Can't reload win xp after computer crashed!

[soupdog23]

Was having some issues with freezes & drops after upgrading my vid card from a Radeon 9200 to a pny geforce 6800 GT. Someone suggested using the program 'DriverCleaner' to find and remove any old ATI drivers I may have missed. In the middle of the cab cleaning, my computer locked up and I had to restart it. I couldn't even get it to boot in safe mode for a while. I finally got it in safe mode and reinstalled all of my nvidia drivers. Everything worked for a couple of days until I started getting frequent repeating errors with MS Messenger that windows would want to send off to MS support. I uninstalled MS messenger at that time because I don't use it anyway. After restarting my computer, I started getting BSOD's when windows would start, 'Page fault in non-paged area' or 'Device driver has a pool' were the ones I was getting. Tried to boot in safe mode, but system would lock up after loading drivers, last one loaded would be 'mup.sys'. Tried to reinstall windows, but BSOD would come up after drivers were loaded....Suggestions?

One thought I have is to buy a second HD and install that as my master HD and install win XP on that to try and set my existing HD to slave in order to pull off my important data and then reformat that drive to NTFS from fat32.

ECS N2U400-A
AMD Athlon XP3200+
512MB Kingston DDR400MHz Ram
Coolermaster X Deluxe II Fan
WD 80GB HD 7200rpm
PNY Geforce 6800 GT 256MB
Soundblaster Audigy 2 ZS
Enlight 420W PS
Aspire X-Infinity Turboserver ATX Case

 

[imported_rhfactor]

Try to repair windows XP (assuming XP) with the install disk, not the repair console, but repair option in the full install.

 

[soupdog23]

Well I got it running but I had to set my FSB down to 100Mhz and set my FSB spread spectrum to .50% in my bios to make it happen, which sucks because it's a 400Mhz FSB on my mobo and PC3200 memory.

Any suggestions on how I can tweak this monster to get the full capabilities of my FSB?? Is there something I can do to test the mobo to see if it's working properly?