Fan in or out

Asmodeus · Jan 25, 2005, 09:46 PM

I just installed my thermalright XP 120 Heatsink and what I am wandering is, is the fan suppose to blow in on the heatsink or blow away from it?

**MIG-31** · Jan 25, 2005, 09:49 PM

blow inwards towards the fins,this help remove the hot air inbetween the fins.

mike2h · Jan 25, 2005, 09:55 PM

as mig said. in case you can not tell, most fans have arrows on the side denotating airflow & rotation.

Asmodeus · Jan 25, 2005, 10:00 PM

i have it blowing in, I just couldnt find anywhere in the instructions where it said to blow in or out and done some searching on the net and couldnt come up with anything either.

Seems to be working fine:

Before: 39 idle 53 load
Now: 30 idle 41 load

Drakon · Jan 25, 2005, 10:08 PM

now to blow in, the arrow should be facing towards the base of the heatsink, right? i always get confused by these things...

Quote:

Seems to be working fine:

Before: 39 idle 53 load
Now: 30 idle 41 load

nice, what cpu do u have?

Asmodeus · Jan 25, 2005, 10:15 PM

Yeah the arrow points in the direction the air blows. So arrow pointing towards the heatsink is right. I always plug mine in first and check them to make sure there stamped right.

I have a AMD 64 3000+ @ 2.06ghz

Matth · Jan 26, 2005, 04:55 PM

Most heatsinks work better with the fan blowing in - the turbulence from the fan blades actually helps the cooling, and the blast from the fan penetrates deeper - unlerss the flow is deliberately ducted, the replenishment of an EXTRACTING fan takes the easiest route.

Jan 25, 2005, 09:46 PM	#1
Asmodeus DriverHeaven Lover Join Date: Jan 2005 Location: Altoona, PA Posts: 187 Rep Power: 0	Fan in or out I just installed my thermalright XP 120 Heatsink and what I am wandering is, is the fan suppose to blow in on the heatsink or blow away from it?

Jan 25, 2005, 09:49 PM	#2
MIG-31 HardwareHeaven News Mod Join Date: Dec 2002 Location: Nottingham,UK Posts: 56,821 Rep Power: 471 System Specs	blow inwards towards the fins,this help remove the hot air inbetween the fins. __________________ Please Post Your News Submissions Here

Jan 25, 2005, 09:55 PM	#3
mike2h DriverHeaven Extreme Member Join Date: Nov 2002 Location: norcal Posts: 6,483 Rep Power: 91 System Specs	as mig said. in case you can not tell, most fans have arrows on the side denotating airflow & rotation. __________________

Jan 25, 2005, 10:00 PM	Thread Starter #4
Asmodeus DriverHeaven Lover Join Date: Jan 2005 Location: Altoona, PA Posts: 187 Rep Power: 0	i have it blowing in, I just couldnt find anywhere in the instructions where it said to blow in or out and done some searching on the net and couldnt come up with anything either. Seems to be working fine: Before: 39 idle 53 load Now: 30 idle 41 load

Jan 25, 2005, 10:15 PM	Thread Starter #6
Asmodeus DriverHeaven Lover Join Date: Jan 2005 Location: Altoona, PA Posts: 187 Rep Power: 0	Yeah the arrow points in the direction the air blows. So arrow pointing towards the heatsink is right. I always plug mine in first and check them to make sure there stamped right. I have a AMD 64 3000+ @ 2.06ghz

Jan 26, 2005, 04:55 PM	#7
Matth Flash Banner Hater Join Date: Jun 2002 Location: UK Posts: 3,426 Rep Power: 93 System Specs	Most heatsinks work better with the fan blowing in - the turbulence from the fan blades actually helps the cooling, and the blast from the fan penetrates deeper - unlerss the flow is deliberately ducted, the replenishment of an EXTRACTING fan takes the easiest route.