Problem, Bad caps as culprit?

[Amaranthus]

After much research i came across this site. Lots of great info here.

It all started when i moved my pc..like i've done many times before...plugged it back in, turned it on, the fans booted up to the high rpm (which it usually does for about 5 seconds, but then nothing loaded....no BIOS or anything.
The moniter+mouse didnt connect/register...it just sat there with all case/cpu/psu/gfx fans running at a slightly higher than idle rpm.

So i took out components to narrow the problem down, nothing. I ended up swaping PSU...still nothing...swapped a new GFX, still nothing.

Then i put together all the original parts...turned it on and it booted (although wait time inbetween BIOS load+windows splash screen load was extra long + it asked me to activate windows...weird)...

So...i thought well, maybe ive got it. But i then turned off, unplugged, put in a pci slot card, turned back on and the problem occured again.

Finally, i unplugged all connections from the PSU to the MOBO...plugged them back in...and turned on..and it worked.

Now: Whenvere i unplug the computer (psu to outlet) i need to disconnect all connections from PSU to Mobo...then reconnect them....then connnect power to outlet before i can reboot...or the original problem will occur.

Im really lost here. I havnt seen any bad physical signs of bad caps...but ive looked over the symptoms page's and it seems like it may very well be a possibilty of bad caps on the mobo and/or psu.

Any info would be greatly appreciated. Thanks.

[linuxguru]

Re: Problem, Bad caps as culprit?

Most probably bad caps in the PSU - start with those on the +5Vsb rail.

[Newbie2]

Re: Problem, Bad caps as culprit?

I ended up swaping PSU...still nothing

Looks like he already tried the PSU.

[shadow]

Re: Problem, Bad caps as culprit?

Now: Whenvere i unplug the computer (psu to outlet) i need to disconnect all connections from PSU to Mobo...then reconnect them....then connnect power to outlet before i can reboot...or the original problem will occur.

That is a very strange problem. If you do suspect the motherboard capacitors, then tell us the brands and the series if possible of the capacitors. If they are known bad capacitors, then the forum members can confirm if it is likely that they are bad or not.

[Amaranthus]

Re: Problem, Bad caps as culprit?

Thanks for the replies.

To update: I noticed that if i bumped the tower a certain way the comp would freeze...i went through lighting figiting with components(carfully and only touching parts i know could be touched while it was powered on) and concluded the gfx card (pci-e) waas a little loose and causeing it to freeze. After i found that out and rebooted a few times. The process before: disconnecting all conections from psu to mobo, would no longer work to boot up.

So im back to square one kinda. But ive changed GFX cards too...and played with the fitting in the slot and im having the original problem.

What i will do now: Check the model/manufaterers/type of caps on the mobo, then post them here.
Going to bring the comp to the guy who helped me build it and let him spend a few days on it.

Thanks for the help. Whatever the problem may be i will post it here when we figure it out, if its not bad caps, at least it might be helpful to someone at somepoint.