). The power cord can b... Read more

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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, 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


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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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?


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

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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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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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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
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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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 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.

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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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.


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.


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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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 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?

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Hi to all Eight forum.
I m here with a strange problem, it happens from yesterday, the problem is when I playing games on my Dell inspiron N4050 and then the main power where the charger pluged in is turn off (it is the most problem in my country that there is heavy short fall of power), the laptop is remain ON just for 2 or 3 seconds and then its suddenly OFF. its not happening before, why is that,? why is the laptop didn't get power from the battery.?
when not playing games. and the main power (electricity) is gone, then this problem is not occurred.
plz understand my problem and reply me.
sorry for my bad English.

Answer:Laptop suddenly turn off when main power turn off.

Could it be overheating protection?

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Hello Microsoft team,
We need for an application to unplug and replug usb3 - not physically but with a program.
We checked a lot on the internet but did not find answer how to do it in windows 8.1 pro (in c++).
We know that hibernation creates something alike, but how can we only turn down the power of usb3 and return the power back on back via program (in c++).
Thank you for your help.

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Although i configured "notification text" for low battery level in the energy options from toshiba power saver, there is a acoustic alarm. Is it possible to switch off this acoustic alarm ?

Answer:How to turn off the turn off the notification sound of Power Saver?


This should be possible. Did you check the Toshiba Power saver setup settings?
You can change the option called "Notification method" from "Sound+Message" to "message" only or "No action"

PS: What notebook do you use???

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i built my computer 3 weeks ago and has been working great. Recently i burned a cd in nero, and restarted and it wouldn;t come on. Only the fans and leds worked. The fan on my graphics card was really loud like it was working at full speed when its normally quiet. After a while playing around and nothing working, i just randomly turned it on and it did! But today it did the same thing and I can't figure it out. I went out thinking maybe it was the power supply and took my mobo out and the new power supply didn't make it work. I'm thinking its either the motherboard of graphic card. Which one is more probable?

My specs: gigabyte ds3 mother board, evga 8800gts 320, g.skill 2 gigs ddr2 ram, intel conroe 6750, and an eneremax powersupply. Please help!!

Answer:Computer will not power on (fans work)


Not totally sure what you did "I went out thinking maybe it was the power supply and took my mobo out and the new power supply didn't make it work.", but it does seem like you tried a new PS.

Disconnect everything except the CPU/HS/fan, RAM(one stick at a time if you have two) and video card. If it doesn't change things you will have to try other different components like the video card, RAM etc.

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I have two 24-inch displays. Its really nice to have them turn off (low power mode) when I have not been active on the computer. Sometimes they don't turn off after the time setting, 3 min, 5 min, whatever. It appears that some system program that is running is causing the problem as I have turned off all the programs that I interact with. The reason I think it may be a system program is that last night I turned off the monitor power switches long after the automatic time setting minutes had passed. This morning the displays were off when I turned the power back on, so at some later time the automatic off had worked.

As you might expect this has only been happening since the Anniversary Update as the automatic display off has worked properly for over a year on this new Win 10 computer.

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I have set power options to turn off screen after 20 minutes.

It resolved itself suddenly a week ago.

Today it is not working again.

Any ideas what could be causing this

I tried command powercfg -requests and get None on all results.

All help appreciated.

Thank you.

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I even tried setting the idle time to only 1 minute but none of my 4x hard drives will turn off when idling. Search indexer is turned off. System setup: i7 920, Asus P6T Deluxe, AHCI enabled with the latest intel drivers.

I didn't have this problem with this system when using XP before.

Any ideas?


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is there some Fn key that will do this or a program? thx

Answer:t61 is there a button or progam to turn off the screen? power man. doesn't work

If you disable system entering suspend or hibernate, you can power off screen by closing the lid. Windows power manager should do it on a timed basis, but an active task will usually prevent it. As for a key, there probably is one, but I've never looked into it. Maybe someone else can give you a better answer.

ThinkPad W-510 i7-820QM(1.73-3.06GHz) Quad Core... ThinkPad T500, T9900, 8gb SSD...FrankNpad T-60p/61p (X9000 2.8ghz) 8gb SSD ips FlexView...ThinkPad T-61p (T9300 2.5ghz) 8gb ram...Thinkpad X-61 Tablet 8gb ram.

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Last night my computer blue screened about 3 times then it just stopped turning on altogether. Wheni plug the power supply into the motherboard the neon fan turns on for a milisecond but that seems to be the only way that i can tell that there's power going to the motherboard.

I've tried 4 different power supplies, different processor, different BIOS batteries, different RAM, etc, but no matter how many times i try to turn it on it just wont turn on.

I do recall doing something innthe BIOS last night which seemed to start this dilemer. I went into power management and did something to the power switch option, then set everything back to default settings.

This is when things started to happen then my pc just wouldn't turn on at all.

It's a socket939 MSI CoreCell.

Could something i did in the BIOS really be causing this problem and is there a way to fix it?

Like i said there does seem to be power going to the motherboard but it simply wont turn on (i even tried different power switches just in case..@

Any help would be greatly appreciated. I just don't want to buy another 939 motherboard as most shops don't cell them any more and it means i'd have to buy a new processor too.

Answer:Computer wont turn on with power switch but there is power going through it?

If it is a BIOS setting, removing the CMOS battery for a few minutes should clear it. Since you've already changed the battery more than once, it would seem that is not the problem. Considering what you already tried, it might be the motherboard itself or possibly the graphics card but my money is on the motherboard. Just to be sure do you have another graphics card to test with?

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I recently upgraded Windows 7 to Windows 10. When I power down the system from the menu, my computer does not completely turn off. The procedure I use is described below:

Click Windows_Start_button > Power > Shutdown

The system closes applications and appears to initiate a shutdown procedure. Everything appears to be shut off, but my mouse is still lit up. I do notice that the fan stops and everything else appears to be completely shut down. When I was running Windows 7 before my upgrade, my system completely powered down.

I have a dual boot system with Linux, and when I power down from Linux, the shutdown is complete, so I don't think I accidentally did anything to the hardware or BIOS.

Has anyone else experienced this? I'm pretty sure there is some tweak in Windows 10 that would fix this, but I haven't found it yet. Thanks for any suggestions you might be able to offer.

Answer:Power down button does not completely turn computer power off

I found the solution on another thread. If you have this problem try the following:
1. Log in as an administrator.
2. Right click the Menu button.
3. Left click -> Control Panel > Power Options > Choose what the power button does > Change settings that are currently unavailable
4. Uncheck the box next to Turn on fast startup (recommended)
5. Make sure Hibernate is unchecked.
6. Left click Save changes.
The next time you shut down the computer, it will be completely powered off. At least this worked on my machine.

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Relevance 77.49%

I recently upgraded Windows 7 to Windows 10. When I power down the system from the menu, my computer does not completely turn off. The procedure I use is described below:

Click Windows_Start_button > Power > Shutdown

The system closes applications and appears to initiate a shutdown procedure. Everything appears to be shut off, but my mouse is still lit up. I do notice that the fan stops and everything else appears to be completely shut down. When I was running Windows 7 before my upgrade, my system completely powered down.

I have a dual boot system with Linux, and when I power down from Linux, the shutdown is complete, so I don't think I accidentally did anything to the hardware or BIOS.

Has anyone else experienced this? I'm pretty sure there is some tweak in Windows 10 that would fix this, but I haven't found it yet. Thanks for any suggestions you might be able to offer.

Answer:Power down button does not completely turn computer power off

I found the solution on another thread. If you have this problem try the following:
1. Log in as an administrator.
2. Right click the Menu button.
3. Left click -> Control Panel > Power Options > Choose what the power button does > Change settings that are currently unavailable
4. Uncheck the box next to Turn on fast startup (recommended)
5. Make sure Hibernate is unchecked.
6. Left click Save changes.
The next time you shut down the computer, it will be completely powered off. At least this worked on my machine.

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Relevance 77.08%

Ok I know this sounds ridiculous, but after kind of a harsh shut down last week, the computer will not turn on anymore. I checked the power strip - its fine. I plugged it into an alternate outlet - nothing. I bought a new power cord (thinking I blew it out!) - and still no juice! The green light in the back flickers a bit but won't stay lit. What happened?! And more importantly how do I fix it?

Answer:No Power; Computer won't turn on!

What do you mean by "harsh shutdown"? Also, it sounds like your power supply has just gone bad. Gather information such as the power supply wattage, etc. and go buy a new one.Flame

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have a HP dc5000 SFF
with windows XP Professional

When I push button to turn on, the green light comes on, then blicks green and a beeping starts, any ideas?

Answer:computer has power, won't turn on

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I thought the power supply unit to my emachine T1840 was shot when the cpu would not turn on, so I replaced it with a new one, and it was still dead. What next?

Answer:Computer will not turn on, no power

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Relevance 76.67%

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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My son's computer wouldn't shut down, it would close down the OS but the computer lights and HD would still be running. I did a scan, Ccleaner with its registry fix, and degfrag.. that made it work maybe twice. Now it is doing it again.
It refuses to turn off even with the power button (it shuts off then starts again, on its own - I am NOT pressing the "restart"). I have to unplug it from the wall to make it stop re-starting itself.
Any ideas?


Answer:Computer won't turn off, even with power button.

What Operating System your son's computer is? Is it Windows XP or Windows Vista?

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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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Can someone please help me. Take in mind my computer skills are just average. This isn't a problem yet, but would like to get a fix before if possible. Here it is. This laptop is only 5 to 6 months old. Windows 8. My power button that turn,s the computer on, sticks some. I have no money to take it to a shop, I was wondering if there,s a trick to fix it? Or another way to turn it on? Thanks, Chuck

Answer:to turn computer on ( power button )

Is your computer new and still in warranty? if the power button sticks there may be a known issue with the casing. Have you tried to reach out to the manufacture to see if there is a known issue?

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I have a very old Hewlet Packard Pavillion (over 7 years old) desk top computer.  About 2 years ago a friend upgraded the computer and software and installed Windows XP.  I moved to a new apartment and was plugging the computer in and there was a surge....the surge protector didn't seem to work and now the computer won't turn on.  My question is can I recover the data on the computer.  If not is it safe to recycle w/information still on the hard drive.  Thanks!

Answer:Computer won't turn on/power surge

If you have another Desktop Computer (laptop will work too), you can plug the hard drive into the good computer as a Slave Drive and access the data as if you were reading a Flash Drive (usb drive)

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Something wierd going on, I can shut my windows XP down like normal, and I get all the way thru the shut down screens, the LCD screen goes blank, the keyboard lights go off, but the power supply in the computer remains on, powering the fans and lighting up my front panel fan control Assy. In order to turn off the power supply, I need to switch the switch on the back of the computer (power supply switch). Then, to turn if back on, I need to turn on my Power Supply switch, and open the case, and lightly touch/push the area near the CMOS battery, and without even touching the front panel power switch, the computer comes to life and I am able to load Windows XP and go about my bidness as normal! I SUSPECT this was caused from a lightning storm a few nights ago, it wasn't near me, but it caused the power to go out and come back on rapidly like three times. What gives? Power supply, Motherboard?

Answer:I cannot turn my computer's power supply off!

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I was sitting at home enjoying myself one day and then I suddenly hear a thunderstorm outside. First the monitor flashes and seconds later everything in my room turns off and back on immediately, everything except my computer. The monitor and everything was working perfectly but the computer itself was showing no signs of power at all, no blinking lights/LEDs on the front, Back, inside the case, no fans spinning, no beeps, no nothing. I tried taking my PSU out to test it with the paper clip trick, but my DVD/CD Drive is preventing me from taking out the cords. What do I do?

Answer:Computer won't turn on after Power Outage

Hi Jkillaz98, Welcome to Sevenforums

Check if the PSU fan is moving at all or not, if not try to install a spare PSU (which is working) and check if motherboard is getting power or not. You can remove your DVD/CD drive and then take out the PSU.

If the PSU is failing, you can always buy a new one. But, (may god forbids) your motherboard is can get that repaired as well...not to worry. But, first we need to find out what is causing the issue.

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Power button will not turn on computer HELP!! I just put together a FX8520 with an ASUS M% A97 R2.0 and I remember something about possibly selecting the power button to turn off the computer. Now the only way to start it is to manually push some buttons on the MB and then push the power button for 3 seconds, then one push and it boots. Can someone tell me what is going on? I am running Windows 7 with a Corsair AX 750, 1TB, 4gig RAM, and HD5850. I already made sure all connections are okay.Thanks

Answer:Power button will not turn on computer but MB will HELP!!

Correction, M5 A97 R2.0

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It either shuts down or it doesn't!

What is it you mean here? XP is somehow restarting? There is still power to the motherboard?


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Hi, we had a power outage here for a couple of hours, and when the power came back on, my computer wouldn't turn on. The montior, speakers, printer, and everything else came on, just not the computer itself. There is a flashing green light in the back, so it must be getting some power. It's an HP Pavillion a510n. I would appreciate any help, Thanks.

Answer:Computer won't turn on after power outage

Almost definately it's the power supply that's gone. You can get it tested at a computer shop to make sure, and get a replacment (or from the manufacturer).

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Hi there, I just got this problem 4 days ago.
While I was working the elecricity went down in my neighborhood. At that time my computer was on (downloading movies). When I get back I waited a bit until the electricity's back, then when its back I tried to turn on my computer, but it did not work.
I checked the power cable if it loose, or checking the power bar if its malfunctioning, bit everything was fine. Since other electronics that's connected with my power bar worked properly except my computer.

So I open my computer and looked inside. I did not smell any burn which I'm afraid. Reattaching cable, try to turned it on again, not working. Then i see there's a switch
at the back of my computer, and I tried to pressed it and I noticed a small lights near the motherboard turned green. Then I turn on my computer again, still no power. Then I pressed the switch again at the back and the lights went off.

After thinking a while I concluded that it is the power supply problem. So since i have a warantee from X company I just brought it to their store and see what they could do.

3 days later I'm kinda pissed off because they did not call me since I'm thinking it's just a matter of replacing power supply. If i Have one or it's free I wouldnt have brought my computer there since I could just replace it by myself. So I came back to the store asking about my computer's status.

To my surprise they said the power supply it's fine, it&#... Read more

Answer:Computer can not turn on after power outage, causes?

light86 said:

Hi there, I just got this problem 4 days ago.
While I was working the elecricity went down in my neighborhood. At that time my computer was on (downloading movies). When I get back I waited a bit until the electricity's back, then when its back I tried to turn on my computer, but it did not work.
I checked the power cable if it loose, or checking the power bar if its malfunctioning, bit everything was fine. Since other electronics that's connected with my power bar worked properly except my computer.

So I open my computer and looked inside. I did not smell any burn which I'm afraid. Reattaching cable, try to turned it on again, not working. Then i see there's a switch
at the back of my computer, and I tried to pressed it and I noticed a small lights near the motherboard turned green. Then I turn on my computer again, still no power. Then I pressed the switch again at the back and the lights went off.

After thinking a while I concluded that it is the power supply problem. So since i have a warantee from X company I just brought it to their store and see what they could do.

3 days later I'm kinda pissed off because they did not call me since I'm thinking it's just a matter of replacing power supply. If i Have one or it's free I wouldnt have brought my computer there since I could just replace it by myself. So I came back to the store asking about my computer's status.

To my surprise they said the power suppl... Read more

2 more replies
Relevance 76.26%

Hi all,

I went to work this morning at 8am and my desktop computer was on.

When I came home, the computer was off. When I press the on button, nothing happens.

I called the electric company and found out there was an outage in my area from 9:44 to 9:47.

They advised me to turn off all the breakers and then turn them back on after a couple of minutes.

But, the computer still will not turn on.

Any ideas on what to do? :/

Thank you in advance!

Answer:Computer Does Not Turn On - Power Outage

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Relevance 76.26%

I have a Emachines T2958 and one day the circuit breaker at my house flipped and the power went out. About 5 hours later when i tried to start it up about 20 seconds injto the boot after the windows logo it would restart itself and just keep doing that repeating the process until i would turn it off. Can someone plz help me fix this?

My comp has
512mb Ram
64mb integrated nividia graphics
2.66 Ghz processor
Intel Celeuron Processer

Someone plz help.

Answer:Computer won't turn on after power outtage

Which came first, the chicken or the Emachines....? didn't exactly say if the box blew the breaker or vice-versa. You might try resetting the CMOS. Hang loose, wait for a another opinion

1 more replies
Relevance 76.26%

I replaced power supply unit, motherboard and hard drive. My computer still won't do anything after power surge. The green power supply light stays solid green, but nothing else comes on at all.

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Relevance 76.26%

Okay, so.

I know everyone has heard this scenario, and I have done a good amount of time on google searching for an answer, and have yet to come across something that helped.

What happened:

Overnight on Tuesday we had a pretty wicked thunderstorm which knocked our power out when I was sleeping (clocks reset, etc gave it away). When I woke up, my computer was off. No problem, I thought, that is normal. I go over to boot it up.. nothing. No LED lights, no fan spin, no beeps, no NOTHING.

What I've done:

I have unplugged and switched off my computer and left it all day, came back after work, plugged it in, still nothing. I have tried a different outlet, still nothing. I have flashed the bios for fun, still nothing. I've checked and rechecked all of the cables (which shouldn't be necessary, the computer didn't move), and they all are correct and in place (I've reseated them too).

Now, I know what you are all going to say : "Do you have a surge protector?" Yes. Yes I do. I think it just failed or something.

Also, I know you will tell me that my power supply is most likely fried, and in all honesty, you are probably right. I don't own a tester, so I will probably have to run to Best Buy or something with just my power supply to have the Geek Squad test it for me.

What am I looking for? Any. Other. Possible. Solution.

As I said, I am going to test my power supply when I get time, and no, I do not have a spare one lying around/other PC to test it with.

Thanks fo... Read more

Answer:Power Outage.. now computer won't turn on

How did you flash the bios if it won't turn on?

Some surge protectors only work a limited number of times (I don't know why, I've just seen some that say it on the packaging/protector itself).

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Relevance 76.26%

I wasn't doing anything out of the ordinary, merely playing a game on my computer, when snap, the screen goes black and looses signal and the computer starts rebooting. It seemed to start rebooting normally, but i regret to say i stopped paying attention to the computer, and 30ish seconds later i hear it completely power off.

When i went to turn it back on, i got a flash of the blue case lights and all the fans twitched but it immediately powered off again. This now happens every time i try to turn it on. After getting the power flicker, i have to either unplug the computer or hold the power button for a few seconds in order for the computer to flicker again when pushing the power button. It's literally less than a tenth of a second worth of power before it shuts off, the fans just bounce back to thier same location. The green light on the mobo is always on while power is connected.

I've unplugged the hard drive and both cd drives, reseated both ram sticks, unplugged and replugged all the power cords to the mobo (A8N SLI).

Any ideas on what can cause this type of behavior is greatly appreciated.

Answer:Computer won't turn on. Only a power flicker

Hello and welcome to Techspot.

Sounds like your psu might have failed.

Try another psu and see if that helps.

Regards Howard :wave: :wave:

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Is there a way to have a computer turn on immediately once power is reaching the computer without having to press the chassis power button (ie. I turn on a power strip and the computer immediately begins booting)?



Answer:Turn On Computer Without the Power Button

The setting is usually in the BIOS.
It's common with servers.

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Relevance 76.26%

It's actually a little stranger than that.  I got a new power supply and case today.  I thought my old power supply had died so I replaced it.  The new PSU works fine prior to installation in testing.  However, the PSU will not turn on once I connect the motherboard.  There is a very real chance the motherboard is dead since it is old, but I want to make sure I'm not missing anything here before getting a new one.  There is no power getting to the motherboard at all, and once I disconnect the PSU from it, the PSU starts up just fine again.  Any ideas?

Answer:New Power Supply, But Computer Won't Turn On

Your front header jumper to the power switch on the front of the case is hooked up backwards...

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Relevance 76.26%

Hi guys.

I'm having an issue where the computer will not shut down unless I turn it off at the PSU/power supply (I've had the issue for about a month now).

Windows 7 will run through its normal shut down procedures, then the screen goes black, but nothing happens apart from the fans going really loud for a few seconds before they quiet down and nothing else happens.

The computer restarts fine, but does not shut down at the power button.

I suspect a faulty motherboard (Asus M2N68-CM - pretty old now), or maybe a service/process is not finishing after shut down.

Would greatly appreciate some expert knowledge on this one!


Answer:Computer will not shut down/turn off power

Could you do a shutdown trace by following this article: Gathering a Startup, Shutdown, Sleep, Hibernate, or Reboot Trace

Please download the latest Windows 8 SDK here, it works flawlessly with Windows 7: Windows Software Development Kit (SDK) for Windows 8

Once you run the setup, choose the install location, hit next and select ONLY "Windows Performance Toolkit" and click install. After this, you HAVE to restart the system, then follow the given tutorial.

This can help forum members and even me (I'm not much of an expert in analyzing these results ) identify if anything is stuck during shutdown.


There might be faulty driver or some bad setting in the BIOS. Try resetting the BIOS to the defaults.

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Relevance 76.26%

my fan will turn on

Answer:my fans will not turn on

"my fans will not turn on""my fan will turn on"Well, which is it? And which fan(s) are you asking about? Please list your complete system specs.

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Relevance 76.26%

I just build a computer from an old nlx motherboard, and now it won't turn on no beeps from the bios, but the fans do turn on when i push the power button. The wierd thing is that this happend before, but all i had to do was reset it and it was fine.

Answer:fans turn on but nothing else

normally, I'de say that your Video card isnt all the way in socket. You might also want to re-seat the processor and RAM. If that doesnt work, Ide try to test each part by putting it temporarily in another system to see if it works.

Good Luck

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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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I have an old computer that has windows millineum on it and when I turn it on the montior will not come on . What I would like to know, is can I connect this computer to my new dell and view it through my new computer.

Answer:when i turn on old computer display will not work

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When I turn on my computer once, nothing will happen, my mouse, keyboard, nor monitor will turn on. However, after restarting it 4 times using the power button, it works. It's not a huge problem, but I would just like to know if anyone has a solution or a possible solution? Note: It has not always done this, but has been for the past couple months.

AMD A6-5400k Dual Core
Nvidia GTX 750 1GB ACX
FM2A75M-DGS ASRock motherboard
Windows 7 Ultimate
4GB Corsair RAM (Unknown clock speed)

Answer:I have to turn my computer on and off 4 times for it to work

May be a power supply issue. Change it out...

4 more replies
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Good morning all, as the title suggests my computer will not shut down. I am presently turning it off by pressing the off button for 5 secs but I expect this is storing up problems for me. The latest thing is that links will not work, the icon chchanges over the link but the link does not opperate, including the windows update request? I am running XP. I have AVG and Adaware. I think it may be a setting somewhere but why did it occur in the first place? I am a merchant seaman and I am just back from sea, my son uses it while I am away so there is a possibility that has something to do with it :-). Any suggestions would be greatfully recieved.

Answer:Computer will not turn off and links will not work

mmm. The "click here" will not link as expected? it seems that some links do work but most do not.

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My friend accidentally spilt pop into his computer, it shut off, and he then proceded to turn the computer back on. The computer stayed on for a few minutes but then shut off. Once it wouldn't turn on anymore he asked if i could take a look at it.

I originally built the computer for him so I knew his specs and proceded to look at it.

The first thing I did was try turning it on and no go. I looked inside and checked the entire computer for burn / singe marks but I did not see any. I saw some pop residue here and there but it wasn't much, he said only a few drips got inside. He has a 140mm fan on the top of his computer the pop fell through and the fan splashed it everywhere. But I saw barely any pop.

I replaced the power supply with a brand new on and I'm still getting the same problem. I tested the hard drive in another computer and it still works. Graphics card looks fine and im assuming the processor is fine as well but I can't be positive.

Any ideas are welcome, im getting rather flustered.

Answer:Motherboard shows power but computer will not turn on?

I suspect motherboard is the first place to have a look at; because probability is it may be shorted and need replacement.

By the way in such situations, best course of action is to turn off the PC/notebook immediately and let it completely dry (may take a day or two depending upon conditions) before trying to turn it back on to give its maximum chance to survive.

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Have an issue with my computer not turning on. A couple of days ago it shut down on me in the middle of web browsing. It would not turn back on. I noticed my power button LED light stayed lit. I completely unplugged the computer, and then plugged back in. The LED light was now off. I then pressed power and it turned on. After 10 minutes, the computer shut off again. LED light came back on. I waited til the next day to try again but was unsuccesful. I thought that I had blown my power supply. I replaced the power supply with a new one and the computer would still not turn on. At this point, I am puzzled by what it would be. I just so happened to have another MOBO, and I swapped the two MOBOs and still nothing. There is a small square light on the MOBOs themselves that come on when the power supply is connected. Not sure what it means.
Since swapping the MOBOs didnt do anything, I bought another CPU. After installing it, I get nothing.

I really need to get this fixed fast. Any suggestions? Why would the power LED light stay on. This is happening with both mobos.

Its an Intel 865PERL mobo with an Intel Pentium 4 HT processor. Socket 478

Answer:Computer will not turn on, power supply is brand new

call the company

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I'm going over there in a few minutes, I plan to check for burn marks, he said the green light still comes on in the back(psu probably). So I am thinking the psu is fried or some other component in which I can hopefully visually see.

Ok heres the plan'
1. Check for burn marks or blown capacitors
2. Swap the psu with a known working psu if no burn marks can be found

Just thought I would post before I took off so I can refer back here if I hit a brick wall in case someone has a suggestion.
OK its been fixed its a common problem with hp pavilion power supplies for future reference

Power outage causes computer to not turn on and green light flashes on the back of the psu.

Solution, unplug psu then motherboard p1 connector, wait 5 minutes until green light stops flashing. Plug the psu back in and it should now have a solid green light on the back now plug in the p1 mobo connector. Yes with the psu plugged in first as said in order.

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Hi everyone! Recently did a reinstall of windows (yikes, what a pain), recently did all critical updates and installed SP2.

Now, when I attempt to shut down and select "Turn off Computer" from the start menu it no longer powers down completely, it gives me the "It is Now Safe To Turn of Your Computer" screen,,,,ugh!!

I've not messed with my bios....APM is enabled.

I've gone into Power Options and selected to not enable hibernation and I've selected Always On power schemes with all options to never.

By the way, before the install of SP2 it would shut down normally, please help so I don't have to use the power button!!


Answer:XP Won't Power Off When I select "Turn Off Computer

You can go here:
Scroll down to #76 and click on the word "Off" ,when the file download box opens up,click Open.

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When I turn on my computer it says enter power on password

Answer:When I turn on my computer it says enter power on password

@Buddyreid11 When asked for the password just hit enter 3 times. Post any halt code you receive. REO

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Tried to start computer after downloading update previous night.  It came on and ran through updating sequence, then monitor went crazy with broken blue lines.  Would not accept input from keyboard or mouse.  Used power button to shut down.  Now when I try to start the computer, the power light comes on, but monitor shows searches for signal, then displays "No signal" for any of the input options, then goes to sleep.  Tried the monitor with a different computer and it works fine.  How do I get this thing on!?!?!?! Thanks for any help you can provide!

Answer:After recent update, computer will not turn on, though power...

Hi @bigjer1948,I hope you enjoy your visit to the HP Support Forums. I understand you are having an issue with upgrading to windows 10. I will be glad to help you. Please look at Recovery options in Windows 10. Please keep me informed of how things went. If you require further assistance, let me know and I will gladly do all I can to help you.Please let me know if this resolves the issue by marking this post as "Accept as Solution".To simply say thanks, click the Thumbs up below!  Thanks. 

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I have a Gateway 700x or something like that, I bought it back in '03. A week ago I went on vacation and booted down my computer (or thought I did), anyway when I came back and went to turn on my computer the power light was orange (which usually means sleep mode) so I held the button down to power it down. It wouldn't shut off, no fans or anything or going though and if I hit buttons on the keyboard it doesn't boot up either. - It's like it's stuck. I tried unplugging my computer but whenever you plug it back in, the light comes on orange and stays that way. I tried the test button on the PSU but that didn't do anything.
After reading a couple posts here, I replaced the internal battery and also the PSU. Still no response and the light is still orange. I tried the test button on the PSU and it started up the fans and what not but still can't get it to boot up.
Since my computer is kinda old I'm not sure what's going on with it and if it's worth trying to take it to a repair shop or to just buy a new one and slap my hard drive in it.

Answer:Computer won't turn on, yet power indicator is orange

When you went away on vacation did you actually unplug the PC?

And when you have tried to boot up the PC how long have you left it plugged in but not attempted to turn the PC on?

It is possible that leaving the PC plugged in for a day (say) before attempting to boot might be all that's needed.

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After my power went out for a second my computer didnt turn on anymore. Every time I press the power button the case fans and cpu fans turn on for a sec then turn off. The ethernet slot light turns on if that matters. Also I tried turning it on without the graphics card and ram connected and still the same results. Whats wrong with my computer??

Answer:Computer doesnt turn on after power outage

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When I push my T400's power button, the laptop no longer goes into hibernation. I have already tried the following:-Checking the power button setting in Windows (it's set to hibernate)-Holding down the button for a while (if I keep holding it down, the laptop does a hard shut down) What can I do to get the power button to work again? I've also tried using the dock's button; the same problem occurs with that button. What can I do to make the button work? Extra Context:-Windows 7 32-bit Edition-No obvious power-related event log warnings or errors

Lenovo Stuff: ThinkPad T400 (2764CTO) + Advanced Dock, ThinkPad T440p + Ultra Dock, assorted batteries, screws, and nubs

Answer:Power Button Doesn't Turn Off Computer

Does Fn+F12 still work?

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

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I just reformated my old system to install fresh Win2K, got all the service pack updates and just found out when first turning off the system I have to push the power button just like using Win95 or AT motherboard. I look in the bios, old DELL computer, it doesn't have the "soft off" feature.

One thing I notice in the bios is I didn't turn on the Plug and Play OS, set it back but nothing changed. How to fix this problem? It's very annoying when I have to wait Win2K doing the routine to turn off and have to push the button when the message "It is now safe to turn off your computer".

Answer:Need to push the power button to turn off computer

There is a setting in the BIOS setip to enable or disable ACPI support. If enabled, Windows should install as an "ACPI Uniprocessor PC" (look in Device Manager) and will handle IRQs automatically. Shutdown also works the way it is supposed to.

If ACPI is disabled in the BIOS at the time Windows was installed, the CPU will show in Device Manager as a "Standard PC", IRQ assignments can be modified by the user, and Shutdown doesn't really work. You just get a "It is safe to turn off your computer" screen.

Unfortunately, enabling ACPI support in the BIOS doesn't work after Windows is installed. You have to change the HAL (very tricky) or reinstall Windows.

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I have recently bought a new Asus machine running Windows 8.1.

I have set my own custom plan for power settings in the control panel and have that selected. However when I turn the computer off then later turn it back on, the power plan has changed. It seems to do this every time. But it's usually one of the ones preset by Asus (Power4Gear).

Any ideas and help would be really appreciated!

Answer:Power Plan changes each time on turn computer on

maybe a program with automatic startup is changing it.. what does it always change back to??
**EDIT** oh i guess you answered that.. yes exactly see, its a program switching it for you.. so start looking into your startup and services to see what is set to automatically start..

do this by command prompt and then typing "msconfig" and then "services.msc" and then press "Ctrl, Shift, and ESC" and look at (startup tab)

*old* for example i have samsung magician installed on my machine and that created a samsung power profile and luckily it hasn't so far, but it could somehow set itself to always use that power plan if i wasn't careful in choosing my settings correctly when i installed it.. etc..

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When turning the computer on I press the power button, the light on the button comes on and the fans etc start for a few seconds. Then all goes completley quiet and the power light goes out. I have to press the power button for a second time to finally start the computer. It has done this from new. Kind Regards,Margaret

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Today I switched on my computer and it wouldn't turn on. I had a feeling that it could be something wrong with the power supply, so I took it out and connected it to another computer and it did not work on this other computer either! However, the motherboard light turns on when the power cable is connected to the power supply.

Would this mean that it is or is not the power supply that has broken?

I was thinking that it could be my front panel connectors that could be causing the problem but I'm not sure after I tested the power supply on the other computer and it wasn't working either.

Many thanks for your help.

Answer:Computer won't turn on! Power supply broken?

If the power supply fails to operate on two different computers you can be pretty sure the power supply needs to be replaced.

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It goes through the motions then returns to desktop of whoever is logged in.
Is there a setting I have missed somewhere? as I have been all through the main settings.

Answer:Why doesn't the power/shutdown turn the computer off?

We're going to need a bit more information to be able to assist with this particular issue. Please register for an account, then return to this topic and give us the following information:
1. What is the make and model of your computer. Manufacturer name? Model Number?
2. Was this an upgrade to Windows 10? If So, what OS was it upgraded from?
3. Do you have any 3rd party Antivirus or Firewalls installed? If so , what are they?
4. Is this an OS that is NOT Windows 10. If so, then please provide the name and version number of your OS.
Once we have that information, I can rule out if it is a hardware issue or configuration issue. It sounds like a hardware issue, but it could be a software conflict.

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Hey guys,

My computer was working fine at home, and I had to move it into school. So, I put the computer in the car and brought it to school. There wasn't any sort of bump or anything that could've damaged the computer, but for some reason the computer won't start up.

When I push the power button, all the fans (including CPU) start up, the LEDs of the computer turn on and everything looks good for about 2 seconds, then the computer shuts down. I tried unplugging peripherals from the power supply, and nothing seemed to work until I decided to unplug the Mini ATX power cable (the four pin cable that plugs directly into the mobo, correct me if this isn't the mini ATX cable), and then it stayed on for awhile. Of course, since that cable wasn't in, my video card wasn't powered, so there wasn't much that happened.

Is this a motherboard short or a power supply short? I don't have another power supply handy to try and fix it, and I was hoping I could get a response as to what is most likely the culprit here.

Thanks in advance.

Answer:Computer won't turn on with Mini ATX Power Cable in

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This is my sister's cpu i'm talking about so i have no idea if there was an error message before the following happened:

She was booting the computer and it just shut off. There is no response from the power button. Yes all the cords are plugged in inside and outside the box. The computer is kinda old, has had major problems with XP, so is back to 98. PII 266, 312 MB ram, GeForce 2 video card, 2 WD hdds. On a possibly related note, the problem with XP was that the registry was corrupted every shutdown. Could this be an issue with the mobo? I know the ram is good, and the power supply seems okay.

Another mobo-ish issue: The comp will only go past bios loading area with 2 devices on IDE 0. It hangs as if there is no hdds in it if there is only one. Yes i checked the jumpers and such. Either hdd on IDE 0 fails boot if there's one, but passes whether it's master or slave if both are in.

Any help would be appreciated.

Answer:Computer Will not turn on (no response from power button)

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So while I was at work my wife called and said the computer will not turn on. She says that our daughter plugged a usb cable into it in order to charge a PS3 remote. The computer was working at this time. She removed the remote later and used it. Upon trying to use the computer later it would not boot at all. When you press the power button nothing happens. No fans spin, no lights come on... nothing.

I removed and tested the power supply via the safety pin method and it is working. I put a brand new power supply in any ways which was also tested. I next replaced the power switch button (not the full cable) and it still does not come on. I noticed after this that my motherboard has an on/off power button and reset built onto the board. Upon pressing this button nothing happens. I built this PC myself less than three years ago and have not had any hardware problems till his.

Do you think my motherboard has suddenly failed? Do I need to replace it? I don't think it is a grounding issue as the computer has sat in the same spot and worked since I've had it till now.

Motherboard is an ASRock P67 Extreme4 Gen3


Answer:No power to computer. Won't turn on at all. Working till the other day

Still sounds like a power supply issue to me. Were you actually able to test the voltage from either or both power supplies? If not i would try and test the voltage to see if its putting out anything. Short of that it does sound like it could be a possible motherboard issue. Also; when you say your daughter plugged in a usb cable to charge something do you mean she plugged a controller in? because the ps3 remotes for the blu ray part of the ps3 does not have a usb port on it to charge batteries. It just uses normal aa batteries.

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Going crazy...please help.

I built my new computer tonight, however it won't start. There is power to the motherboard, because I can hear and see the fans when I turn it on, however the CPU fan doesn't move. It initially spins a rotation or two and that is it. It (fan on CPU) does the same thing when I power it off, just a initial spin but doesn't move. Any ideas...I would be so grateful. Here are my system specs (all bought from Newegg)

Intel Core 2 Duo E6750 Conroe 2.66GHz LGA 775 65W Dual-Core Processor
GIGABYTE GA-P35-DS3L LGA 775 Intel P35 ATX Intel Motherboard
Rosewill RP550-2 ATX12V v2.01 550W Power Supply
4stick of - G.SKILL 1GB 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400)
APEVIA X-JUPITER-JR G-Type X-JPJGT-BK Black SECC Steel ATX Mid Tower Computer Case

Thanks so much!

Answer:Built new computer, normal fans work, but CPU fan doesn't spin, board wont power

Sounds like a power supply problem, or a error in connecting a cable. Thus the shot spin of the cpu fan. But usually you just missed something too obvious to think about.
Reseat all cables. Reseat all memory modules. Then try it with one or two memory modules at a time. Then switch to the others.
Check your CPU for proper seating, and possible bent pin.
When no longer frustrated, think through everything you have done in the setup, even the heat sink and thermal paste.
We have all gone through this. We know has exasperated you must feel.

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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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Ok im running windows xp home edition on a hp pavilion. The fans, dvdrom, and hdd turn on, but the blue light to show the cpu is running doesnt light up, and the computer doesnt boot up, the screen stays blank, and the computer makes no noise to signal its running. I would really like any help with this matter. Thank you.

Answer:Fans and dvdrom turn on, but nothing else.

The blue light shows hard drive activity not CPU actions.Open the case after removing all power sources and make sure all drive connections are snug.Be careful in there and pay attention.

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I have to hold in the off switch to get it to shut off. Is this a CPU or Motherboard pblm. and how would I determine which it is ?

Answer:when I turn on puter fans run but nothing happens.

Hi relee_1, welcome to TSG.

It could be a variety of things......can you give us some history on the problem? Is this a new machine? Did this just start happening out of the blue.......have you been inside the case playing around with anything?

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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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Hello, I have put a new motherboard, power supply, and processor into a computer. The first time I turned it on with all peripherals plugged in, the fans stayed at max speed and it eventually shut down. I unplugged all peripherals except for the DVD drive, and then replaced the power supplie again and and the cpu has a temp of about 124 and the fans still stay at max speed, has not turned off yet.

Any Ideas??

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Here's what has been happening:
PC won't POST. I can't get to Windows or even the BIOS.
This has been an ongoing, intermittent (on/off) problem which seems to have now become permanent.
There are no beeps when powering on.
I replaced the PSU with a new CoolerMaster one in an effort to resolve the issue. No luck.
I've unplugged almost everything from the motherboard and tried powering on, which includes:
RAM (2 sticks: 4GB, 2GB)
Peripherals (including, embarrassingly, the Power button...)
Mobo fan (which is the one that wavers every few minutes)
The only items I did not unplug/disable are the CPU fan and any onboard ones, e.g. integrated graphics.

Some history now:
The PC has been having this problem for some time now, i.e. months. Eventually, it would POST and then go to Windows until Friday. Now, it just sits trying to POST. The motherboard fan will waver from slow to fast every few minutes. (I timed it and the wavering has no exact pattern.)

Side observation:
When removing the 4 gigs of RAM, leaving only the 2 gigs, PC freaked out and turned on and off several times before finally POSTing and going to Windows normally.

Today, I removed the CMOS battery for quite some time, maybe an hour or more. The PC was unplugged when removing it and after so I hit the power button. After popping the battery back in and turning back on, I still get nothing.

Can I turn the PC on with the CMOS battery removed? Do you think it would help ... Read more

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How to find computer turn on time off time. I want to know during last month how many times my computer was turned on , when it was truned on & when turned off.

Answer:How to find computer turn on & turn off time

Have a look in the System event log. Normally a few events are logged at shutdown and startup.

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I use my laptop for school and, by keeping it on power saving mode, usually get through two school days without charging my laptop. Ever since I've downloaded Windows 10, (1) my computer doesn't shut off all the way when I close it, which drains the battery, and (2) every time I charge it, it turns off the power saving mode, which is really annoying. This is especially annoying when I don't notice it isn't on and my battery drains even faster. Is there any reason it won't turn off? Is there a setting I can use to keep the power saving mode on at all times?

Answer:Why won't my computer turn off all the way and why can't my computer stay on power saving mode?

Your system might have a virus, try to scan using Malwarebytes, Superspyware , Trojan-Killer. Restart your system then try to download Hitman Pro then Run it. Then optimize your system using Ccleaner. Hope this would help.

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Hey guys, I just built my computer. When I shut down my computer and turn it back on the next day. I get a blue screen saying "Check to be sure you have adequate disk space."

I notice that when I shut down my computer, I need to turn off my power supply and the next day my computer will work. I must have did something wrong. Can anyone help me?

System Components:
Asus P7P55D-E Pro
Intel Core i5-750
Noctua NH-U12P SE2
XFX Radeon HD 4890
G.Skill F3-12800CL7D Eco 4GB DDR3-1600
Western Digital Caviar Black 1TB SATA2


Answer:Need to shut off my psu and turn it back on to get my computer to work

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I'd greatly appreciate some help, please, to reverse something I think I caused.

My Windows XP SP3 laptop will no longer turn off using Start / Turn Off Computer;
computer will neither turn off or restart.

This started while I was freeing space on my laptop, during which I did both
some Remove programs from Control Panel, and manual file / folder deletions.

Was freeing space getting ready to look into why new, blank DVD-R discs are
reading as having 0 used and free space, on Toshiba DVD-ROM SD-R2312, which
reads 'used' discs correctly.

Answer:Solved: Start / Turn Off Computer won't work. Now I DId It.

Goto Start

Select: Run

Type: "Cmd" to enter the command prompt

Once inside the command prompt type "Chkdsk"

let it complete the scan for any errors if it comes across any paste them here , or use the fix option if given.

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I don't get this power button - I've set it to turn off the computer in Power options in Windows 10, but pressing it does nothing! I have to hold it for few seconds to force system to turn off but it won't turn off normally on a normal short press. At least, it does turn on the computer though.

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