PC boots for half a second.

[simonsays]

Last night the computer I had build about a year ago was idle then shut off due to what I belive was a power surge. Since then when I power it on the fans start to spin and all my lights come on (Tubes on the front, Fans have leds including PSU), then shuts off in less then a second. Can it be the PSU even if the system is getting power (The built in ethernet on the mobo Lights up when off as well)?

My specs
AMD Athlon 2600+
MachSpeed motherboard with V4MDMP chipset
2xRoswell DDR 2700 512
Aopen Geforce 6600 GT AGPx8

Oh and one more thing: After it shuts off it wont power up again untill I unplug the power cable from the PSU

Thanks in advance

[ktkendall]

Yes likely suspect if now faulty power supply due to the power surge.. And yes it can act like you are describing and be a bad power supply, because it may not be dead completely but can no longer supply the amount of needed power to run the PC.

[Kuch]

Try another PSU and see if that isolates the problem. Good quality PSUs only run about $50.00, but you probably want to isolate it as the problem first.

[simonsays]

Replaced the PSU and it booted up like a charm. All the power readings looked good except for the -12 volt which was in the red at -13.5. HaHa can this be a major problem?

Thanks again

[arix]

CHANGE THE PSU 450w+ recommended.

[glc]

What did you use for a replacement PSU? Off spec voltages can be either the PSU or the motherboard.

[simonsays]

I had a 450w that came with the case and replaced it with a 450w by VIO.
The one I had before didn't have this problem. At least I don't think so, I might not of checked after I put in my new video card (Went from a Geforce FX 5200 to a Geforce 6600gt which is a big deference power wise it even has a additional power slot). Am I looking at this all wrong? Could it be because It can't handle my video card?