I bought two of these boards from ZZF in February. They came with a May 2007 BIOS, so in order to get my SATA drives to work with AHCI, I needed to flash the BIOS, which is OK without a hard drive but a "no go" without a CPU. So, I don't know about Wolfdale chips working out of the box, unless the shipped BIOS you get is up to date. As far as OC, I have my stock HSF e6600 2.4Ghz going at 2.91GHz stable under Prime95 and OCCT without ANY modifications, other than increasing the FSB to 1290 under the Manual options of Fox Control in the BIOS. Temp goes to 65C under stress but stays at 38C normally. With better cooling... and adding more juice... 1333 should not be a problem. AAMOF, I got to 3.01Ghz with the stock HSF and increasing the voltage to 1.3 but the temps went up to 71C, although OCCT and Prime95 were stable after 10 hours. I didn't like hearing the temp alert alarm going off though. The cooling system is key. Nice board for the dough.