I had OCed this beast to 1.4ghz before but that was when I had the Delta fan. Since then I've sold it and put on some crappy generic HSF. I've got (2) Sunon 80mm case fans with the factory (2) Antec 80mm case fans. At the moment temps are 25C (Case/MB) and 50C (CPU). The CPU is set at 10.5x133. I may try higher later. The fsb doesn't want to go higher than 133 after I've changed the multiplier on the CPU. Oh well, a 400mhz OC with a generic HSF works for me
