Tom's Hardware > Forum > CPU & Components > Power Supplies, PC Cases & Case Mods > Top fans necessary?
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Bluescreendeath   07-22-2009 at 08:46:21 AM

Are top fans very good for cooling your system?

I plan to run a nice OCed i7 and two GTX260s, so my rig will get very hot.

My current system has an Apevia Sniper G midtower case - with a top mounted PSU, a front 120mm fan, side 120mm, and rear 120mm.

Should I buy an Antec900, with a bottom mounted PSU, 2 120mm front fans, 1 120mm rear fan, and 1 200+mm top fan?

How much temperature improvements would I see?

thanks

------------------------------ i7 920, E5300
GTX260, HD4870, HD4830
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AKM880   07-22-2009 at 08:49:53 AM

You'll probably see some improvement for cooling since the Antec 900 case has exceptionally good airflow.

Reply to AKM880
wuzy   07-22-2009 at 12:32:18 PM

I had quick look at the internals of your case here. Looks good for a ducting mod, using 3x5.25" bays to make a duct to the CPU fan.

That's the surest way to get coolest air straight from outside for CPU overclocking.

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------------------------------ GTL Ref Tweaking Guide - PM for detail
Brand is for the weak-minded, only product matters.
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Bronze CPUs badge jsc   07-22-2009 at 01:20:41 PM

I like the Antec 900. Cable management is kind of sucky, and it's definitely not a tool less case. But you cannot beat the cooling.

I have the HSF's oriented vertically. I figure warm air want to rise. Why fight physics.

On the other hand, because you already have the Apevia case, wuzy's idea has a lot of merit.

Reply to jsc
Bluescreendeath   07-22-2009 at 05:21:00 PM

wuzy wrote :

I had quick look at the internals of your case here. Looks good for a ducting mod, using 3x5.25" bays to make a duct to the CPU fan.

That's the surest way to get coolest air straight from outside for CPU overclocking.



thanks, do you mean a ducting mod to blow air into the CPU fan or out of it? Cuz my HSF/cpu fan has a fan that blows air directly out the rear fan.

Message quoted 1 times
------------------------------ i7 920, E5300
GTX260, HD4870, HD4830
 Reply to Bluescreendeath
wuzy   07-23-2009 at 05:57:53 AM

Bluescreendeath wrote :

thanks, do you mean a ducting mod to blow air into the CPU fan or out of it? Cuz my HSF/cpu fan has a fan that blows air directly out the rear fan.


As in a typical case setup, that only takes care of the exhaust part. The duct mod concerns the intake of the CPU-HSF, getting fresh air directly from outside.

Go to a building depot and find one of those tin-foil type collapsible duct of ~120mm in dia. For the 3x5.25" bays use some kinda mesh grill cut to size to cover it.

This is about as extreme as it gets, on the concept of air ducting.

------------------------------ GTL Ref Tweaking Guide - PM for detail
Brand is for the weak-minded, only product matters.
Resilient to marketing.
http://farm3.static.flickr.com/2520/3850950213_aea6bbbcfe_o.jpg
 Reply to wuzy
Bluescreendeath   07-23-2009 at 06:31:20 AM

dang...this is why we need mainstream BTX cases. :D

------------------------------ i7 920, E5300
GTX260, HD4870, HD4830
 Reply to Bluescreendeath
neon neophyte   07-23-2009 at 02:56:45 PM

i would have to agree with wuzy. its all about getting airflow that is fresh.

my computer runs considerably hotter with 4 harddrives in it, than it does with one. the whole system heats up. gpu runs warmer, so does cpu. if they werent being fed the air off my harddrives, that wouldnt be as much as a problem.

Reply to neon neophyte
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