^+1 ... JP got it right. Using "XMP profile" OC's ya box to much higher BCLK
Set AI Overclocker thingie to manual
Set DRAM speed to 1600
Set CAS timings to "what's on da package"
Assuming ya want to OC processor (what us it BTW ? ....I'm assuming 950/960), set BCLK to 160
Save and exit
If ya pass OCCT runs for CPU, optimize your voltages and get them as low as they can go while remaining stable. My son's R2E uses several saved OC profiles for his 920 (Megahalems cooler). DO a final overnight run w/ P95 to confirm.
24/7/265 Profile - 178 BCLK, Vcore = 1.1125, DRAM Voltage = 1.5625, Core temps = 55,56,58,56
Gaming Profile - 200 BCLK, Vcore = 1.2750, DRAM Voltage = 1.5825, Core temps = 70,71,73,72
OC and voltage optimization procedure can be found here:http://vip.asus.com/forum/view.aspx?id=20081220191040237&board_id=1&model=P6T+Deluxe&page=1&SLanguage=en-us