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Swiftech MC370: Does the default fan push air towards the heatsink, or pull air away?

N

Noriaki

Lifer
Swiftech MC370: Does the default fan push air towards the heatsink, or pull air away?

Getting one of these boys fanless (already have a 60mm fan).

The default fan config pushes air towards the pins right? It's only the Alphas that pull air away?


Ed:
By push air towards I mean "blow", and by pull air away I mean "suck". But since all fans suck and blow, and the terms reversed depending on which side of the fan you are looking at, I don't like them.
 
I always wondered about that. My volcano II pushes air onto the heatsink. I wonder if it makes a difference if it is pulling air away from the heatsink. Anyone tried testing it out?
 
That's what I thought, thanks Maverick.

Nice review by the way...I like the sound of that clip...since I think I may have crushed a core with my wimpy cheap-o heatsink....

I can get one for $30 or so to 🙂 It comes fanless but I don't like the noise level of the stock fan anyways, I have a YSTech here I want to use instead 🙂
 
Yea, the clip is great, inching on being perfect (just don't wanna say it is because nothing is perfect 🙂). Actually the Papst fan is 4dba quieter than the Delta but seems to be a lot more. This is because it uses 5 fins VS. 7 fins and creates less turbulence. Coupled with a rheostat this would be the perfect solution. Of course the Y.S.Tech is also great and is what I use because it's an overkill for my Duron anway 🙂.
 
I thought you already had this sink Noriaki? man I am still trying to decide between this one, the taisol copper bottom, the switech 462 and the glaciator.
 
I'd try both to see what works better for you.

The reason I say this is that I've got a OCZ Gladiator and the default config is to blow onto the heatsink. I reversed the fan to "suck" and my CPU temps dropped a couple of degrees.

I dunno, it could be because of the thin fin design which hampers the "blow".

Of course, this is just one heatsink which is not the one in question. YMMV
 
Air flow across the fins will be more uniform if the fan is blowing air into the fins. Also by blowing into the fins the fan motor is not exposed to the high heat coming from the cpu. This is the standard configuration for all electric fans to protect and extend the life of the motor.
Exposing a motor to high heat not only causes the motors winding to run hotter (and shorten the life of the insulation), it also increases the shaft to bearing clearance (higher vibration), and due to running hotter the motor uses more amps.
 
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