AMD A10-7870k CPU throttling due to igpu

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Pman96

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May 6, 2016
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I'm currently running the A10-7870k (OC'd to 4.3GHz, igpu on stock) cooled by the 212 Evo.

I find myself unable to further increase my OC due to the igpu overheating and causing the cpu to throttle down to 1.7GHz (confirmed on AMD Overdrive running prime95).
AMD Overdrive says my CPU Thermal margin is at 35-40C from limit so it cannot be the cpu.

I have changed the thermal paste twice and had no change.

My question is, seeing as I'm goindg to buy a 960 soon, will the fact that I'm not using the igpu lower my cpu temps, or is it a defect on the cpu?
 
Solution
photonboy
GTX960?

I suggest waiting a bit longer and see what pans out with the new AMD Polaris, NVidia Pascal cards.

For your budget, the Polaris 11 is probably going to be the only one though I suggest holding off for benchmarks, pricing etc.

APU now:
a) run a game benchmark (Fire Strike or similar) and write down the CPU, GPU, and totals score
b) put APU to default settings (then retest EXACT same benchmark settings)
c) now raise the GPU portion only and retest.

You can also try more than one benchmark. I would probably NOT use something like Unigine Valley as it's not too taxing on the CPU. Preferably you want a mixed CPU/GPU load representative of most games. One of the METRO benchmarks for example (doesn't represent actual game...
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xXCrossfireXx

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Jan 16, 2016
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http://www.bleepingcomputer.com/forums/t/333409/can-integrated-graphics-cards-overheat/
http://www.overclockers.com/forums/showthread.php/716605-How-to-stop-overheating-integrated-GPU

These threads either explain how the iGPU can overheat (first one), or a similar issue to what you're having (second one). So the answer is yes, it is most likely overheating, but you should try to find a way to make sure it is in fact overheating.
 
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photonboy

photonboy

Titan
Jun 20, 2006
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GTX960?

I suggest waiting a bit longer and see what pans out with the new AMD Polaris, NVidia Pascal cards.

For your budget, the Polaris 11 is probably going to be the only one though I suggest holding off for benchmarks, pricing etc.

APU now:
a) run a game benchmark (Fire Strike or similar) and write down the CPU, GPU, and totals score
b) put APU to default settings (then retest EXACT same benchmark settings)
c) now raise the GPU portion only and retest.

You can also try more than one benchmark. I would probably NOT use something like Unigine Valley as it's not too taxing on the CPU. Preferably you want a mixed CPU/GPU load representative of most games. One of the METRO benchmarks for example (doesn't represent actual game performance but is useful for the purpose here).

*the APU probably has more than one metric to manage the iGPU frequency. CPU temperature is one, but power draw may be another because the socket has a specific TDP.

You can for example, show 40degC with a good cooler and have a draw of say 80W (I made up that number). If you had a crappy, stock cooler and show 40degC the power draw could be only 60W (lower frequency/performance but my point is power and temp aren't the same thing).
 
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