Epox 8rda3+
athlon 2500 barton
512 ddr
80 gig WD SATA
Radeon 8500

The problem started when I replaced the Radeon with a Geforce FX 5200 128mb video card. The computer would freeze when XP would normally be loading up. Sometimes it will hang on a black screen, sometimes it will go to a blue screen that says "BAD-POOL_CALLER".

I have replaced the original card and tried booting from an XP cd. When it says "Boot from CD ..." it just hangs.

When I try to go into safemode it stops on a black screen with a command line that reads " multi(0)disk(0)rdisk(0)partition(1)\windows\system

I have tried different xp disks and also tried a NTLDR Fix boot disk, but I can't get anything to boot. I have reset the bios many times, and my boot sequence is set to CDROM then SCSI\SATA.

Any help would be greatly appreciated.