Will the NPH-1000 kick butt or rise in temperature like a runaway nuclear reactor? Who knows, at Frostytech we rely on hard numbers. nPowertek's NPH-1000 heatsink is a predominantly copper heatsink with an aluminum base, four heatpipes and a 95mm fan. The heatsink is compatible with AMD Athlon64 socket 754/939/940 & AM2 sockets, and Intel Core 2 Duo socket LGA775 CPUs.