A10-7860K Cooling Problem?

altazi

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Jan 23, 2007
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This is very confusing to me. I have been building computers for years, and set out to build a MicroATX system for my wife based on the ASRock A88M-G3.1 motherboard with the A10-7860K APU. This is a 65W TDP device, and my cooler, a Noctua NH-L9a 92mm SSO2 CPU Cooler should be able to handle things, based on feedback I have seen. However . . .

The BIOS hardware monitor shows a CPU temperature of 51 degrees C at IDLE. I used a Flir E40 thermal imager to measure the heatsink fin temperature and it is showing around 49 degrees C, which indicates to me that I have achieved a good thermal coupling between the APU heat spreader and the heatsink. I am using stock settings, 3.6GHz, Vcore 1.28V, not trying to push anything. I haven't seen anyone else get these high temperatures - I am thinking that an idling APU should be in the 30-40 C range.

I also measured the temperature of the VRM inductors near the APU socket, and they were riding around 61 degrees C.

Do these temperatures seem out of whack? Anyone have any 'cool' ideas?
 

altazi

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I'm curious - do any of you have a similar set-up, and if so, what kind of temperatures are you seeing?

A88M-G3.1 motherboard
A10-7860K APU w/ Noctua NH-L9a 92mm SSO2 CPU Cooler
G.Skill TridentX Series 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 2133 (PC3 17000) Desktop Memory Model F3-2133C9D-16GTX
InWin BL672 SFF mATX Slim case with IP-S300FF1-0 H Haswell Ready power supply (300W)

Also included but not yet connected are a Samsung EVO 2.5" 500GB SSD and an LG Blu-ray drive.
 

altazi

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Windows 10 Pro installed & running, using the ASRock A-Tuning utility to report the temps, and AMD system monitor to show core utilization. CPU cores idling - core temp is 32C.

Running Prime95 torture test (small footprint, maximum heat) - core temp is 54C.

I have never before seen a CPU hit peak temps while in the BIOS screen, but then again, I have never used an APU before. Maybe it is doing different things (?)

Now I have to figure out a way to exercise the GPU function and monitor the temperature . . . I welcome comments from anyone who has blazed this trail previously. Thanks!