Computer Support Forum

No Power, Blinking green light on power supply and motherboard

Question: No Power, Blinking green light on power supply and motherboard

I have a Sony VGC-RB42G computer. I recently moved my computer, cleaned off all the dust, and when I plugged everything back in, it won't power up. The light on the power supply blinks green, inside the motherboard also has a green light that blinks as well. It has a ticking sound too, but I am not sure if it is coming from the power supply or the motherboard. Any idea what could be wrong.

FYI, I have already unplugged everything from the power supply, pulled out the ram, checked the battery, and put everything back together and still no change. One thing I thought was strange was after I unplugged everything, I pulled the power into the power supply again and this time the green light came on but did not blink. It stayed solid.


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Preferred Solution: No Power, Blinking green light on power supply and motherboard

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Answer: No Power, Blinking green light on power supply and motherboard

Sounds like a Power Supply problem.

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hi guys
as per one of my friend I could replace my memory (RAM) up to 32GB, so I've ordered a couple sticks of Kingston HyperX so I've took slot 1+2 and replaced 2 4GB Hynix RAM by 2 8GB HyperX...
Now I have a good old CPU that doesnt work plus it smell like burnt plastic with no apparent damage to the board or RAM... 
Startup: 2x BEEP (No BIOS)Motherboard Light: Solid AmberBootup Light: Flashing AmberPower Supply Light: Solid Green
I've tried booting from  a single RAM unit on slot one then slot two, and nothing has changed... anyone can help?
Motherboard: 0Y2MRG i7 2700Primary: SSD Kingston HyperX Savage 240 (added)Secondary: Seagate 1.5TB + 2TB (added) Barracuda (7200)New RAM: ts/HX316C10FK2/16 RAM: HMT351U6CFR8C-H9

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I am working on a frends desktop that recently might have been hit by lightning. After a big storm their desktop would no longer power on. Now, I am no stranger to computers. I unplugged the motherboard main connector and I get a solid green light when I plug the psu in. Plug the main connector back in and plug the psu in I get blinking light again. So either its the PSU or mainboard. Im thinking psu since usually that is what goes first, but at the same time I am leaning towards mainboard. what do you all think? On another note, Are these boards proprietary? I have a few standard ATX PSUs I could test my theory with but not if I have to rewire them.

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Hello, I the power supply light of my Media Center m1050y is blinking and the PC does not turn on at all. So I tried the troubleshooting sequence posted here in the HP Support site, and after unplugging all the cables and replugging them one by one, it turns out that the light blinks only when the PS is connected to the mother board (the connection is a white, wide plug with about 12 pins - pardon my ignorance on the actual name). I looked on the internet about trying to narrow the cause on the motherboard and I unplugged the front USB ports, the fan, and other "solutions" without any luck. Does this mean the motherboard is fried and either I need to replace the motherboard or look for another PC? Thanks!

Answer:Power Supply Light Blinking When Plugged to Motherboard Only

What troubleshooting sequences did you try......was it this.   Suggestion: get a hair dryer, and use it at the rear vent. See if the light stops flashing. Read about the hair dryer tip here.

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I picked up this Alienware 5700 off ebay to hopefully refurbish for my son but I'm new at this and still learning and so this thing has me baffled. The laptop is in pristine condition but shows no signs of life. When I plug in the power supply the green light on the power supply goes from solid green to blinking rapidly to the point you can barely see it. To me that would mean a short somewhere right ? If so where ? Has anyone else ever had experience with something like this ? I just don't want to go buying a new battery for a laptop that maybe fried already. Any help would be greatly appreciated.

Answer:No power, no lights but green light on power supply blinks rapidly

Remove the laptops battery and try the AC power only. If the green light does the same, it still could only be a bad AC adapter, or at worst, a shorted laptop motherboard

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I have a Dell Dimension E510 that as of yesterday, won't power up anymore. The power light blinks orange and the computer does nothing when the power button is pushed or held in. It's about 16 months old and is out of warranty, so I'm trying to diagnose the problem myself.

I did some searching on the internet and found that this seems to be a common issue on these Dells, sort of a long term infant mortality issue. The most common causes seem to be a bad PSU, MOBO or a shorted USB input.

I've done some diagnostic checks/testing so far and am now stuck. Here's what I know.

- The USB ports don't appear to be shorted. I also disconnected the connector for the USB (which includes the power switch :banghead and it doesn't change any of the results that follow.
- I removed the power supply and jumped Power On (terminal 14, green wire) of the main ATX connector to ground. The fan comes on and all voltages (3.3, 5 and 12v)check out, including around 5.35v at Power Good (terminal 8, gray wire).
- With the power supply back in and everything connected, there is only 3.3mv at Power Good. As I understand it, this would normaly point to a bad power supply; however, all of the voltages check out when the unit is disconnected from everything.

Is is still possible that the power supply is bad, or is it more likely (or definitely) that the MOBO is the culprit.

Any help, including suggestions for additional testing is greatly appreciated.


Answer:Dell desktop won't power up - blinking orange light - power supply?

Dells have four lights in the back. What color are they?

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hi i just upgarde my hard drive when i plug the power supply back in then go and turn it on it it dose not come on there a bule light that comes on that's it. there olny one fan stay on and the other one come on then gose back off

Answer:desktop won't power up - blinking bule light - power supply?

What is your computer hardware specs?

Try disconnecting that new hard drive out, it may be hanging up on that.

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So today I was just watching a YouTube video, not gaming, not doing anything too intensive. Suddenly my computer shuts off with the power button blinking green. No BSOD, just powered off and won't turn back on. I tried unplugging the power cable and holding down the power button for 30 secs with no luck. My computer is pretty hot idle at 60 degrees Celsius. But it's been this way for years with no problem. Could something overheating just by watching a YouTube video? When a CPU overheats it goes into blue screen right? So it can't be my CPU. I have a cooler master PSU. CM is a trusted brand. And I also have an MSI motherboard.

Answer:Computer randomly turns off with green blinking green light on power

Doesn't necessarily mean the screen will blue out because of heat problems mate run the BIOS and post back the readings for the CPU temp (seems a tad high to me for idle) and the CPU fan speed.

The other thing to do is check out the PSU as well via these
PSU - Jump Start

but try the BIOS first and if you do the PSU stuff DO NOT attempt to open the device itself you just need to measure the volts on the leads. However volts does not necssarity mean enough current (amps)

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So I hooked my pc up after I took it w/ me to work becuase I though I was going to a lan tonight. But when I came home and plugged it back. I noticed the power supply box light was blinking. And it wont turn on. No power or what so ever. I need help BADLY


Answer:Power Supply Light Blinking. No Power :(!

Have you opened case to make sure all connections are secure? Something may have come loose while you were transporting it. Give us more info about your computer (e.g. make and model, cpu, ram, name of psu, etc.)

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My Lenovo 11e Chromebook will not power on. The power light blinks orange and green over and over. I've tried all the resets and even put a new battery in it. What could be causing this? Thanks,

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I have a problem. Moved computer to another location in my home and the power supply was blinking green and the computer would not turn on. After reading some posts online, while the power was connected to the computer, I pulled the main power plug to the motherboard. After doing this the green light was not blinking anymore and was solid green. While power was still applied to the computer, I reconnected the power plug to the mother board and the light stayed solid green. Pushed the power botton computer now started up properly, And by the way this is a Compaq Presario Media Center SR2020NX Desktop PC with xp pro, what would make the computer do this? Next time i unplug from the wall plug i will be in same boat. Thanks.

Answer:Solved: power supply blinking green

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I have a problem. Moved computer to another location in my home and the power supply was blinking green and the computer would not turn on. After reading some posts online, while the power was connected to the computer, I pulled the main power plug to the motherboard. After doing this the green light was not blinking anymore and was solid green. While power was still applied to the computer, I reconnected the power plug to the mother board and the light stayed solid green. Pushed the power botton computer now started up properly, And by the way this is a Compaq Presario Media Center SR2020NX Desktop PC, what would make the computer do this? Next time i unplug from the wall plug i will be in same boat. Thanks.

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All in one won't start. power supply light is green but when conected to computer it goes off or start blinking very dim. comp won't start or make any noise. I brought a new original power supply and the same situation.

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I am new to this excellent forum and wondered if anyone out there could possibly help......

I have a Dell Optiplex GX620 Desktop PC. Several weeks ago I had a slow flashing amber power light, indicating a PSU or switch fault. Firstly I replaced the switch - made no difference. Then I replaced the PSU - The slow flsahing amber light has now changed to a blinking (very fast) GREEN light on the power button.

All of my research so far has suggested that this suggests the PC is in standby mode! But the PC isn't even switched on - no fans running etc. In desperation I have even plugged a USB mouse in to see if I can "wake" it up! I have a amber AUX_PWR light on the Motherboard which is on.

Nothing happens when I press the power button - no matter for how long I press it in!

Has anyone got any ideas?

Many Thanks in advance

Answer:Dell Optiplex GX620 Blinking Green Power light & won't start!

Welcome to Tech-Forums, lardy2001!!

Do diagnostic lights display anything? It's those 4 lights I believe that's located at the back of the computer.

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Answer:laptop will not turn on have green led light on power supply...

please help if u can thanks

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My mom gave me a Dell Dimension 4700 computer that was acting up. She said it would turn it's self off randomly and she thought it was a virus. When I brought the computer to my place, it powered on once, then I went to turn it on again and nothing. No lights, no power what so ever. So after doing some research I bought a new power supply for it. I just replaced the power supply and plugged the computer in and now there is a blinking amber light in the front and a solid green light on the motherboard but it won't turn on. I have checked all of the connections and they are properly seated. Any ideas what is causing the problem?

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Hi, i recently bought a new computer and decided to give my parents my old one. Before doing so, i took the side off and blew out all of the dust. I also took out my video capture card since they wouldnt need it. Well, after all of that i hook it up for them and it wont come on. I check out the back of the PC, and the power supply light is blinking. After some unplugging and plugging in of the power cables from the power supply, i notice the light starts blinking(and clicking) when i plug in the motherboard.I figured maybe the heat sinc had came loose from the processor after reading some possibilities online and figured i could just but some thermal paste and redo it myself. After applying new thermal paste and getting everything set, i try the computer again and its still doing the same thing. Im frustrated at this point because before i cleaned it out, it worked great.Since i was able to narrow it down to the power cable plugging into the motherboard, i figured i would mess with it a little. I noticed that as soon as i started to plug it in the light would blink but when i would pull it out and it stopped. Then the next time it would go further before it started to blink. After removing it and plugging it back in i was able to get it to plug in without the light blinking. The computer powers up, works as if everything is fine. I can even shutdown the computer and the start it up days later without issue.Now for the problem. I was plugging some stuff in earlier and hit the ... Read more

Answer:Blinking Power Supply Light (kinda long)

Welcome to the CH forums.Yes, a kinda long post which describes the problem in detail but...  doesn't give us any details of the pc, the power supply model, the motherboard etc.. etc..   not even the color of the flashing light...Please read this article...

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My sister-in-law has an eMachine that she turned off and unplugged before leaving for vacation. A week later she returned and plugged it back in only to find it won't turn on. I don't know much about this pc other than it's a tower and about 3 or so years old. I figured it was probably the PSU (power supply) but wanted to verify as many things as possible. Basically, there is a green light on the back of the pc (on the PSU) that will flashes on and off when you try to turn on the computer. The PSU fan doesn't spin and nothing else makes any attempt to turn...just dead.

I pulled all the power connectors and jumpered the power switch pins (15-16), this gave me a solid green light on the PSU and the fan spun normally. I tested with a voltmeter and got the proper voltage on all the pins. I am thinking that this probably rules out the PSU but not 100% as something could be 'pulling it down'???

Any ideas on what else to look at? I hate to buy a PSU when it appears this one is ok. That pretty much leaves the MoBo and/or CPU. I've pulled all the cards and memory trying to get it to do anything and nothing affects it. I suspect there is something wrong with the MoBo but don't know how to verify that.

Any help or advice is appreciated. Thanks!

Answer:eMachine power supply (PSU) green light flashing, won't turn on

What you need is a PSU Tester which you can get on eBay that will tell you if the power supply is bad.

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hi people this my fist time on here so i hope some 1 can help .....i got a emachines 3210 pc and it was working fine .went to turn it on yesterday and got no power but i got a green light on motherboard i really need to get this sorted as i borrowed the pc off a m8 and i dont really want to folk out for new bits . it would be great if some 1 has anyidea wat it could be.other wise its off to bank get some money and get a new motherboard lol.... oh i got a 2.70ghz celeron processor if that helps in any way cheers

Answer:No power to PC but I get a green light on motherboard

The eMachines power supply (and possibly the motherboard) is bad. Just because you have a green light, doesn't mean that the power supply or motherboard is good. It takes many separate voltages to operate a computer. The geen LED means only that you have +5volts to the motherboard

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We got a Compaq Presario S6500NX from a friend who had upgraded to another computer and we can't get it to work. It ran fine before he brought it to us, however, once we got it here and tried to power it up it wouldn't start at all.

On the power supply in the back the green light blinks and clicks rapidly when the cord is plugged in, and pressing the power button does nothing at all.

Interestingly, a few minutes ago I took it out of storage, (we got the computer months ago and gave up when we couldn't get it running) plugged it in by itself and it powered up just fine, the fan turned on and everything! So I opened it up and cleaned out some of the dust (I didn't have it plugged into a monitor or anything, I just wanted to see if it was still doing the same thing it had months ago) and, lo and behold, when I tried to turn it on again with everything plugged in, I got the blinking/clicking green light and no power up.

What could be the problem here? I know the whole thing isn't totally shot because it DID power up just fine a few minutes ago. But now we're back to the blinking clicking light (instead of the steady green glow that usually happens when the power supply cord is plugged in). It leads me to believe that something's loose, but I don't dare mess with the power supply box unless I know what I'm doing...

Another question is, if the power supply isn't fixable, would it be possible to replace it with the power supply ... Read more

Answer:Solved: Power supply light blinking/clicking, computer won't turn on

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I just recently Inhearted a computer from school, after my IT teacher couldn't get it to run. Both my IT teacher and I thought for sure it was the power supply or the power switch. The Problem is that the computer dosn't do anything at all when you press the power button. My teacher told me that when he first started having the problem he would press the power button, and maybe Once out of every fifty times it might boot up. then the problem got worse, and only started like every 100th time, now it dosn't work at all. The system is a Used MDG with a 1.5GHZ cpu, and mostly all stock parts. The system came with a stock 300 watt PSU. When I first took it apart, I pulled out the power supply completely, and tried to put in another one, that I had laying around, however it had the wrong connector, so I just put the old one back in. when I put the PSU back in, it seemed to have power, as I could hear the electricty following thorugh it, and a green Led light would light up on the mother board, however if I pushed the power button, it would still do nothing, the CPU fan wouldn't even turn. The only time I actually notice the CPU Fan do a quick turn, is if I disconect the power from the PSU for a long period of time, then reconnect it. So I went to the local computer store tonight with the switch, and the man tested for me, and it did end of being a faulty switch, so I purchased I brand new. I then put it into the computer, and still nothing, and believ... Read more

Answer:Computer will not boot up, Power supply shows green led light on mother board

computer won't boot

I think youve got a bad psu. I've had a similiar problemand replaced the psu. Check the voltage outputs and if not in range replace it. twildet

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During a recent storm, lightning struck very close to my house and we lost power immediately after the lightning strike. Once power was restored, my HP Pavilion a6000 would not re-start. The computer and all the peripherals were protected (I thought) by two surge protectors.

On closer inspection, I found that the green LED on the power supply was blinking. I disconnected all the connections coming from the power supply, and when I did, the green light went from blinking to steady on. I re-connected the leads one by one, and the light stayed on until I connected the 20 pin connection to the motherboard. As soon as I connected the 20 pin lead to the motherboard, the solid green LED went back to flashing.

I assume from the diagnostics that something on the motherboard was fried by the lightning? I know how to replace a power supply, but have never dealt with motherboard issues, so not sure how to proceed. The computer is only 6 months old and I would like to save it, but don't know what I might be looking as far as expense and time involved to repair.

Any help you can provide would be greatly appreciated.

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My Inspiron 15R N5110 won't come on. I've tried both battery and 2 different ac adapters. I've removed the battery, unplugged it, and held the power button for 30 seconds to discharge the system, but it still won't come on.
I took the laptop apart and everything looks alright, but the DC jack was slightly brown on top so I replaced the DC jack board. It still won't work.
I made sure the connections are tight (the DC jack and other USB board) by screwing them down. The only thing that happens that shows any life is when the battery is in. The power button, power indicator light in front, and the little "gears" light blink white for just a moment, then off, about every 5 seconds.

Any ideas? If I have to replace the motherboard, what is the difference between 0G8RW1 and 0VVN1W? I'm not worried about the product key not validating - may even put Windows 8 on it.

Answer:Inspiron 15R N5110 - Will not power on, blinking white power and gear light

Hi brockalee,
Both the Motherboards 0G8RW1 and 0VVN1W are compatible with this model and there is no difference. 07GC4R is also compatible with this model.

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i have tried to power it up with power ac plugged in and without. on/off power button flashes white.
battery is inside "sealed" and may be difficult to access.
ran fine yesterday, shut down with 20% battery life.

if the ac plug is unplugged then i can get the led to turn off but once pushed, it ony flashes. no results

warranty is expired.
unit manufactured april 23 2015

i currently have it plugged in but no flashing light as i have not pushed the power button. im hoping that it will take a charge or correct itself with time.

what do you suggest? thank you

Answer:i have a lenovo edge 15 model80k9. led power light is blinking but computer will not repond. no power up . the battery is "s

Try the following...

1. Take out (or take it off) the charger.
2. Next take out the battery
3. Now hold down power button for 20 seconds and then rinsert battery.
4. Now put it on the charger again

NOTE: Make sure charger is plugged into the main power supply (not an extension cord, surge protector, etc.)

Sometimes, when the device is not plugged in directly, it doesn't get the power it needs. Holding the power button, while you restart it, clears out the temporary ram (no it won't delete anything you have saved) and will give the device access to the ram it needs.

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Hi Recently my Y580 started acting strange:While doing normal work it's rock stable and everything but when i turn on anything that demands high system performance (i.e. games) the whole system starts to go haywire - fps drop to minimal values, the power button led starts to blink and windows detects the computer as disconnected from the power supply. If i disconnect and reconnect the power adapter it works for a few seconds and goes crazy again. I have allready ordered a new power adapter since the old one is falling apart anyway but i wont get it till Tuesday.Any ideas are welcome - i feel comfortable about taking the whole machine apart if it helps. Now that i think of it i remember that the chasis shocked me once or twice recently - damaged power cable between power socket and motherboard? Thanks in advance


Go to Solution.

Answer:Y580 Blinking power button led and power supply turns off

How many watts is your power brick rated at? I had a similar issue when I used a brick from another laptop. It had the right voltage and the same plug, but it was delivering less power than the original one. When doing basic office stuff it was working fine and charging the battery, but when gaming it would work fine for 2 minutes and then display the same symptoms as your Y580.
Hopefully you ordered the right, more powerful brick. I think the right one is rated at 90W, but I'm not sure.

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I shut down my Pavilion Elite for 1 week while away and now it will not turn on. The power supply light is on, I replaced the CMOS battery and the power switch is ok.

Answer:Pavilion elite power supply light on, won't power up

As you did not mention any message or display on the screen, I would use this tutorial for a step by step diagnostic.  It also helps to remove the side panel, and visually watch the CPU and rear case fan movement(s).  As you press the power button, pay attention to the fans. Also does the Power Supply LED stay ON? Or did it go OUT when you pressed the power button?  

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Hi. Tonight I had a problem with my laptop. It was in sleeping mode, and when I open the lid there were no mouse function and no touch screen function. So the only thing I could do was to press the power button for 3 seconds to turn it off, but it didn't completely, because the screen turn off, but the power button light is blinking just like when it is on sleep mode, and I'm not sure if the hard drive light was on, off or blinking before this, but now is blinking. I press the power button and nothing happen, I press it for 3 seconds and nothing happen. I even did the HDMI connection to another monitor, but both monitors don't show anything, not even recognize that something is connected to the HDMI port in the new monitor. There is no sound, nothing, just the 2 blinking lights. What should I do? Thanks PS: I'm not sure if it's Windows 10 32-bit or 64-bit. It was upgraded from Windows 8

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The green (power) LED on the front panel of my computer just recently started a slow (1 sec) blink. This occurs from the moment I power on and continues until I power down. I have a Asus A7NX8 Deluxe motherboard with a generic (Turbolink LC-A420ATX) power supply. It has been running for about two years with no problems. I don't believe it is a temp issue because the blink occurs the moment I power on. The voice POST reporter doesn't report any problems and boots normally. The computer seems to function normally. Is this blinking power LED trying to tell me something?

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Hi, I just bought an HP pavilion e9300 a few week ago. And I am going to upgrade the power supply so that I can get a new graphic card--ATI 4870 which requires at least 500 watt power supply. My current computer is shipped with a 350 watt power supply. I will probably get a 650 watt considering the 70% effeciency of power supply.
However, when I talked to an HP technician, he insisted that I could go for a power supply with no more 450 watt. Because the system I just got has a motherboard which has a max power limit 450 watt. He said if I go beyond that, the motherboard will burn out.
So what shall I do? I really want to get ATI 4870 work well on my computer.
Thx very much.

Answer:Does power supply with higher power rating really burn motherboard?

The long answer is "No".
Just be sure of the dimensions of the power supply before you order a replacement, as HP uses some pretty strange sizes sometimes, and you want the new one to fit with room to spare.

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It's been a while since I built a system from scratch and have a... errr... simple question

gfx: Sapphire HD3850 512MB Ultimate (passive)

MB: MSI P35 Neo2 FIR

PSU: Seasonic M12II 500W

The motherboard has a power connector for the graphic card next to the slot.

Is there any reason I should connect the power for the card to the power connector on the board instead of directly to the power supply?

Answer:Graphic card power to power supply or connector on motherboard?

First time I have ever seen that feature. I like it. I'm thinking that is a neat/easy way to partially eliminate cable clutter from the PSU. Give it a shot, you can always revert to PSU cable if you wish.

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Hi Guys,

I have an old Equium L40 that I haven't used it in a while.

Now when I plug the power adapter in the power led just blinks green constantly.
I've checked the blink codes but I can't find one for mine. It simply turns green for a second and then off.
Then green for a second then off and does this constantly.

I've tried removing the battery for a few minutes and then holding the power button down for a minute, but I just get the same result. The power adapter is a the one that came with the laptop and as far as I can tell works fine.

Any other ideas would be greatly appreciated!

Thanks guys!

Answer:Equium L40 10X Blinking green power LED


Power Indikator (DC IN) indicates the power status with the AC adaptor connected.
The green (not blinking) means power is being supplied and the computer is turned on.
The power indicator on the front of the computer will glow green when the computer is switched on.
The blinking amber indicates power is being supplied to the computer while the notebook is in sleep mode.

Unfortunately, the DC IN green blinking status looks like a hardware problem.
Probably the power supplied to notebook is abnormal or there are some problems with power supply electronic on the motherboard.

By the way: please check the RAM modules. Remove one and test the unit using only one module in each slot. Check both modules.
Some years ago, a friend of mine has had some problems with the notebook. The blinking LED indicated the RAM issue

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Why would a computer take hours and days before a display? When the system is turn on very ofter the power light keeps blinking and the harddrive light is on but nothing shows on the monitor for hours or days and may not at all. Powering off and re-powering rarely helps it just have to be left alone and comes on whenever if ever.. Thanks for help

Answer:The power light keeps blinking and the harddrive light is on

Try a new signal cable from PC to monitor.If no change, try a new graphics card.If still no change, test the hard drive with "Seagate SeaTools for DOS".Click the "Download" tab here: download is an ISO file, so you'll also need to install "IMGBurn" from here: IMGBurn to create a CD from the ISO file, then boot your faulty computer from it. The testing program will open. Select the hard drive and test it. If it fails the test you need to replace the hard drive.If hard drive passes the test it's okay, so test the RAM modules with "Memtest86" which is also an ISO file, so you need to create a CD from that too:

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From last few days my PC has developed a display problem. (which I believe it to be related to win xp rather than monitor)On switching on start button the monitor remains blank only. The power on indicator turns green and continuously blinking @ 3 secs. As usually I do when any problem encountered with my pc, searched for a solution in the net and found a discussion at one place one with similar symptom. It says to switch off the mains and keep the PC start button depress for few secs and then to go for normal start. I find that It works ok, but the problem is not solved for ever. Next time when I go for normal start same problem appears.

If any body has a better solution pl suggest. my PC is HP with LCD monitor, graphics on board. OS is XP Sp3.

Answer:Monitor blank, power led blinking green

So on a cold start up - if you just press the start button - monitor won't display anything. But, if you hold in the start button, you are able to get a display?

I just want to make sure I am understanding correctly.

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Everything is pluged in but no noise nothing comes on but the little green light on the front .Help Help

Answer:No Power But Have Green Light

Green means go. In this case go check inside the case to see if all fans are turning and if the power supply appears on when started. We can go from there.

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I have a dell mini 10v that uses windows xp. week before last i noticed that my computer's power light was blinking red. what could be causing this problem? when I touch the charger, ever so lightly, or barely touch the pc, the computer will power off. after jiggling the wire to the charger, the power light comes back on, and is blinking red. sometimes i do not even have to touch the pc, it powers off on its own.

i then have to press the power button for the computer to start up.

i was told i needed a new charger, which i purchased, but the power light is still blinking red. i went to the power option and my battery is at 55% and does not change. what is causing this? do I need a new battery? i checked to see if my power option was set on stand by. it was and so i changed it, but the light is still blinking red. does anybody have any suggestions?

i was told t remove the battery for a few minutes and then reinstall, but i cringe at having to do that. the screws in the back are so small i am not sure i can even get the panel out, but if i have to, then i will.

what should i do? thanks for the help

Answer:power light blinking red

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My dad recently tried to install new ram in his computer (not mine in case you remember that topic) but when he did the computer wouldnt turn on and the power light constantly blinked, quite rapidly. Thinking that the new ram might be the problem he took it out, put the old back in and it STILL wouldnt turn on, and the light still blinks. Apparently it happend last time he unplugged his computer, although i don't know why he did it then. He said that last time he set ti aside and later (week+) plugged it back in and it worked. What would the problem be and how could we fix it?

He has a Dell 4700C.

Answer:Power light blinking?

Your diagnostics and problem solvers for the Dell

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I have a logisys CS305BK and i have a lga 755 motherboard and every time i press the power button it just blinks nothing else happens. I dosent even run!

Answer:Blinking power light

Im thinking a power supply problem or maybe a failing motherboard.

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I just got a hp stream 11 & it won't turn on & the power light is blinking.

Answer:Power light blinking

Hello,How many times does the LED blink?  You can get information about blink codes here:

-ChrisI work for HP.Support Forums are now on your mobile phone:

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I've had Windows 8 sitting around since February, and got around to installing it yesterday. So far all is well, except for when I shut my computer off the power LED will keep flashing. At first I thought my computer was just in sleep mode, but after hitting a couple keys that was not the case. Is there a setting some where that would cause this. I know it's a minor issue but damn that LED is bright.

My systems specs
Intel Core 2 Quad Q9300EVGA 123-YW-E175-A1 LGA 775 NVIDIA nForce 750i Seagate Barracuda 7200.10 ST3750640AS 750GB CORSAIR XMS2 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800Yeah this machine is over five years old, working on getting a new one together soon.

Answer:Blinking power light

As a test you could try turning Fast Startup off, Fast Startup - Turn On or Off in Windows 8
The Fast Startup uses a hybrid sleep mode and that may be why your power LED is blinking.

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What's wrong when the power supply green led on the back is blinking as well as the power light on the front blinking. It was on solid, I unplugged it and moved it. Now, it blinks and can't do anything(power up). It's a Compaq Presario.

Answer:power supply led blinking ????

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While the laptop was shutting down and doing updates, the power light was blinking and I press it and doesn't respond. The quickplay buttons wont respond either. I took the battery out to turn it completely off. Now the laptop won't turn on at all. Yes the battery light does display. I've spent a lot of money on this thing, RAM because it only had 1 GB of Ram, It needed a new Battery and High Quality Thermal Pads to keep the GPU Cooler.

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Now that it's summer, my T420 is back to not booting if it doesn't feel like it. As before, I press the power button, and instead of doing anything, the power light starts flashing, one second on, one second off, forever or until I get bored and pull the battery out for a second or two. I've gone through all the threads even vaguely related to it, which are full of all sorts of weird fixes that don't work for me  (I haven't tried the eye of newt ones yet), but none of them answers the obvious question: What condition does the flashing power light signal? It's obviously something that the firmware or hardware is designed to do under a specific set of circumstances, but so far no one (least of all from Lenovo) has mentioned what they are. I've tried taking it to the repair shop (MicroCenter), but the problem is that it never shows the problem at the repair shop.   It seems like if it's in a perfectly temperature and humidity controlled space for a long time, like your average repair shop, the problem goes away.  Or it used to, anyway.  Since I haven't found a set of specific conditions that consistently trigger the problem, I can't show it to the shop. There are a lot of things I like about the T420.  But I can't deal with a laptop that only works when it feels like it, and which has a problem that a lot of people share but the manufacturer isn't helpful with, so I think my next one (i.e., after I give up on this one) will ... Read more

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I have an N22 chromebook that when plugged into a known good power adapter, the charging light blinks amber.  Nothing appears on the screen, so it appears to be dead.  Pressing power does nothing.  Can anyone recommend something for me to try to revive, or is this unit done for?  

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I have a Satelite 1415-S173 that won't boot.
The only signs of life is the blinking power light.
The lights flash in this pattern 3-3-2 3-3-2 3-3-2

I have changed out everything memory, hard drive etc.

Answer:What does this blinking power light pattern mean?


When the notebook has a problem with power supply (board electronic), sends hexadecimal code.
In your case there are two problems:
- To know what this code means you must know exactly how to read this code. The binary code must be converted to the hexadecimal code and then you could compare the code with the description in the maintenance manual.
- Maintenance manual is not a public document.

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A friend gave me an old switch he had found, however it seems to be broken.
It's a d-link des-3526 managed 24-port switch.

The power light is blinking, and it does not have any lights light up when cables are plugged in, neither on the computers network card or on the switch.

The network cable is good, it works with a different switch, and I have tried using a different power cord.

Any way to get this working?

Answer:Switch Power light Blinking

Anything on the serial console?

Assuming the blinking indicates a fault, it's probably not something you're going to be able to repair yourself, but the console may indicate what the fault is.

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Yo, this is my first post : ) I searched for this topic, but my question is pretty specific...

Yesterday i was on my computer and all was well, except my sound wasn't working. i don' thave a sound card so it's directly connected to my motherboard - that was annoying, but then my keyboard backlight kept blinking on and off and started entering in a lot of typing in my computer. They keyboard problem might be an isolated issue though cause it's given me problems before.

Well it didn't look like any immdediate danger so i went to sleep. This morning though, my computer wouldn't start up... the power light was (and is still) blinking on and off when it's plugged in. I tried switiching out a different cable, a different wall plug, and waiting a lot, etc. Well it's definitely the PSU - but i'm not sure if that's it.

I want to go get it repaired cause i'm a noodle amed choir girl with no hardware experience, but i don't know if i should just get the psu replaced or should i look at a new motherboard too? the sound wasn't working yesterday, and i'm not sure about the keyboard incident, but it'ss just started giving me all this trouble.

Also, my setup is really old, and kinda crappy. I have a Sony Vaio. I'm inexperienced with hardware issues so bare with me if some of this is not necessary. The PSU wattage is like 250, and seems to me, very weak. i dont' know the details about my mothereboard, bu... Read more

Answer:PSU power light blinking...dead?

There really is no way to be absolutely sure as to what the problem is. The PS is a good place to start.

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I just finish reformat my PC, while I'm installing software's i notice that my monitor just turn off and and the Fan's inside my computer is not working also the power light is turn red and it's just blinking. what could happen to my PC? Please help me.

Answer:My won't open and the power light is blinking red

Am I to assume that you have successfully installed Windows XP (your other post)?
What software are you installing and after how much time does it tur off?
Did you review the power settings (under screen saver) after you installed Windows?
Also, you never gave any specs on your computer (aside from the o/s) what kind of PC do you have, how old is it?

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My PC wouldn't turn on on Monday night - just a green flashing light on the front. After a bid of fiddling with the kettle lead etc and moving the pc, it worked. After switching off as usual the same thing happened the next night. I replaced the kettle lead but now it just sits with the green light flashing. I've checked the forums but can't find someone with the same problem in that the pc DOES work every now and again. PC about 15 months old. Has anyone any suggestions (hoping its not the hard drive).

Answer:Solved: Green Flashing Light no Power!

Solved - had a chappie at work have a look and the fan doesn't move. By the way the green light now doesn't come on at all. It's the psu and it's being fixed later. Thanks for looking and hopefully this may help someone else!

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Hello, I'm trying to figure out if the power supply on my hp is bad or not. The green light on back of the tower is flashing and the computer won't turn on. I've tried all of the preliminary things and nothing works -- the green light keeps blinking until I disconnect the large plug to the motherboard, then the light stays on and doesn't blink. Once I have the power cord disconnected and the main plug to the motherboard disconnected as well, I then have tried replugging the power cord and then replugging the main plug to the motherboard (kind of trying to jump start it), the fan tries to come one (but only for a second, then goes back off, so it won't boot).Does anyone know if this means that the power supply is bad or if something else might be wrong? I'm wondering if the power supply would be bad when the computer is clearly trying to start, but not quite making it.

View Solution.

Answer:no power and green light on my hp pavilion is flashing

If the PSU blinks it needs to be reset.unplug the electrical cable from the wall and the PSU.move the red voltage selector to the opposite position it is in and then slide it back. If you live in the USA 120Vac-->220Vac-->120Vac see the image below.  After you have done this you can plug the power cable back into the PSU.  Connect the power cable to the wall power. If the PSU is still serviceable it will no longer be blinking. Best regards,erico Edited to fix the broken image link.

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Hi folks, having a problem here. I have the motherboard in the title and just yesterday after shutting down and replacing a fan, my computer will no longer turn on through the case power button. I thought it might be the case wiring that is shot, but I tried booting the system by doing the "screwdriver to the power pins" trick. I dont even get a reaction at all. I have taken all the parts off and put them back together, but still the same. So... did my motherboard randomly fry from just replacing a fan.. (maybe dust?) I'm not sure. I just need some assurance on if it is the motherboard so I can get a new one. I dont have any other computers at the moment to check the parts. Thanks guys, and please try to be swift.

Answer:Asus P7P55 Pro green light, no power

I always try another power supply first for this condition. The green led mean only that 5 volts is present. There are other voltages needed from the power supplies

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My Tecra A1 wont power on. Instead I just get a blinking amber power light.

Things I have tried:
1. Removing the AC adapeter
1a. The Pwr light still blinks : the comp wont turn on

2. Removing the AC adpter and the battery. Inserting the battery and hitting the power button
2a. When I remove the battery the blinking goes away, when the battery is replaced, the comp wont turn on

3. Removing power cord, and batttery : reattaching battery then power cord - hitting power button
3a. Right when I reattach the power cord, the power button starts blinking amber. Power button does nothing.

The light only blinks (or does anything for that mater) when the power cord is in.

In advance, thanks for the help.

Answer:Tecra A1 No power : Blinking Amber Light


Try to start your Tecra without battery just connected on power supply.

It is possible that here is some problem with battery. If the Power supply microcontroller detects an error the DC IN lamp sends a blinking code. Reading this code it is possible to know what the problem is.

If you think that battery is defect contact service partner.

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This laptop is giving me ****, The first time I fixed this laptop (acer aspire 5520). I just disassembled and reassembled it and ran start up repair. The owner (I'm disabled and fix computers for people that can't afford it while I study for the a+ cert) brought it back with the same symptoms. when turned on the power on light and fan comes on then goes out and then the power on light blinks with the hard drive light blinking now and then. I tried a hard boot and I disassembled and reassembled completely, tested memory and memory slots took cpu to local repair shop and it tested clean the owner said the start up repair came up a few times right before the failure so I started with the hard drive no errors in the mbr and the hard drive works fine on different computer. any help would be great I'm trying to fix as soon as possible as owner is bed bound and her computer is her whole life

Answer:aspire 5520 blinking power light

Is the power adapter on the motherboard loose? IF so it may need to be soldered back into place.

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The other day I decided to turn my envy off for the first time in roughly a week. I usually just leave it on, plugged into the charger, putting it into sleep mode when im not using it. For some reason, ever since then I have not been able to turn it back on. Whenever I press the power button, The power light blinks. The pattern is a single short blink every 3-5 seconds. This continues until I take the battery out. Sometimes, if I leave it be for a day or so, I am able to get the computer to turn on, but It will not boot. I can hear the fan going, see the lights turn on as they are supposed to, however the screen remains black. I am under the impression that this either a hardware issue, or the CPU is just toast. either of which would suck. Normally I would take to a computer shop and have them look at it, but right now I'm serving in Iraq, so im SOL. And yes, I have tried everything under the sun to get it running. I have taken the battery out and left it out for an extended period, tried turning it on with and without the ac adapter plugged in, tried to perform a hard reset, and a combination of all of them.

Answer:My ENVY 15t will not turn on. I get a blinking power light e...

Last thing to try is remove the cmos (RTC) battery overnight, put it back in, if you get the bios post screen immediately enter the bios and set the date and time (before windows loads)  If you get it working, download the latest bios and install it. Then the latest grahics driver. Service manual for the 15t-1200

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Hello everyone this is my first post here. I own a dell optiplex 745 with a core2duo 1.8 Ghz processor, 2 gb RAM and have also added an XFX HD 5550 to it. I have been using it since almost two years, and it hasn't caused me many problems except this blinking orange power light.
The problem is just this that the desktop just won't start. All that happens is that the power light just blinks orange. This has happened to it almost four times in the last two years, and the problem has seemingly resolved itself the last four times. Well it would go something like this: I would turn off the PC normally, and the next time i started it all i would get is this blinking light. Then after a couple of days or hours, I would try again and it work as if nothing had happened. But this time it happened four days ago. I turned it off, then switched it on but i got the orange light. Since then, I have tried so many times but this time I fear something much bigger has happened.
Now I have done a decent amount of work in trying to figure out whats the problem. The key thing to note is that its not my PSU (yes i used a different one). Does this mean it's my motherboard which is causing the problem? Or is it something else?
I did a bit of digging up on the internet for the same problem, and I saw one which said something about a faulty power on button 
I havent tried it but I... Read more

Answer:Optiplex 745 Blinking Orange Power Light

According to the Dell manual this is either a power supply or motherboard problem.  It doesn't detail how to further troubleshoot.
Do you get any diagnostic lights? or beeps when you power it on.
But, you can remove the video card to see if the symptom changes.  If not, reseat the memory as a next step.
If neither of these help you are back to either the replacement power supply or a motherboard problem.

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Hi guys, my laptop fell like 3 feet off the bed and now won't charge or turn on. When I plug in the ac cord, the charge light rapidly blinks. It is a white color led blinking. What does this mean as the manual only has white, amber, and blinking amber options. I tried just using the battery and it does not turn on. Also tried the hard reset where you hold the power button for 30sec to 1min. Any solutions would be appreciated. Thanks!


View Solution.

Answer:Hp pavilion dv6 charge light blinking with no power


Thank you for the information. For the battery light blinking repeatedly, I have included the following document 'Computer Does Not Start and the LEDs Blink or the Computer Beeps'. Once you do have the link open, click on Battery power LED blinks' and follow through the steps.

The second document that I have included is 'Computer Does not Start (Windows 7, Vista, XP)'. Once you do have the document open, please click on the symptom that your computer is having, and follow through the steps in order.

The last document that I have included is, 'Battery Does not Power Notebook or Hold a Charge'. This will take you through the different options of testing the battery, power supply, and system board.

Please let me know if you are able to turn the notebook on after this, thank you.

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Yesterday, I was just sitting there watching TV at my computer desk, with the computer on, next thing I know- I look over and the computer was shutdown. I didn't know why, so then I go to turn it on, it will not turn on- and the power button, that should be green, starts blinking orange. I'm not sure what the problem is, I think something might be dead. I have been getting a message that says "Alert! System Battery Voltage Low" for about 2 years, I'm not sure if that would be it or not (Maybe that died? Would that do it? I don't know).

When I try to turn it on, I can see the fan and stuff turn on for about half a second, then everything just turns off except for the mobo light and the orange blinking light. I've tested my brothers working power supply in mine, so I know that mine still works because that didn't fix it. I've taken the graphics card out, that didn't do it either. I don't know what else I could do, please help somebody, I'm lost without my computer... Thank you.

Answer:Dell Won't Power On (Orange Blinking Light)

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The laptop has been fine for years then all of a sudden it would not charge.The light next to the power lead connector blinks red then white when the battery is attached. when the battery is removed the white light blinks. Ive tried a hard power up option but the laptop Will not power up even with the power cord connected and no battery attached.suspect it's the power cord but would like to know if anyone has had a similar problem.the battery is a Hp replacement about a year old.thanks

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When closing the laptop, it goes into sleep/hibernate mode, but the power button keeps blinking. Many times I use the laptop at night right before sleeping but the blinking light is extremely bothersome in the otherwise dark room. Is there a way to disable this?

Answer:Disable blinking power button light

I don't think there is a way to turn off the blinking light. It happens on all Hp laptops when they go into sleep. (the power button keeps blinking but not on hibernation).

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Hi i've got a HP Pav DV4 which was dropped. Now I have blinking power light when connected to ac adaptor with the battery but when I remove the battery still connected to ac adaptor no lights. and on pressing power button the all lights comes on for 2 seconds and go off(this is again with battery) a bit frustrated. I have stripped it down to mobo only still the same. Can Anyone help.!!!!

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My tower won't power on it just has a fast orange blinking light also the monitor say self test displaying r color please help

Answer:My tower won't power on it just has a oreorge blinking light

Miranda, before we can offer you help we need to know how much you know about computers.

For example..... are you confident to open the box and check the components..? are you confident to perform some advanced procedures in the OS..?

Based on your reply we will know at what level to offer you help.


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I was upgrading this computer to Windows 10, I had done an in place install but the kids had spyware that was showing up even then. I did a refresh, it failed I did an install and finally got into windows. Installed a couple updates and rebooted.
The computer has been bricked since. The only thing that is happening is the LED that indicates the power above the button will not stop flashing white. Plugged in or not plugged in, after holding down the power button for 5, 10 and 30 seconds, The power light stops flashing for a moment and then starts again. I tried multiple outlets. No clue unless it is coincidental hardware failure.

Answer:XPS 18 will not boot, power light will not stop blinking

I'll ammend that.  I went back in and re-removed the battery cable.  I also removed the CMOS battery cable this time... that at least got me to an onscreen error message and access to BIOS!

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My computer randomly shuts down and the blue eMachines power light in the front starts to blink. I can't do anything with the computer unless I switch the power off to the computer or unplug the back plug. Then I can plug it back in and turn it on. Usually it happens a little while after I turn my computer on, but it sometimes lasts half a day then shuts off like this. Does anyone know what's causing it? It refurbished and I got it around a year or so ago.

Operating System
Windows Vista Home Premium Service Pack 1 (build 6001)
Install Language: English (United States)
System Locale: English (United States)

System Model
Enclosure Type: Desktop

Processor a
2.20 gigahertz AMD Athlon 64
256 kilobyte primary memory cache
1024 kilobyte secondary memory cache
64-bit ready
Not hyper-threaded

Main Circuit Board b
Board: MICRO-STAR MS-7184
Serial Number: 5922724665
Bus Clock: 200 megahertz
BIOS: Phoenix Technologies, LTD 6.00 PG 08/19/2005

195.63 Gigabytes Usable Hard Drive Capacity
162.76 Gigabytes Hard Drive Free Space

TSSTcorp CD/DVDW TS-H552B ATA Device [CD-ROM drive]

Generic USB CF Reader USB Device [Hard drive] -- drive 2
Generic USB MS Reader USB Device [Hard drive] -- drive 4
Generic USB SD Reader USB Device [Hard drive] -- drive 1
Generic USB SM Reader USB Device [Hard drive] -- drive 3
ST3200021A [Hard drive] (200.05 GB) -- drive 0, s/n 4LJ1RMVY, rev 3.01, SMART Status: Health... Read more

Answer:Computer shuts down with blinking power light

It sounds like you have a driver problem, and the blinking light suggests that the computer isn't actually shutting down, its actually going into what vista now calls 'Sleep', or standby in XP.

I had the same problem with my desktop the computer, try updating your motherboard drivers and video drivers from the relevant manufacturers websites. Give that a try and if it doesn't work then let me know and i'll give you another possible solution.

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I need help XPS 8900 power light blinking orange. I have reset memory brought new  battery. I have tried everything people post nothing works. I even disconnected UBS ports still nothing. HELP PLEASE

Answer:XPS 8900 power light blinking orange

1. If you're using a surge protector, power strip or uninterruptable power supply, disconnect those and connect PC directly to a working outlet.
2. Power off and unplug power cord from *rear of PC*. Press/hold power button for ~30 sec. Reconnect cord to rear of PC. See if it boots now.
3. Have you disconnected all peripherals, including mouse and keyboard?

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I had a lightning strike and I think my Power Supply may be shot.

I had it plugged into a cheap surge protector, but I don't trust it.

When I plug it in, directly to the wall socket, the green LED on the back of the power supply just flashes constantly. But when I try to turn the computer on, absolutely nothing happens.

I tried a new power cord with no luck...same thing.

Might there be a reset switch in the power supply, or does this flashing green light mean that it is dead.

Thanks...I appreciate your help


Answer:Lightning hit...Power supply flashing green

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Hi, my X240 laptop has suddenly stopped turning on. When I press the power button, the indicator light flashes green three times. I've switched out the AC adapter, same result. Can anyone tell me what the three flashes indicate? Is my motherboard fried or is it potentially something else I can troubleshoot? Thanks!

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the monitor power light just blinks green

Answer:Monitor power light blinks green on boot

do you get any beeps when the machine starts?check the video cable is connected correctly to machine and monitor.try another video you see the post messages?check that your video card is correctly seated.i hate computers!but cant help myself....

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Hello everyone

This is my first post, as well as my first build attempt, so please be gentle.

P4 3.0 ghz
480w psu
1 stick MD4412UOE 512MB DDR-400 PC3200 Power Memory
Integrated Intel Extreme Graphics

I purchased all of my parts from newegg, and i finally found the proper time to put everything together. After getting a cpu fan that was too big, i purchased a AeroCool cpu fan. I had to remove the P4 retention module, and I now have the fan installed. I installed everything else (cd-rom, hdd, disk drive), and I turn the power on, to find that nothing is happening. I have taken the mobo out of the case to make sure it isnt grounded, and none of the fans power up. The only indication of power I get is the green stand-by light located between the second and third pci slots, and the keyboard lights flash on, then off. Whenever I turn the power switch on, the same thing happens with the keyboard and the rest of the mobo.
I have a buddy who is also putting together his own build, and he said that it was strange to hear that not even the psu fan is starting up. The psu has two power receptables, that I can best describe as female and male. Dont know if this makes any difference. I dont know what to do, and I was wondering if this sounds even remotely familiar to anyone. Am I missing something with some of the jumper settings, or does it sound like a huge problem?

Thanks again in advance for any help, and I'm glad I found my way to this ... Read more

Answer:No power to the psu bios...nothing but a green standby light on the mobo.

Have you plugged in the seperate 12V lead (4-pin) to the motherboard? It's used to supply the processor power.

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I have tried everything several thing to get my MOBO powered up ..Right now there is only a green light ..i have tried to switching the PSU .I have tried crossing the pinns with a screw driver and nothing
what else ?

the MOBO is a P4P800 se

please help

thank you

Answer:No power to the psu bios...nothing but a green standby light on the mobo

Try assembling the motherboard outside the case to see if it will boot then

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Ok, bear with me here fella's, I just stumbled onto this site and decided to do the quick registration. Looks like a place I would like to come back to again....
Im not sure Im in the right section for this..
(meanwhile, back at the ranch):

My Compaq Persario sr2010nx woke me up late at nite with a noise. Now I got the green blinking lite,
clicking sounds out the spkrs and the front pwr button is seemingly disabled. I disconnected everything,
held the pwr butt in for 5 sec's, plugged directly in the wall, no change. I opened up the tower and
checked the cable connections and all seem to be tight. No change. So far, my diagnosis---most likely power supply is bad, am I correct?
Im desparately hoping my HD is ok. Im hopin one of you PC maint
expert guys/gals out there might know any more easy tricks I can try to verifly that the prob is actually the pwr supp before I go out
and purchase one them little gold-plated items. Im just an ex-cable-splicin phoneman, forced into IT Technician
for a few years before retiring. (hehe) your input would be greatly appreciated.
Thanks in advance,

(sub-question) Can I do these tests without connecting the keyboard and monitor up every time?

Answer:The infamous blinking power supply lite lol

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Today I went to press the power button on my Dell vostro 220s intel pentium running windows vistaThe power button blinking a yellowish color while Sound beeps twice at a time. I just used this computer last night with no problems Please help me. I have the system open ready to explore.

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Hello Guys,I have HP dv6 pavilion series with Windows 10 (64 bit) for 4 years now. I dont have the Battery so I usually work with directly connecting the Power cable.It worked fine till now. Today it abruptly Shut down and since then its not booting. The Charging light keeps on Blinking.I have tried the 40/30 sec trick (holding thepower on button for 30-40 secs for the capacitors to discharge) twice, but in vain. I also cleaned up my cooling fan and checked for all the wiring, its all intact. After re-essembling the laptop, the same problem persists. And about the Bios update, I do think I have the latest bios updated, as my laptop is connected with internet, and I usually keep it all Updated. And if someone recommends me to Update the BIOS, well I cannot power on my laptop, so is there any alternative for updating the BIOS? Earlier it did Abruptly Shutdown twice or thrice over last few days, but used to Power up again. But today it wont work.Please Help Me guys. Thanks

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Perhaps this has been discussed elsewhere in the forum, but the threads were written rather inscrutably and so I'll state my problem here and hope to receive some feedback.I have a two-month old Yoga 900. Tonight it would not wake up after I put it to sleep. The power light on the side blinked, but no amount of holding it would wake the thing. Also, the machine was plugged in whilst I tried to jostle it from slumber.I googled a solution which, thankfully, worked. Which was: unplug the thing, depress the power button for 10 secs., then plug in power cord and boot again. Aha, this magic trick worked. Nonetheless I feel compelled to ask WHAT KIND OF CRUMMY PC HAVE I BOUGHT THAT GOES INTO HIBERATION LIKE THIS??? And how can I avoid it from happening again. Never had an episode like this with any Dell, Samsung or Mac. Just this jolly two month old Lenovo which I thought was a decent machine until now.Feedback appreciated.

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Hi, I had a friend bring me an HP laptop recently that was not turning on or responding at all. The only thing that happens when I plug the laptop in is that the light located right next to the power port (which has a plug icon next to it) blinks a light blue / whitish color. No other lights blink, not the lightning bolt charging light, nothing. I have tried it with the battery installed, and removed.  Same behavior.I have tried the power drain (hold the power button for a minute while the batter is removed). Same behavior.I have tried multiple power adapters. Same behavior. Does this likely mean something is wrong with the motherboard itself? I can't find much information on a blinking power port light, so any help would be appreciated. Thanks. Adam

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Hi! I have an Acer Aspire switch 10. About hours ago, I charged it, and after a hour or two I opened it and saw critical low battery thing, I tried charging it in different outlets in our house, but all I can see is an orange blinking light in it's power button, I know that it should be steady, Please help! I'm charging it for almost a day, and still the battery is low, sometimes a recovery thing pops out the screen.

Answer:Abnormal blinking orange light in my Power button

Is the machine still inside the warranty period? Jack E/NJ

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power, there is a blinking light in the back, but it wont turn on when i hit the power button. i need help .it is a Compaq PC

Answer:power, there is a blinking light in the back but it wont turn on

The PC may need a new PSU (Power Supply Unit) which fits inside the PC case and distributes the power to the various components.

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My Dell GX300 won't power on. The power button light just blinks when it is plugged in. I tried booting from a floppy and from the OS disk but nothing happens.
Any suggestions would be greatly appreciated.

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I have a relatively new T430s running Windows 8 x64. Starting a few days ago, whenever I tell Windows to shutdown, it appears that Windows shuts down, but the laptop does not, and the power button light/battery charge light blink at a fast green.  I've left it that way overnight, and the light is still blinking and the power still hasn't shut down. From this state the only fix is to hold down the power button for 5 seconds to force a power down, then press the power button again to start it back up. Does anybody have any ideas about what might be causing this problem or how to fix it? Thanks! Charles 

Answer:T430s blinking power light, incomplete shutdown

Hey, i have the same problem, did you find a solution?

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Hi! I have an Acer Aspire switch 10. About hours ago, I charged it, and after a hour or two I opened it and saw critical low battery thing, I tried charging it in different outlets in our house, but all I can see is an orange blinking light in it's power button, I know that it should be steady, Please help! I'm charging it for almost a day, and still the battery is low, sometimes a recovery thing pops out the screen.

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System will not power on at all, and the power light displays the dreaded blinking amber light. It's getting no power at all, and the PSU has been ruled out because I tested the machine with another known working PSU. I have also reseated the RAM, video card, and CPU as well as reseating all power cables and still nothing. I'm trying to find another socket 775 P4 for testing, but haven't come up with one yet. Am I looking at a defective MOBO here, or does anyone have any other troubleshooting ideas?



Answer:Solved: Dell XPS 400 Blinking Amber Power LIght

We decided to just say forget it and build a new one, lol.

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I have a Dell Dimension 5150 desktop that is 4 years old (kids computer).  Worked last week but now cannot even power it down by holding the power button.  The power button just keeps blinking an amber light.  I have unplugged everything then plugged back in, tested all the cords.  Any thoughts?Leah

Answer:Dell Dimension amber power light blinking

Right from Dell: System Lights:Blinking Amber:  A power supply or system board failure has occurred.Check the diagnostic lights to see if the specific problem is identified. Also, see "Power Problems" in your computer Owner's Manual.Scroll down a bit further to see Diagnostic Lights.

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We just had a poweroutage for a about 2 seconds, when power came back up, the power light on the router (linksys wrt54g ver 7) started blinking. I unplugged the router, plugged the modem in, and started surfing the net for solutions. One solution I found was on this site. I started reading a thread with a similar problem. Basically, its telling me that the firmware on my router is corrupted and I need to updated it again but by using the tftp.exe program since I can no longer enter the GUI of the router. The instructions I red said I need to assign a static ip first on my computer but it requires the DNS of my router and apparently (according to the instructions I red on the thread here with the same problem) the only way I can get the DNS is to access the GUI of my router and copy it from there. Since I'm unable to do that, I can't set up a static address, I can't use the tftp.exe program (I can't find a site where I can download it anyway); well there's nothing to start until I get that DNS number. I was wondering if I have other options left. I also tried resetting it. It didn't work.

Answer:Power light on linksys router blinking nonstop

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Today I went to press the power button on my Dell vostro 220s intel pentium running windows vistaThe power button blinking a yellowish color while Sound beeps twice at a time. I just used this computer last night with no problems Please help me. I have the system open ready to explore.

Answer:Dell power button blinking yellowish light

That's Dells way of saying you need a new power supply.

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The Power Adapter Light is blinking orange and I am unable to turn on my notebook. It appears to blink 7 times and then 1 time before a extended pause. Any ideas on how to get the notebook powered up again?

Answer:Protege Z930 Blinking Power Adapter Light

Your notebook has hardware failure and it is sending the hexadecimal code. This code can be read by technicians and they will know what the problem is.
I cannot say for sure but I presume there must be some problem with power supply electronic.

Is the warranty still valid?

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When I plug in the AC adapter (and I've tried several) the battery indicator LED rapidly blinks green. No fans, no CD drive or hard drive movement. It's just DEAD.

The 30 second power button trick did not help and Google didn't tell me anything about the flashing green plug LED.

Any suggestions? Thanks!

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HP Palvilion m9077c
Motherboard IPIBL-LA (Berkeley)

Power Supply (DPS-350ab-8a)

Hello all, this is my first post. First, let me thank all for being here and sharing your vast knowledge. My PC and power supply is above, web-links included for more accurate description. Also, I have scoured this forum/internet attempting to resolved and yes there is a ton of info. The problem is the I cannot find specific details "similar" to my problem regarding how they determined the repair action, other than replaced power or mobo. So hopefully, when this is resolved this will help someone with my similar problem.

- Problem > PC will not turn-on, just as if not plugged into power source.
-- Sypnopsis > Nothing unusual happened as far as I know. Shut-down PC for the evening as
usual, next day went to turn it on...nothing.

- Troubleshooting accomplished:
-- Checked power outlet & cords, checked good
-- Green light on back of power supply is steady green...normal indication
-- Removed power supply to test with multi-meter. Strapped/jumpered pins 16 (green wire) with
ground (blk wire). All appears normal, everything is in range of specifications, values below:
pin 1: 3.39
pin 2: 3.39
pin 4: 5.07
pin 6: 5.07
pin 8: 5.03
pin 9: 5.03
pin 10: 12.17
pin 11: 3.39
pin 12: 3.39
pin 13: 3.39
pin 14: (-)12.01
pin 21: 5.07
pin 22: 5.07
pi... Read more

Answer:NO POWER, Is it power supply or motherboard?

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My PC suddenly shut off and wouldn't turn on, but the mouse and motherboard lights were still on. A tech took my PC and ran some tests. I assumed that either my Power supply or my Motherboard was unfunctional but he called me back telling me that it was neither, and that the problem was coming from "a part" that gave power to the motherboard. The replacement of this part would cost $80.

Am I getting ripped off? What part could possibly cost $80 and isn't the Power supply?

Answer:What gives power to the Motherboard that isn't a power supply?

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When I shutdown the vista PC the monitor power light stays green and a box saying, "self test feature check" floats all around the monitor. My XP machine after shutdown the power light turns amber with nothing being displayed.
Does anyone have any ideas? The monitor should hibernate when the PC is shutdown.

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My neighboor has a Pavilion P6710f that won't turn on. The green light on the power supply is steady. My Dell Inspiron had the same problem a few months ago and after replacing the power supply it works fine.  how can I tell if the power supply in this Hp needs to be replaced?

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We bought around 40 of these X220 I5 before xmas and now more than 20 of them have failed. The company we bought them from tried everything but they ended up switching the mainboard on the first two that failed.We were told it was a batch issue with the serial number R9-HNXXX and now all of those are changed into T420. But today we had the same problem with serial number R9-HXXXX that was bought two weeks earlier and with different config - I7 and SSD. All of them with the same problem that is described in subject. Are there any known batch issues? The problem is not with the tablet version and sorry for posting in the wrong forum. Thx


Go to Solution.

Answer:X220 - no post and green light around power button flashes every 3 - 4 second

I was preparing a X220 for a VP in my office and i left on vacation. When i came back, the laptop was dead and i can't power it on. I unplugged the AC and removed the battery and waited a bit, plugged everything in again and still the same thing. The battery LED blinks 3 times then nada. (no fans, nothing) I tried a little trick from the S model, removed AC and battery and pressed power button for 30secs and re-plugged everything but it didn't work. Anyone have any ideas?

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256 DDR
Gf4 4200
tbird 1400
CoolerMaster hhc001
antec 480 psupply
maxtor 40 Gig
All i did was take out my tbird 1.4. I went to 7-11 to get a drink, came back. put in an xp1800+ and now it wont power up.
Ive reseated the mobo,took uot all periphrials,cleared cmos,I think it might be grounded but i checked This has plagued me for almost 6 hours please help!

Answer:comp wont power up when i hit pswitch. The green light on the mobo is on

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