I have a problem which I expect is due to a corrupt BIOS chip. I'll explain everything I've done, so someone can perhaps figure out what I've done, and how it can be fixed.
A friend of mine asked me to format and re-intall windows due to it running very laboured and slow (I did add some RAM to help with speed). So, I used my old XP disk, but during set-up, there were quite a few files which couldn't be installed. XP then tried to start, but froze on the black XP screen with the blue progress bar running accross. I suspect the XP disk was damaged, so I tried again, using another XP disk, but it kept freezing in exactly the same place.
I then put another hard drive in, and had the original as the slave, and tried installing XP again, but still had the same problem. SO, I disconnected the slave, but no change.
I tried resetting the CMOS, and took the battery out a few times, for up to an hour, but no change.
I then got a hard disk from another computer with a working copy of XP on it, but with this one, it would go to the black screen asking whether you want to start in safe mode, but no matter what option I choose, it goes to the Blue Screen of death, with a 0x00000007B error.
I'm really desperate for help, as this is my friend's machine, and I'm worried I stuffed it up with a corrupted copy of my Windows XP disk.