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High Case Temps

post #1 of 9
Thread Starter 
Hi all. I have a CM Centurion 534. I put an Icage with a 120mm fan in the front 5.25 bays, blowing into the case, which takes up the bottom 3 slots. I have another 120mm fan on the side, again blowing in, and of course one on the back of the case blowing out. I have these 120mm fans, the 1200rpm version.

My computer is NECESSARILY in a computer desk, which is enclosed. There's a door on the front of the desk, but the temps don't vary much with it open, 1/2C. My ambient temps are 24-26C (26 in the hottest part of the day) in that room. Speedfan reads my case temp as 37C.

I really don't have the time, skill and most importantly the right tools for case modding. I'm just wondering if the way I've got the fans set up is ok, and if there's anything else I can do to get my case temps down. Thanks y'all!
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4F@H
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post #2 of 9
The only advise I can give is for you to take out 3 of the 5.25 bay covers and wedge a 120mm in it's place.... but that won't do you much good if your case is already in a improperly ventilated/restricted space... the hot air will just keep on being produced without a way to dissipate it and you'll obviously see high ambients
post #3 of 9
Thread Starter 
I've got a 120mm in the front in an Icage. I'm curious about airflow, since I don't know anything about it. I've heard that you should have more pressure blowing out than in, and I've heard that the opposite is true. Anyone know of some empirical evidence on airflow in comp cases or...anything that might help me understand the basic physics involved to apply to my specific situation?

Thanks Killa, is your rig all nice and aesthetically pleasing now? FYI, I still ended up 10C cooler with my snazzy new VF900 on the card
4F@H
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4F@H
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post #4 of 9
Thread Starter 
Anyone?
4F@H
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4F@H
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post #5 of 9
A positive intake pressure is good (or higher air volume going in that out), it helps to overcome the obstacles in the case which inhibit air flow.
If you've got wires hang all over the place, get them organized and out of the way of the air flow where ever possible.
    
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post #6 of 9
you could knock some holse in the back of the "desk" so the warm air can get out the back.
still frags n00bs
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post #7 of 9
Both negative (Antec Sonata is good example) and positive pressure cooling work if airflow is well designed and impedance of airflow holes in case is kept to minimum in which situation having fan in both ends of airlow path can cause just more additional noise than airflow because fans in series rises pressure pushing air, not amount of maximum airflow.

But neither of these or adding fans can really help if PC is in warm enclosed space. PC with smaller heat production and components designed to operate at higher temperature would be best solution to that... like Panasonic Toughbook.
(60C sauna... Freezing! )
post #8 of 9
As already stated, you will want to ensure that the enclose that houses the case is also well ventilated. Having a well ventilated case enclosed in a poorly-ventilated chamber or enclosure makes the potential efficacy of the former null.

I mean no offense, but since you need to have your PC in an enclosed desk then you will need to ensure that the desk also has adequate airflow that is proportional to or greater than the case itself.



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post #9 of 9
Thread Starter 
There's a door on the front of the desk. There's an opening on the side wall, it's underneath the top part of the desk, the open space for your feet that most desks have. The side fan of the case lines up with this opening pretty well. The back of the desk is also open, however the desk is pretty close to the wall, ~3" from the wall to the back of the desk, then another ~2" from the back of the case to the opening of the desk.
4F@H
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4F@H
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CPUMotherboardGraphicsRAM
I7 2600K MSI P67A GD65 B3 EVGA GTX 480 SSC+ FTW 2x4GB G.Skill Ripjaws 1600 1.5V 
Hard DriveOptical DriveCoolingOS
Spinpoint F3 LiteOn DVD-RW H70 w/ 2 AP15 Win7 Pro 64 bit 
MonitorPowerCase
E230H 23" 16:9 NZXT Hale82 850 Xigmatek Asgard Pro 
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