cpu case fan

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aasimas

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Hi. Ever since I installed a new gpu in my computer the NVidia gtx 660, the computer gets very hot when i do intense work such as gaming. The temperatures reach at about 60 degrees so I have bougth a case fan for my computer. This case fan will act as a exhaust fan. The port for this is at the rear end of my case. My question is do I install the case fan with the air coming inside or outside(arrow points outside vs inside)?

BTW the case fan is 80mm. I dint jnow if this will helo. Just throwing it out there.
 
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markwp
If you are setting this up as exhaust, the arrow will point outward. You didn't specify whether it was 60C or 60F, but I will assume 60C.

In order to have better airflow, you need to have at least two fans - one as intake (arrow pointing in) and one as exhaust (arrow pointing out). For best results, the intake fan should be larger than the exhaust in order to give positive pressure in the case.

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markwp

markwp

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If you are setting this up as exhaust, the arrow will point outward. You didn't specify whether it was 60C or 60F, but I will assume 60C.

In order to have better airflow, you need to have at least two fans - one as intake (arrow pointing in) and one as exhaust (arrow pointing out). For best results, the intake fan should be larger than the exhaust in order to give positive pressure in the case.

Mark
 
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Dark Lord of Tech

Dark Lord of Tech

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aasimas

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Yes the temps go 60C. i only have one case fan cutout on my case. So
 
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aasimas

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Hey are u suggesting I point the arrow inside? If so the air will bwe blowing inside the case and the point of a exhaust fan is to push that hot air outside.Can you plz clarify. I am installing a exhaust fan.
 
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capt_taco

capt_taco

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Yes, the arrow indicates the direction of air flow, so for an exhaust fan the arrow should be pointing out. Exhaust fans are almost always at the back of the case, as in the diagram. Intake fans to pull in cool air from the front and bottom (and sometimes side panels); exhaust fans to blow hot air out the top and back.

If you mean your case only has a place for one fan, period, I would seriously consider getting a different case if you use the machine for gaming.


 
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markwp

markwp

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Warm/hot air will naturally seek an escape route through vents, cracks, etc. By using a single fan on intake (pointing in), you will be "forcing" cooler outside air into the case which will cause warmer interior air to seek an escape. As I noted before, you want to maintain positive case pressure (force air to seek an escape outward).

I agree with capt_taco - if your case only supports a single fan, get a new case. Take a close look at the front of your case, behind the plastic bezel/front plate to see if there is already a fan "hidden" behind the front panel.

Mark
 
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aasimas

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I will look into that and see if there are any more vents the fans could be placed on. I installed the case fan I got as a exhaust fan and I see the temperature has dropped a few degrees. But I am still uonsure if this fan should be intake or exhaust.The problem is my pc gets hot after a few hours of gameplay. So in this case (no pun intended) what should I do with the case fan?
 
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markwp

markwp

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If in fact you only have that one fan, the best solution would be to have it in the front of the case, installed as an intake.

You can also try removing your side cover to promote circulation, although doing so can invite dust bunnies.

Bottom line - you need a case with at least two fans - one (larger of the two) as intake and one (smaller of the two) as exhaust. The intake is mounted at the front and the exhaust is mounted at the rear. Refer to Blackbird's diagram.

Mark
 
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