(Help) Computer power glitching.

[Iceman1330]

Hello all, I have recently ran into a spot of trouble with my computer and hoped the nice folks at the [H]ard forums could help me out.

To start everything off let me give you the specs of my computer.

DFI LANPARTY UT nF4 Ultra-D
Athlon64 3000+
2 x 512Mb Corsair XMS CMX512-3200C2
ATI X800XL
40gb Maxtor 7200 rpm HD
80 Gb Seagate 7200rpm HD
520W skyhawk modular power supply
1 Danger den watercooling setup.

Now on to the meat and potatoes of the problem.

Here is the short explanation of the problem- Every-time i press the power button (whether it be the power button on my mobo or my chassis power button) the Power supply flicks on for about 1/8th of a second. Enough to get the red LED's on the bottom of the mobo to flash and the fans to start moving.

Now here's the back-story and my theory of multiple causation.-

I recently installed a watercoooling system in the pc. Improperly. Not so much that it was non functioning or leaking, but to the point where i had to ghetto rig the entire system to get it to fit in the case. There had been absolutely no leaks, and even if there was I was using MCT-40 coolant from Danger Den. After installing the watercooling it was running fine. Speed ahead two weeks, I am moving my computer to a LAN party. I am in my house and walking through my kitchen when one of my dogs jumps up and topples me and the computer to the ground. I look inside, no apparent damage everything stayed put, there are no leaks from the Water cooling system. I get to the party and try and turn on the PC.... No luck. It flashes on then just turns off. So I go through the basic routine of isolating the problem. I first put the case on its side, and viola! it turns on. So i try it standing up, nope. So I think it might be its orientation, so I put it back on its side, nope still has the power flash. So i open up the side panel and take out the video card, and Viola it now doesn't flash. Put the card back in, flash, out, no flash. So in the interest of making sure everything is hunkey dory i take every single piece, sans CPU off the mobo, and then plug it all back in; vid card included. And woohoo it works. But at this point the computer is not where it needs to be so i have to power it down and move it, when i get it to its correct spot...power flash.

So this is what I have been doing with it, and just recently (this morning) it has decided to flash no matter what I do, wont even power up now.

Suggestions?

 

[Viper16]

Do you think something might be lose in the PSU? if the warranty is over with I would take a look inside the PSU to see if something is loose, but be very careful because you could get shocked pretty heavily. I belive it has to do something with the psu and its cables or just the PSU itself. good luck. Do you have a spare psu you could use to try it out?