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GPU, CPU, PCI temp / fan speed control

post #1 of 4
Thread Starter 
I just got a new Alienware Aurora-R3 with the 3.4ghz i7 processor and nvidia gtx 460. I seemed to be having issues with the graphics card overheating when I was playing a game.

So I used MSI Afterburner to monitor the GPU temp and fan speed. As I played the game, the GPU temp got hotter but the fan never went above 25%.

So I now have MSI Afterburner setup to increase the GPU fan speed as the card gets hotter and am using Alienware's Thermal Controller to adjust the PCI fan speed and HD fan speed.

I have a few questions and please excuse my noobness about these issues but this is my first serious gaming computer.

1. shouldn't the graphics card increase its own fan speed by default without using other software? or does everyone use something like MSI Afterburner, EVGA Precision, etc?
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2. it turns out that the "PCI fan" in AW's Thermal controller is not the GPU fan, so what exactly is it?

3. I currently have the GPU, CPU and PCI fans setup along a curve, so that they increase in speed as the component gets hotter, with the fan speed a little faster than the temp. So that at 40c, the fan speed is like 50% and at 80c the fan speed is 100%. What are some good guidelines for how fast to set the fan speed in relation to the temp for each of these (CPU, GPU, PCI)?

thank you for any help!
post #2 of 4
The GTX 4XX cards all run very hot its a known issue with them,

to answer your questions in order, Yes the gpu should automatically adjust the fan speed however they tend to have very non aggressive fan profiles and they let the card get very hot, I think most people use custom fan profiles if only to keep the sound in check running constantly at 50% is allot quiter than running at 100% for 30 seconds every 5 mins tongue.gif

The exact curve you should follow is more personal preference but I personally run mine on an exponential curve so each increase in temp gives a more aggressive response in terms of fan maxing out at 100% around 70c.

Edit: above I'm only really talking about gpu, just run your cpu fans at 100% all the time unless the noise bothers you I doubt they are that noisy but I honestly have no idea what kind of coolers alienware use.
Edited by Dr216 - 3/31/11 at 5:29am
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post #3 of 4
Thread Starter 
Thanks alot for the response Dr216! I was afraid I would get flamed for being such a noob smile.gif
What app would you recommend using to control the CPU fan as the Alienware Thermal Controller doesn't let you control that?
Is it common for people to use multiple apps for controlling the GPU and CPU or is there 1 that will cover both?

also what temp/fan % would you recommend for the PCI and HD fans?
Edited by vapor72 - 3/31/11 at 3:08pm
post #4 of 4
Quote:
Originally Posted by vapor72;12950121 
Thanks alot for the response Dr216! I was afraid I would get flamed for being such a noob smile.gif

Every one starts somewhere we were all noobs once smile.gif

Erm I use Rivatuner . That will let you change most things in one program others prefer to use a mix.

Leave the hard-drive fans as they are most people don't even bother to cool the hard drives beyond the general airflow through their case smile.gif

I would guess the PCI fan is there to help exhaust more of the heat your 460 pumps out? If so play with it a little and see how much it shaves off the temps and just use your best judgement.

It is very unlikely that any of your hardware will reach dangerous temperatures anyway as long as you don't do anything too daft so just play and see where you feel comfortable with the noise level vs the temp. Personally I like to make sure my case temp is within 2c of the temp outside my case and that my cpu/gpu under load are no more than 25c over my case temperature. But its quite safe for your components/case to get far hotter than that.
Edited by Dr216 - 4/1/11 at 1:33am
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