Before you go cutting wires, try running the drive on cable select. I had a problem on my new nforce2 board with a WD 1200JB drive.
It would boot with the XP cd, and installed fine, although the post screen seemed to take forever (about 5 mins), and then on a reboot I got a disk boot error..
but with the cd in, it would boot back up. I was going to try the hd in another computer to see if it would boot from it but just before this I looked at
the drive and said to my friend "it should work on master, I don't have to use cable select do I?" cause we were both baffled, and it had arrived on
cable select but I have never jumpered a drive to cs before, I always used master or slave.
Well, to make a long story shorter, I put the drive back in and it booted no problem without a cd and the post was only about 10 seconds.
It might not help, but you would be surprised if it did.. I was.
You might have to manually set your cpu to 166fsb in your bios. Yes, there is a jumper for 133/166, but try doing this anyway.
If your cpu came up at 1250mhz then it would be the 12.5 multiplyer x 100mhz. At 133fsb x 12.5 = 1663mhz, ie. a 2000+ cpu.
It seems it didn't select the right fsb, so do it manually, no biggy.