CPU will sometimes underclock and undervolt itself, even in HPC mode

[Alcon]

So.. for some reason, even with HPC mode enabled and all of the power saving/auto underclock options disabled, my fx 8320 will occasionally underclock itself to 1MHz and lower its voltage, even when its below the maximum operating temperature of 62 degrees.

I noticed it at first while I was playing dragon age inquisition, and proved what it's doing after monitoring my cpu with core temp while running small blend fft tests via prime 95.

Is there anyway I can prevent this from happening? It started happening recently and i'm not sure how to stop it.

P.S.: I'm overclocked at a constant 4.0MHz @ 1.3125V if that matters

Thanks in advance guys.

 

[cemerian]

sound like throttling because of vrm overheating, what is your mobo?

 

[Alcon]

M5A97 LE R2.0

 

[cemerian]

then im pretty sure its your vrms the board only has 4+2 vrm design with absolutely no heatsinks on them, for a 8 core fx chip a board with 8+2 phase vrm design is a must, eve though 6+2 design isn't bad for mild overclocks 8+2 will always work better(had asrock board with 4+1 vrms with heatsinks i put on them myself and a fan blowing directly on them, allowed me to go to 5,7ghz without, upgraded to 6+2 design later only to kill the board at higher overclocks, when i finally upgraded to 8+2 pahse design i was able to reach 5,2ghz without any issues whatsoever) throttling, you can try and put a fan in your case to blow air directly on the vrms should help, but again that board cant really handle the 8 core chips on full load, also putting on some heatsinks on the vrms would help

 

[Alcon]

then im pretty sure its your vrms the board only has 4+2 vrm design with absolutely no heatsinks on them, for a 8 core fx chip a board with 8+2 phase vrm design is a must, eve though 6+2 design isn't bad for mild overclocks 8+2 will always work better(had asrock board with 4+1 vrms with heatsinks i put on them myself and a fan blowing directly on them, allowed me to go to 5,7ghz without, upgraded to 6+2 design later only to kill the board at higher overclocks, when i finally upgraded to 8+2 pahse design i was able to reach 5,2ghz without any issues whatsoever) throttling, you can try and put a fan in your case to blow air directly on the vrms should help, but again that board cant really handle the 8 core chips on full load, also putting on some heatsinks on the vrms would help

Thanks amigo, I applied heatsinks to the vrms and it solved the problem. I also noticed that I'm running 8 degrees celcius cooler.. which is remarkable!

 

[cemerian]

glad to help