Thermal throttle caused by motherboard or cpu?

Diogo13350

Junior Member
Dec 9, 2018
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0
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Hello guys, i have this probleme for years but just now that i start understanding how a PC works i reliesed that my pc is thermal throttling and getting massive FPS drops in all games!Any advice about this temperature readings ??Capturar.PNG
 

VirtualLarry

No Lifer
Aug 25, 2001
56,327
10,035
126
Get a better board, preferably one designed for 8-core FX CPUs. It appears that your VRMs are overheating, and the chipset is sending a signal to the platform/environment-control logic, to trigger CPU throttling. (Normally, your CPU would not hit 209C. At least, I hope not.)
 
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VirtualLarry

No Lifer
Aug 25, 2001
56,327
10,035
126
That should work. That being said, I would like to hear from someone else to weigh in on this problem, maybe there's something I'm missing.

My logic goes like this: It's unlikely that your CPU is hitting 209C, without consequences, so that has to be a false reading... created by the PECI (well, that's what it's called in Intel land) logic, whereas there's a bi-dir overheat signal, that can be triggered by the CPU, if overheating, or the chipset, to throttle the CPU. My understanding is that when the VRMs overheat, on most AM3+ boards, they signal the CPU to throttle, by programming the temp sensor or whatnot signal, to show 200C+ temps. Which would not ordinarily be reachable by CPU overheating alone.

Plus, your HWMonitor shows one of the temps near 90C+, that's probably the mobo temps (VRMs).

Does anyone concur with my logic?

If that board has VRM heatsinks (which I doubt, given the temps), but if it did, you could zip-tie a 120mm case fan in the region, and maybe cool them down that way.
 

Diogo13350

Junior Member
Dec 9, 2018
3
0
6
I can confirm it's not reaching 209 °C, the computer never shuts it self down and there is no damaged components. I have a heatsink with new thermal paste and 4 fans in the case so colling is not the probleme, I am 100% it's just a bad reading that's causing this thermal throttle! I am pretty sure it's the motherboard not being made for 8 core cpu.