The retail 800 that I purchased at Buy.com is topped out at 982MHz with a Alpha 6035 & Delta Black Label fan. Never gets more than 40 degrees Cel. So I know its not a cooling thing preventing me from running stable at a Gig. It will boot Windows and run at a Gig, but is not stable in 3DMark2000, and will not run UT for long. I tried it with a straight multiplier increase running the memory at 133MHz, and also a combo of multiplier/FSB adjustments. It kicks ass at 982 with the multiplier set at 900, and the FSB at 105/35 + 4 (109) The RAM is running at 144MHz CAS2,
and gets a Sandra memory benchmark of 531/609!!