• After power outage, computer won't start.
    25 replies, posted
Alright so last night we had a momentary power outage which only lasted about a second. My computer is plugged into a powerbar which is supposed to be a surge protector. The computer was on when the power went out. Now, when I press the power button the fans spin for about a second then everything dies. If I press it again nothing happens, and to make it do the fan spinny thing I have to unplug and replug the powersupply from the wall. When I do this the ethernet light on the motherboard lights up, but then turns off soon after. Normally it is always lit. Does this mean that the expensive 600w powersupply I bought 3 months ago is fried, or is there some way to fix this?
Try plugging directly into the wall, or into another power outlet - post the results here.
Try pressing the power button on your MOBO, I had something similar to this happen to me and it fixed it.
I had the same problem. It had damaged the power supply replace it and it worked fine.
I just tried swapping the power supply and nothing changed. I also plugged it into the wall with both power supplies and it failed both times. What is the power button on the mobo?
Have you tested each power supply? [url]http://www.overclock.net/faqs/96712-how-jump-start-power-supply-psu.html[/url]
I know that the other one works because I took it out of a functioning computer.
You can jumpstart the motherboard by shorting the two pins that are used for the power button.
Can I be electrocuted by doing that?
[QUOTE=superadamwo;21509004]Can I be electrocuted by doing that?[/QUOTE] Nah, just use a screwdriver and touch the two pins that are used for the power button. (And only those pins!) (Even if you do make contact with the pins with your fingers etc, I doubt it would carry enough current to electrocute you)
sounds like your pc got a surge, good chance most all the parts are blown. also >My computer is plugged into a powerbar which is supposed to be a surge protector this does not mean it is a surge protector, it means it will do a little of overvolt protection but really only an APC/UPS will protect from surges and dips
Well shorting the power button pins on the mobo resulted in the same thing. [editline]06:13PM[/editline] I just did the paperclip thing on the psu with my hard drives and cd-rom drive connected to it. All of them started up and the psu seemed fine. So it only shuts itself off when it's plugged into the motherboard.
Looks like the motherboard is dead, is it in warranty?
Haha no, I bought it in like 2006. How did the power surge bypass the power supply without damaging it but then destroy the motherboard though?
[QUOTE=superadamwo;21512525]Haha no, I bought it in like 2006. How did the power surge bypass the power supply without damaging it but then destroy the motherboard though?[/QUOTE] In that case, good riddance. Better a 4 year old motherboard, than the graphics card you just bought.
Is there anything else I can try? For some reason it seems unlikely to me that this computer would be so severely damaged while another computer which was on at the time and every other electronic thing in the house is completely fine. Plus I really don't want to pay a computer shop to take a look at it.
[QUOTE=superadamwo;21515609]Is there anything else I can try? For some reason it seems unlikely to me that this computer would be so severely damaged while another computer which was on at the time and every other electronic thing in the house is completely fine. Plus I really don't want to pay a computer shop to take a look at it.[/QUOTE] Don't pay a computer shop, their price would probably be more than a cheap, replacement motherboard. Can you test other parts like the graphics card and CPU in another computer?
To be honest, it might have been easier if it was your PSU that blew. The installation of a new motherboard is a bit of a pain in the arse.
I'm pretty sure that everything except the motherboard and CPU work fine, but I have no way of testing either of those right now.
If your other PC has the same CPU socket as the other one, then try putting your CPU into the other one.
It doesn't, that's the problem,
Well I just bought a new motherboard and that seems to have fixed it, so yay.
[QUOTE=superadamwo;21561831]Well I just bought a new motherboard and that seems to have fixed it, so yay.[/QUOTE] buy a power outlet with a surge protection, it help greatly reduce those accidents. cost about 25$ on newegg!
[QUOTE=superadamwo;21561831]Well I just bought a new motherboard and that seems to have fixed it, so yay.[/QUOTE] Good to hear. :w00t:
[QUOTE=shipkiller;21565743]buy a power outlet with a surge protection, it help greatly reduce those accidents. cost about 25$ on newegg![/QUOTE] Well like I said I have a power bar which was supposed to be a surge protector, but JohnEdwards says it isn't :(
[QUOTE=superadamwo;21572745]Well like I said I have a power bar which was supposed to be a surge protector, but JohnEdwards says it isn't :([/QUOTE] They don't always protect, from sags then to load draw. APC/UPS is garunteed to work
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