Unable to find shutdown temps in BIOS, opened everything. I have reloaded XP and still no real difference
Surprised that there are no cutoff temps in the BIOS. Not surprised that the Windows re-install didn't help; most likely a temp, driver or hardware issue, I think.
To install your new CPU, first remove the old one: shutdown and unplug computer. Ground yourself. Unplug CPU fan lead, unfasten heatsink from CPU socket, lift lever on CPU socket, gently lift heatsink and CPU out of socket.
If you're going to re-use the heatsink, remove the CPU, remove ALL thermal compound from heatsink (a credit card is good to use and then finish cleaning with isopropyl alcohol).
To install: raise lever on CPU socket, align CPU with socket - examine closely to be sure that socket and CPU are matched, gently place CPU into socket, gently press down on CPU while locking the socket lever down, place a small amount of thermal compound (about 3/8") onto CPU, fit heatsink to CPU and socket, plug in fan lead.
Double check to be sure that fan lead is properly connected! Check all motherboard and other connections to be sure that you didn't accidentally disconnect anything.
After you get a successful boot, install the AMD drivers per AMD instructions.
Let us know how you make out and if you are still having problems.
Best of luck.