Weird Power Problem

[quakeworld]

hello. when i power on the PC nothing happens. no boot, no power led,nothing. i left the room for a few minutes and when i got back the pc turned on by itself. so i tried it again. turn on pc, wait a few minutes then it eventually turns on.

sometimes it won't turn on at all though. waited as long as 10 minutes.

i checked the power cables, ups, etc. and everything checks out.

is this a PSU problem or a mobo one? thanks!

 

[Burpo]

Not much info to go on, but it sounds like motherboard has a bad capacitor..

 

[VirtualLarry]

A friend of mine, back in the K6-2 days, had a similar problem, that was resolved by replacing the power supply.

 

[mfenn]

Are there any LEDs on the motherboard itself? If so, do they light up when the machine is connected to power or when the power button is pressed?

 

[quakeworld]

i have a gigabyte mobo and a generic 600w psu. there are no LEDs on the motherboard. sometimes when the waiting-for-it-to-powerup method fails i remove the power cable from the back of the computer (psu) and plug/unplug it until the thing boots. i'll probably take it in to have the psu checked

 

[mfenn]

Sounds like the PSU is being slow at delivering the Power good signal to the motherboard. I'd try testing with a spare (or replacing it).

What are your complete specs?

 

[chusteczka]

A Power Supply Tester like this might help, or you could take it in for testing, or just replace it.

 

[quakeworld]

thanks for replies guys. i had the PSU replaced and all is fine now.