I have an antec 300 case and im using an Intel Q9550 Quad CPU, and installing a Xigmatech HDT-S1283 heatsink...
Basicly, im wondering if it would be more effective to mount the heatsink face backward towards a case fan of the same size as the one on the heatsink (120mm) or horizotaly faceing upwards towards a bigger fan (140mm) both blowing outwards.
Whats the general consensus on what would be a more effective option..
The 140mm top fan is the antec original on a low setting for less noise which gives 47 CFM (can go up to 95 CFM, if i turn it up)
And the 120mm back fan is a Sharkoon 2000 which at max is 75CFM but is is running at 1200-1300rpm. so giving it a guess, its about the same as the 140mm (47CFM)
With my S1283 I set it so that the fan was pushing air towards the fans in the back of the case (not the top), that way when I put on the little spoiler thing, airflow is pushed down onto the voltage regulators (which are under a heatsink on my motherboard, and with all the heatpipes then it's also giving the entire board a little cooling).
April 12, 2009 4:09:34 PM
ok thanks.... any other thoughts on this would be apprieciated
Test both variants yourself. And keep the one that is giving best temps. If You put it to blow upwards it might give better cooling for cpu as normally hot air rise up by itself. If You put it towards back it should help cooling Ram as is drawn over the memory. And then blown over voltage regulators helping to cool them, You could bent 2-3 bottom fins on heatsink to guide air towards voltage regulators.
I would probably stick with traditional blowing to the back.