PC Was Shutting Itself Off, Replaced PSU, Now Dead... HELP!

[Nighthawk69]

Hey all-

I'm having some major issues with my secondary PC. It is a T-Bird 1.1Ghz CPU on an MSI mobo and we were having problems with it shutting itself off on its own for quite sometime after rebuilding it into a new PC (the board and chip sat for a while in an anti-static bag and box while not in use). After fooling around with it a lot trying to troubleshoot the issue, I came to an 80% conclusion that the generic CompUSA 300watt ATX PSU was giving it some issues. The system would shut down after about 20 minutes of use, then upon powering it back up it would shut down after about 2 minutes and sometimes not even boot. This originally lead me to believe that it was heat, but after running the PC in the BIOS and letting the temperature get nice and high and it not shutting down, I began to look elsewhere.

So, I replaced the PSU with an Antec 350 watt ATX PSU and it ran for about 20 minutes, then the HDD light stayed on solid and we lost everything, but the PSU and fans continued to run. I have let it cool off for a while, reseated the CPU, etc. and it will just run the fans and PSU upon power on. NOTHING else... no signal to the monitor, no nothing. All of the MSI LED's are red.

Anyone have suggestions of ideas?

Thanks!!

 

[render]

more likely the mb is dead.

 

[Nighthawk69]

That's what I'm thinking now. I guess the issues before were something on the mobo going out.

 

[mechBgon]

Just to be sure, is the heatsink on in the correct direction? The link in my signature has a photo of what to avoid, if you're not positive

 

[pspada]

And check the capacitors on the board. It might be suffering from cap death.

 

[JamminJimmy]

This sounds exactly like what the Blaster Virus does to infected computers.

 

[pspada]

The blaster worm caused Windows XP to reboot before it got to the desktop. I've not yet seen a single case where it scrooged the hardware.

 

[Overkast]

My guess is the mobo as well.

 

[Nighthawk69]

Yeah, everything is installed correctly CPU/HSF wise... plus I would think it would at least power up to some point even if there was no HSF on it (although it may need to be plugged in depending on the BIOS). But, it doesn't.

So I guess the mobo is the problem... Any recommendations on a Socket A mobo to pickup right now for not too much $$ for a T-Bird 1.1Ghz? I'm kind of out of the loop on AMD items at the moment and more into Intel, but I'll admit I haven't been reading a ton on the newer releases as of late. Suggestions?

Thanks!

 

[pspada]

The ECS K7S5A Pro can be had for ~$50, and it will run that processor just fine.

 

[beatle]

The BioStar M7VIG PRO has integrated video, lan and audio for $56 shipped @ newegg. It also supports SDRAM and DDR. I'm using one on my tbred right now. I'm pleased.