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Power outage, now my cpu turns on and then off after 2 seconds max!

By naultr6 ·
We had a power outage about a week ago and I had turned my cpu off since it was a planned power outage. I had it plugged into a surge protector and all that. The next morning when I went to turn it on, all of my LED lightes came on, fans turn on (to include the cpu fan) and then it just dies like there is no more power running through the system. No bios screen, no chance to load anything. It had been working fine the night before and for the previous 6 months without a hitch.

I'm wondering if the power outage could have fried my whole system or is it just likely my power supply and how can I (a non techy with limited resources) test to see what the problem is.

Step by step instructions if you guys can please, this was my first build and my friend helped me put it together.

this is my power supply:
KINGWIN ABT-600CW ATX 12V Ver.2.2 600W Modular Power Supply

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All Answers

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Check the CPU fan

by bart777 In reply to Power outage, now my cpu ...

If the CPU fan has come loose or is not seatd correctly the PC will detect the cooling problem and shut itself down to protect the processor.

Open the machine up and verify that the fan is seated correctly, plugged in and starts when the PC is powered up.

That's where I would start before you start replacing parts.

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CPU fan is working/seated correctly

by naultr6 In reply to Check the CPU fan

As I stated before the only change was the power outage. The computer had been running normaly without a hicup for over 6 months.

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Power outlet

by frostbit_ak In reply to CPU fan is working/seated ...

Just for grins, try plugging something like a hair dryer into the outlet that your PC is plugged into and see if the hair dryer stops working. I had an outlet go bad after our power co. did some work. The surge protector was fine, the actual plug in the wall was bad.

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There's power to the strip

by naultr6 In reply to Power outlet

everything else I have plugged into the strip works without a hitch. In fact, i've plugged my laptop power cable into the socket my desktop was in and it works just fine. It really doesn't stay on for more than a second. It's seeming to me that it isn't holding a charge to keep the cpu on long enough to do any sort of diagnostic or startup or anything. I've talked to some of the techies at work and they're thinking its the power supply as well.

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Power outage, now my cpu turns on and then off after 2 seconds max!

by simplyfet In reply to Power outage, now my cpu ...

just experiencing the same problem. I kept on browsing to forums but still no answer with my problem. I'm sure that PSU isn't the problem because I already replaced it with new one. is there anyone who could help solve this? it will be very much appreciated :)

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Reponse To Answer

by hyein2000 In reply to Power outage, now my cpu ...

I had experienced in this kind of situations. I doubt it was a virus malfunction. I played an IT role in the company where I am working today. At the first day of my job, the previous IT leaved all the computer with a problem(ei. computer viruses, power on problem just like yours, malicious internet files, etc). What I did with this problem is, I bought/replace a new motherboard of the PCs that experiencing power outage, reformat the hard disk, and re-install a fresh copy of software.
The computers are all running fine for 8 months now.
Just 3 simple steps:
1. Replace new motherboard.
2. Reformat the hard disk. (Don't forget to back-up the needed files and applications)
3. Install operating systems and software application.

Try this one!

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Reponse To Answer

by hyein2000 In reply to Power outage, now my cpu ...

I had experienced in this kind of situations. I doubt it was a virus malfunction. I played an IT role in the company where I am working today. At the first day of my job, the previous IT leaved all the computer with a problem(ei. computer viruses, power on problem just like yours, malicious internet files, etc). What I did with this problem is, I bought/replace a new motherboard of the PCs that experiencing power outage, reformat the hard disk, and re-install a fresh copy of software.
The computers are all running fine for 8 months now.
Just 3 simple steps:
1. Replace new motherboard.
2. Reformat the hard disk. (Don't forget to back-up the needed files and applications)
3. Install operating systems and software application.

Try this one!

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One other possibility and a couple of hot tips...

by SmartAceW0LF In reply to Power outage, now my cpu ...

I have experienced many situations similar to your description which were caused by a PCI Modem or Network card. Before proceeding any further be sure to remove either of these if they are in your system and then try to boot again.

In the event of a storm or power outtage, it has been my personal experience that "Surge Protectors" provide only one real advantageous utility. That being a centralized place to plug everything into such that it is only necessary to unplug one wire to effectively isolate your system from the household electricity.

Fact: rarely (if ever) does an electrical "surge" ruin your electronics. More often than not, it will be the resultant "Brown-out" or LACK of electricity which kills electrical appliances and electronics. NOTE: There is one exception to the above. YOUR SURGE PROTECTOR WAS NOT DESIGNED FOR -NOR WILL IT- PROTECT YOUR APPLIANCES FROM LIGHTNING. The only thing that will serve as protection from lightning -short of spending a LOT of money- is to unplug the appliances. Further, even following the above advice, it is important to remember that effectively isolating said appliances is not fully achieved without also removing any LAN cables and/or Phone lines as well. This is often overlooked.
Repeated interruption of electricity is likewise hard on electronics. Again, more from the resultant starving of electricity than anything else. Your best protection for this is a UPS. But even a UPS will not protect you from lightning.
Given that I knew nothing other than what you describe here I would
1.) Check the CPU fan to be assured it is spinning (and continues to do so) on powering the machine. If yes go to number 2, if not replace it and try again.
2.) Remove any internal modems or network cards that are not built into the motherboard and try again. If it still fails to work...
3.) Check PSU. Note: yes there are inexpensive devices that you can plug the PSU into to test it, but it is not unusual for these to register a PSU as good even when it is not. It might not be cost prohibitive to simply replace the PSU and try again if your system is not of a high end nature.

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Reponse To Answer

by simplyfet In reply to One other possibility and ...

all of my LED lightes came on, fans turn on (to include the cpu fan) and then it just dies like there is no more power running through the system. No bios screen, no chance to load anything. It had been working fine the night before and for the previous 6 months without a hitch. but after cleaning processor and its fan. problem become worst. whenever i turned on the AVR the CPU starts automatically but everything stops after 2 to 3 secs.. worst is, i cant turn it on anymore.. any idea bout that?

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Re: Power outage..

by Peconet Tietokoneet In reply to Power outage, now my cpu ...

You had said this was your first build.
Now, when you built this rig are the parts second hand or brand new?
If brand new then you have the warranty to back you up by returning the motherboard.
If second hand then you will need to look at the motherboard and see if there are any bulging capacitors like here:
http://www.thenakedpc.com/dan/Bulging_Capacitors/index.html
if you have capacitors that are bulging then you will need a new motherboard or if you are good at soldering you could replace them for a few pence/cents.

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