FX6300 overclocking issue

Jun 19, 2018
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Hi
I am trying to get the most out of my FX6300. I have installed a Hyper EVO 212 cooler and two case fans so I can overclock it. I have a MSI 970a G43 plus motherboard. I have pushed the clock speed to 4100Mhz and have upped the core voltage to around 1.43 to 1.45V to keep it stable. I use Speed fan to measure temps and P95 for stress testing. Speedfan and the MSI utility Command Centre align with the same CPU temp which is around 38C with little load and gets up to 55C with P95 running at max load (Temp 1 on Speed fan).

During stress testing the PC at 100% load appears stable ie no Windows errors or reboots but after around 7 mins or so the PC just suddenly turns off completely. The CPU temp seems fine at around 55C or so when this happens, but I have noticed that Temp 2 on speed fan creeps up and gets to around 124C when the PC cuts out - this appears to be repeatable at the same level ! It looks as if Temp 2 reaching this temp appears to trigger a hard PC shut down. My problem is I do not know what Temp 2 is and why this appears to get so high.

Can anyone shed any light on this issue please ? - its a shame I appear to be well within the CPU temp limits and I can't proceed to overclock a little further because of this.
Thanks for any help.....
 
Jun 19, 2018
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Thanks for your response Robert. The PC shut down appears to occur after around 7 or 8 mins of P95 testing. About when Temp 2 on Speedfan crosses 124C. The processor temp appears reasonably stable at 55C. If temp 2 is to be believed it appears to indicate a component that is fairly temp stressed !The differential between temp 2 and the CPU is around 15 to 20C normally but increases quite a bit during the P95 test.
 
Jun 19, 2018
4
0
10
Hi
I eventually managed to play around with my CPU and system fan control so the CPU Fan ran faster at a lower temperature and the case fans also ran faster. All the fans were on temp control. This did the trick, Temp 2 was contained to max of 110C but modulated between 100 to 110C during the prime test so the PC kept running. it makes sens that this temp related to the VRM's as I have seen other material which suggests a max temp of around 120+C. I guess my motherboard was just protecting itself by switching the power off which is a good thing ! It seems that the critical thing during the P95 test was the control of the VRM temp and not the CPU itself. The fact that the CPU was running at a reasonable temp ie 55C meant the CPU fan speed was low and this was insufficient for the VRM cooling which improved when I lowered the temp at which the CPU fan achieved 100% speed thereby increasing the speed and lowering Temp 2.
Thanks again Robert for pointing me in the right direction !
I now have achieved 4200MHz on the FX6300 but feel it is going to get even more difficult from here on in but I guess thats the fun of it !