just got a cusl2-c. The temp readings under load for my c600@1015 retail hsf default voltage now average 66C!!! No problems with heatsink being off center. I had a soyo 6ba+111 (dead after 2 years of overclocking service RIP)that ran this same cpu at 1053 1.8v at 48C full load. What gives? I remember having the same problem with p2-99.