Does it help reduce the temp in an amd gpu card by turning down the memory clock? If so, how far can you take it down?

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merle - vote yes for freedom of speech

Mearle under or over clocking GPU's can be a bit tricky. Unless the card is in the 70's c , i would not worry to much , turn the fans up so more air will cool it .
Unless you fan is 100% your asking for a headace doing that

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How hot is the GPU running?
Does it have an adequate cool air supply?
Are its internal heat sinks clogged with dust/fur?
Simple solutions like improving the case ventilation can lead to big reductions in component temperatures.

Is the GPU in question running at the chip set designer's specified speeds (in other words has it a factory over clock? If so, roll it back to the design specification before considering anything else.
If AMD GPUs are anything like Nvidia GPUs then just changing one of the clocks can lead to big problems, so consider scaling all the clocks, and possibly having to fiddle with the voltages, and then keep a very careful eye on both your results, and the overall performance of the GPU.

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Bob Smith
Member of Seti PIPPS (Pluto is a Planet Protest Society)
Somewhere in the (un)known Universe?

Thanks guys for your input. My one gpu usually runs about 70-72C but it has reached 74C but for a very short period. I'll keep an eye on it and blow out any dust and increase the fan speed which now is set for auto. Thanks again.

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merle - vote yes for freedom of speech

in my experience undervolting amd gpus reduces power consumption which in turn reduces temperature

you can do this with msi aftburner

on my amd 280x cards the undervolt setting in afterburner is -80

your experience may vary

my setup is headless and involves 4 x 280x

I changed my fan setting from auto to 50% and got an immediate improvement. It's running in the low 60's. I'll have to make sure I monitor it though. Things could change I suppose. If that won't cure it I'll go for undervoltage but I imagine that would slow down processing on that card.
Thanks guys for your input.

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merle - vote yes for freedom of speech

Glenn,
Thanks for that advice, that's exactly what I did and it works perfect.

Mearle under or over clocking GPU's can be a bit tricky. Unless the card is in the 70's c , i would not worry to much , turn the fans up so more air will cool it .
Unless you fan is 100% your asking for a headace doing that

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merle - vote yes for freedom of speech

I not only want to decrease temperature but also like to keep the CPU frequency down. I'm running BOINC on linux here on an AMD APU (7850K). If I let run BOINC 100% the computer get's very hot and the CPU is always 100% usage at full frequency.

When I set 5% CPU usage in BOINC client, it doesn't really use permantly 5%. Instead it uses 100% CPU at 5% of the time. This leads to 100% CPU usage in full frequency (3.7 GHz) every 20 seconds. That's not what I want. I would like BOINC to always run but keep my AMD CPU in the lowest Cool&Quiet frequency. Running Ubuntu, I can see with the frequency indicator that Cool&Quiet is running very well ... until BOINC kicks in and pushes it to the maximum.

How can I run BOINC without letting it increase the CPU frequency?

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Join team KRAFTWERK - all BOINCers welcome! :-)

Dentaku - In BOINC computing preferences, leave the CPU TIME at 100%, and where it says 'On multiprocessor systems use at most' try 25%, 50%, or 75%. That will leave some cores free to do other things.

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