Sidney

The SI-120 is designed to fit all known Intel P4 motherboards using the stock P4 heatsink retention bracket and AMD K8 motherboards with a supplied adapter. It's compatible with AMD Athlon64 FX 3200+ (socket 939/940), Athlon64 3200+ (socket 754) and Intel Pentium 4 socket 478, 2.5 GHz and above.

TEST RESULTS

Heatsink Case Temp Ambient Temp C/W Die Temp¹
SI-120, 2994 rpm, 63 dBA 32.7 C 24.8 C 0.14 29
SI-120, 2583 rpm, 59 dBA 32.4 C 23.8 C 0.15 30
SI-120, 2006 rpm, 51 dBA 33.1 C 24.3 C 0.15 30
SI-120, 1511 rpm, <50 dBA 34.0 C 24.5 C 0.16 32
SI-120, 984 rpm, <50 dBA 35.9 C 25.6 C 0.18 35

http://www.overclockers.com/articles1254/

__________________
lazyman

Opteron 165 (2) @2.85 1.42 vcore AMD Stock HSF + Chill Vent II

Sidney

Glad my digital sound meter works well, although I don't know <50dBA is down to what level. 51dBA is about right for 120mm fan at ~2,000 rpm from 36" away without a case to block some of the noise.

__________________
lazyman

Opteron 165 (2) @2.85 1.42 vcore AMD Stock HSF + Chill Vent II