Those of you who have Intel Pentium 4 or Celeron D processors on the LGA775 platform should pay very close attention to this. If you are overclocking an LGA775 processor, the Intel stock heatsink is the best non-substance cooler for the LGA775 platform. It can hit really high RPMs and it can cool better than any other aftermarket heatsink. If you are in need of better cooling for the LGA775, stick w/ the stock heatsink for non-substance cooling. However, if you want water/substance cooling then go for it!