I like to address a popular misconception, namely that the Alpha PEP66 and GlobalWin FOP38 are noisy. I raise this point because newcomers looking for a better cooling solution might shy away from these excellent products because of excessive noise.
The PEP66 and FOP38 are NOT noisy. You could put a hundred of each in a dead-quiet room and not raise the decibal level by 1.
The PEP66 and FOP38 are heatsinks: passive metal objects that do not create noise (or at least any noise audible to the human ear).
What *does* create noise is the fan attached to the heatsink. A variety of fans is available from different manufacturers (not the manufacturer of the heatsink). Fans are rated in cfm (cubic feet per minute). The higher the cfm, the higher the cooling efficiency -- and generally the higher the noise level.
The PEP66 and FOP38 are high-performance heatsinks. To maximize this performance vendors often bundle them with the infamous, noisy Delta black label fan -- one of the highest cfm 60mm fans available.
But a good vendor will give you a choice when you purchase a PEP or FOP. The trick is to get a fan that is strong enough but at the same time quiet enough to live with.
My solutions:
Celeron 600@900: PEP66 with Sunon 23 cfm. This Sunon gives decent airflow and is quiet. Max cpu temp with Seti or Prime95 is 30-32C, with absolute max of 35C (CpuBurn). One 80mm intake bottom front, one 80mm exhaust top rear, room temp 20-23C.
Duron: PAL6035 with Delta black label wire to 7v/12v toggle. 7v setting is reasonable quiet but still efficient cooling-wise (max cpu temp with Seti or Prime95 is 35-38C, with absolute max of 41C (CpuBurn). One 80mm intake bottom front, one 80mm exhaust top rear, room temp 17-20C. The full-speed setting (12v) is there if I need it. I recommend this approach to *anyone* using the Delta black label fan. It is not difficult to do.
The PEP66 and FOP38 are NOT noisy. You could put a hundred of each in a dead-quiet room and not raise the decibal level by 1.
The PEP66 and FOP38 are heatsinks: passive metal objects that do not create noise (or at least any noise audible to the human ear).
What *does* create noise is the fan attached to the heatsink. A variety of fans is available from different manufacturers (not the manufacturer of the heatsink). Fans are rated in cfm (cubic feet per minute). The higher the cfm, the higher the cooling efficiency -- and generally the higher the noise level.
The PEP66 and FOP38 are high-performance heatsinks. To maximize this performance vendors often bundle them with the infamous, noisy Delta black label fan -- one of the highest cfm 60mm fans available.
But a good vendor will give you a choice when you purchase a PEP or FOP. The trick is to get a fan that is strong enough but at the same time quiet enough to live with.
My solutions:
Celeron 600@900: PEP66 with Sunon 23 cfm. This Sunon gives decent airflow and is quiet. Max cpu temp with Seti or Prime95 is 30-32C, with absolute max of 35C (CpuBurn). One 80mm intake bottom front, one 80mm exhaust top rear, room temp 20-23C.
Duron: PAL6035 with Delta black label wire to 7v/12v toggle. 7v setting is reasonable quiet but still efficient cooling-wise (max cpu temp with Seti or Prime95 is 35-38C, with absolute max of 41C (CpuBurn). One 80mm intake bottom front, one 80mm exhaust top rear, room temp 17-20C. The full-speed setting (12v) is there if I need it. I recommend this approach to *anyone* using the Delta black label fan. It is not difficult to do.
