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Drilling behind motherboard for airflow?

post #1 of 10
Thread Starter 
I was thinking that, even with watercooling, my motherboard must be producing some heat on the reverse side. The more overclocking & voltage bumps would seem to make this higher also. So I was thinking of cutting an ellipse or series of circles out of the tray behind my MB to help with cooling / heat escape.

I know that Hiper makes some 80x15mm thin fans rated at 19db that should fit - if I wanted to make the cooling active.

So, my question is this: has anyone tried this (or know of a second cousin who has)?
Does it affect temps at all or is it just for play?
Any thoughts or pics are appreciated.
Thanks!
Imp
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Imp
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post #2 of 10
I've seen it done. Some cases come with an opening in the mobo tray behind the CPU for extra cooling. It has cooling benifits.
I'll be doing just that soon (out of dremel cutting disks right now XD ) and I'll take pics if you still need help.
HateSymptomsX
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HateSymptomsX
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post #3 of 10
don't think this is really necessary, just add some fans to your case so you get some air flowing around some components and you should be golden.
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Smurf Box
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post #4 of 10
It will almost certainly help, but I doubt that it will help much. Unless you have time to kill, not worth the effort IMO.
Unbuilt
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post #5 of 10
Been doing that for yeas. It's an old overclocker's trick. A 40x10mm fan directly under the CPU socket is what I usually use.
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post #6 of 10
My old CM690 had a fan slot for a backside cpu cooler. With the fan on it dropped the tempuratures by 2c.
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post #7 of 10
Quote:
Originally Posted by xlastshotx View Post
My old CM690 had a fan slot for a backside cpu cooler. With the fan on it dropped the tempuratures by 2c.
Very interesting.
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post #8 of 10
Thread Starter 
Hey it sounds like I'm not the only one learning stuff.

All joking aside - I think I'll try it for grynz if nothing else. I was thinking of an 80x10mm. I was also thinking, since I'm running watercooling, anything I can do to reduce thermal load on the fluid would help.

As far as airflow, I'm running a rocketfish with 5 Scythe "SLIP STREAM" 120mm Case Fans 1200 rpm, sleeved. These seem to be the sweet spot for CFM and db (and tone). I'm going to guess I'm ok at that point with airflow (3 in, 2 out)

Still love to see pictures if anyone has them (or can point me towards a FAQ on it). Thanks again all.
Imp
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post #9 of 10
Thread Starter 
Haven't seen anything really more come through in the last few days - still love to see pictures if anyone has them (or can point me towards a FAQ on it).
Imp
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Imp
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post #10 of 10
bairly any heat is created at the back of the motherboard :/ It would just be there for looks.
Finally Perfected
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Finally Perfected
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