Really Hot GPU; Bad Airflow

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SgtStiffler

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Jul 5, 2013
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Hi,
I'm getting awful temperatures from my Asus GTX 670. I played Splinter Cell: Blacklist for about 20 minutes and the temperatures were 90 degrees celsius!!! I have added a fan to the back but it seems to be doing nothing. I am using a stock CPU cooler but I plan to upgrade; I guess that this won't affect the GPU's temperatures? I have a good PSU etc. I think the cable management is OK; however, my room is a hot room- the hottest in the house. I know this doesn't help but surely 90' is too hot in games. It isn't normal! It only does this in demanding games such as Crysis, Battlefield and Splinter Cell. How can I improve the airflow? I'm using this case: http://www.aone.co.uk/ProdInfo.ASP?ProductID=3020

It isn't the best case but it isn't bad??? Please can you help me, I'm not happy with these temperatures! Could I add water cooling to the graphics card? I don't know much about water cooling...
 
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Eximo

Eximo

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You might download and install MSI Afterburner. It will let you control the fan on the video card and has a brief chart that will let you see the temperatures you are reaching. Set it to maximum fan speed and see what the temperatures are like when you game.

That seems to be an older style ATX case with the power supply on top. The power supply should be pulling from inside and exhausting out the back. The rear fan should also be exhausting.

Stock fans are generally downdraft, which certainly doesn't help. A tower fan blowing front to back would be ideal. Fans in the front should be intake.

Is your GPU a centrifugal (blower) cooler, or just axial fans (case fans pointed at the GPU). The latter will exhaust out the rear of the system, the former will just re-circulate air in the case. Not much you can do to change that except a new graphics cooler.

There are cheap water cooling solutions out there for GPUs. Basically just straps a CPU closed loop onto the chip itself, and doesn't do anything for the onboard memory or VRMs. Arctic Accelero Hybrid cooler is a rather expensive cooler that is sold separately, but comes with a complete heatsink kit for the VRMs, RAM, and a shrouded fan cover to help cool them.
 
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SgtStiffler

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I think it's a centrifugal, it has 2 fans on the GPU. I don't think I have any case fans pointed directly at the GPU...
 
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Eximo

Eximo

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Two fans would say they are axial. Generally blower style cards only have the one fan.

Axial:
http://www.tomshardware.com/reviews/geforce-gtx-760-review-gk104,3542-3.html

Centrifugal: (third image)
http://www.tomshardware.com/reviews/geforce-gtx-760-review-gk104,3542.html

Give MSI Afterburner a try. It may just be trying to limit noise which is effecting the cooling.

It is usually quite hard for a case fan to get through to a an axial GPU, they are pulling air down onto the GPU and it goes in every direction from there, including back out. They work because of the amount of air they can move, it is not actually exhausting the heat, so your case exhaust fans would be the ones doing that.
 
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SgtStiffler

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If I turned around my case fan, wouldn't the hot air around the PC go onto the GPU making its cooling worse?

 
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SgtStiffler

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If I turned around my case fan, wouldn't the hot air around the PC go onto the GPU making its cooling worse?

 
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