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Problem with vid card or motherboard

I run Windows 2000 professional. I started getting IRQL_NOT_LESS_OR_EQUAL bluescreen errors about a month ago. Never could figure out why it kept crashing. But then 2 days ago, my PC started freezing up and taking about a minute to respond to each click. So I decided to reformat and reload. I reloaded and now I can't set up my vid card. It's using the VGA adapter and doesn't give me any option to change it. I have a GeForce2 GTS card, and I installed the nvidia drivers, and Device Manager says it's working, but in the display settings, it's still using the VGA adapter and there's no way to change it.

So, I crack open the case again and take a look. The fan on my vid card isn't running. So I try blowing the dust out of it and it seems to be spinning ok, so I'm guessing that either the card is dying, or possibly the AGP slot isn't getting enough power. So, now I'm not sure if the problem is my card, the motherboard, or the power supply. Is there any sort of diagnostic software that can tell me if the slot is getting the right amount of power? Or do I just have to go find another vid card to swap out? And possibly another P/S as well? Any help on this would be appreciated. I don't really have access to spare hardware, so if there's some way to figure this out without doing that, it would be very helpful.

Thanks!
 
There are some brands of nvidia cards that are/were notorious for bad fans, which will cause all sorts of problems with video. Fan replacement is your first option. Reseating the card, of course, in the AGP slot would be prudent. The fans are very inexpensive. Just make sure you don't get some big oversize thing.
 
Interesting. Didn't even know it was possible to replace the fan on the vid card. It's an Asus brand card, btw. I'm also getting some ugly redraw problems on the screen. Have been ever since I reloaded. Starts during the bootup actually. Even the little progress bars while loading windows are messed up. I'll have to see if I can get a new fan. Gonna see if I can find someone to borrow a P/S from just to test that too.
 
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