Suck or Blow?

[Imaginer]

Would you have the heatsink fan suck air into the heatsink or blow it away from the heatsink?

Also, Same question but put an exhaust side fan right near the heatsink?

 

[bdjohnson]

totally depends on how your heatsink is designed. it all depends on the location and design of your heatsink.

 

[Corporate Thug]

almost all the time you are better off with it blowing on the cpu

 

[NokiaDude]

Always blow.

 

[screw3d]

Always try and see for yourself.

 

[xSauronx]

Originally posted by: Imaginer
Would you have the heatsink fan suck air into the heatsink or blow it away from the heatsink?

Also, Same question but put an exhaust side fan right near the heatsink?

when youre hot in the summer do you feel cooler with a small fan blowing on you or away from you?

 

[lenjack]

it's a personal decision that can only be made by you and your partner. oops.

 

[lavaman]

Have it blow on to the CPU.

 

[smahoney]

It depends on the heatsink design, the internal airflow of your case and access to cooler air. If you have a case that has a vent over the cpu you may be better off blowing down onto the heatsink. If you have a ducted fan mod and good rear fans you might be better off pulling air away from the heatsink. Some of the Alpha and Swiftech heatsink are designed to pull air rather than blow air onto them. A top blowhole can also impact performance. Try both and see.

And once your done, switch to H2O

 

[JBT]

as many have said it depends on the heat sink most of todays are for blowing but im sure a few are around for sucking still.

 

[ragazzo]

here's an option:

suck air in below
blow air out above

heat rises.