As my 2008 3,1 Mac Pro begins to enter its sunset years with no updates in sight, I've been trying to get a little extra performance out of it without spending too much money. I'm under the impression that the Xeons in a MP's should allow some degree of OC'ing without heat issues due to their conservative design. Using CPU-Z & SetFSB, I should be able to achieve this. In SetFSB, I believe I have the proper Clock Generator selected for my E5462 (ICS932S421BGLF), and I'm able to "Get FSB" without any issues. I can even increase the bus speed by about 5 MHz without issue. Anything above that causes a freeze & the fans to spin up. I promptly do a cold shut down, which resets the bus speeds. I know I've read users having a similar experience on MP's, but I can't seem to find it. Has anyone had any luck with this? Thanks!