Help with CPU Upgrade

[95BlackGA]

BTW, when I looked on the current bios, it only shows three cores.

You have to turn EC Firmware to Hybrid. Should be in M.I.T. (Press CTRL + F1 if you don't see it) Then Advanced Clock Calibration. Set ACC to AUTO. If that doesn't work, try setting it to ALL.

 

[Palomino]

Crashed it. Just kept cycling through startup, then blue screen of death.