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Anybody ever try...

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Bruno

Member
Joined
Dec 26, 2000
Location
Location: Location:
anybody ever try blowing a fan, at the backside of the mobo?.

I have a little H/S fan, that wont protrude... thinkin' right behind the cpu.

what do you think? think it'll do any good, or help at all?

Bruno
 

Yodums

Senior Member
Joined
Oct 5, 2001
Location
Ottawa, Canada
I'm not too clear about this, but it should help. I've seen people get a dremel and cut the metal motherboard chassis where the back of the CPU, and chipset lay on the motherboard and are suppose to lay on the chassis to get some more air to the chip.

Yodums
 

Tiger

Member
Joined
Apr 6, 2001
Location
UK
That's been tried and someone even tried cutting out the section of motherboard below the cpu and blowing a fan over the bottom. Neither resulted in any significant cooling. The best results have always been achieved by getting air as close to ambient temps as possible to the entry of the HSF.
 

WillysNut

Senior Jeep Nut
Joined
Apr 18, 2001
Location
NY, USA
Hey Tiger..I think you're referring to this thread at the Firestorm Boards. Most likely a Hoax.

Here's a casemod at chicks hardware that has a fan on the right side (backside of mobo) panel. Looks pretty sweet.
 

Yodums

Senior Member
Joined
Oct 5, 2001
Location
Ottawa, Canada
WillysNut said:
Hey Tiger..I think you're referring to this thread at the Firestorm Boards. Most likely a Hoax.

Here's a casemod at chicks hardware that has a fan on the right side (backside of mobo) panel. Looks pretty sweet.

Not a bad idea, at all. I like how he used a backup fan to save the processor from dying if the pump failed.

Yodums
 

Koooler King

Member
Joined
Nov 21, 2001
Location
North America
Any cooling or air flow to cool is a good thing. However, I experimented with this a bit, and the problem is that chip and board designers plan and design for the heat to go out the top side. More gains can be had there, for example, I played with some cooling of a P4 chip a while back and wondered about the back side of the board. With an average heat sink, say a thermal resistance of 0.30 deg. C / Watt, 99% of the heat load goes out the top of the chip and heat sink. The motherboard itself, has a thermal resistance of about 20 Deg. C / W out the back side. At the same heat load, only about 1% of the heat load goes out that way.

Until somebody creates a specific, two-sided mobo, it is not yet worth the trouble to cool the back side. Good luck.


Koooler King