Prime95 fatal error at 3.9 ghz

[PACMANx805]

A week ago I was playing bf4 at 4ghz and got clock_watchdog_timeout error(never had this in any game even arma 3), so I underclocked to 3.7 and all was good. But Im switching back to 4ghz because Its alot more playable. While running prime I got 1 error 0 warnings on worker 5. My temps are at 17c during prime. Im wondering why my 5th core is hopping between 5-10% cpu usage while all my other cores are 100%. Btw I havent updated my bios in a minute.
Amd phenom x6 1100t 4ghz
Crosshair v formula
8gb ram
Gtx 960
650 thermaltake psu

 

[cemerian]

what type of cooling you have , those temps seem impossibly low, so you are not stable in which case increase core voltage

 

[BSOD BSTD]

the clck speed of that CPU is 3.3Ghz, have you overclocked it? Try turning the voltage up by a tiny amount in BIOS and see if it helps.

Oh and 17c cant be right, your CPU will be hitting 30c minimum in prime, check your temps again.

 

[PACMANx805]

60c, please bare with me im new to PC. How much should i increase my voltage in bios. And I have a stock cooler.

 

[BSOD BSTD]

60c, please bare with me im new to PC. How much should i increase my voltage in bios. And I have a stock cooler.

just by 1 notch, its dangerous to overvolt components. and keep an eye on those temps.

 

[PACMANx805]

Im seeing NB voltage is that the one???

 

[BSOD BSTD]

Im seeing NB voltage is that the one???

no don't touch that one. it's Vcore, and only increase it by .025v and see if it helps. if your temps hit 70c during prime, turn the voltage back down.

 

[PACMANx805]

I can only see core offset voltage there is no vcore. BTW can I use amd overdrive, it's a lot more simple and I see Vcore as an option

 

[BSOD BSTD]

I can only see core offset voltage there is no vcore. BTW can I use amd overdrive, it's a lot more simple and I see Vcore as an option

yes try it in overdrive and see if it helps

 

[PACMANx805]

I have found cpu manual voltage but it's 1.476 v in bios. But in overdrive it states that the voltage is 1.425 per core??? Should I add the .025 increment in bios.

 

[PACMANx805]

Yea it reached 70

 

[PACMANx805]

I disabled a core then set my voltage to 1.475 @3.9ghz

 

[PACMANx805]

I'm hoping this will lower my temps and allow me to be a 3.9ghz, I'm doing this because arma 3 runs better with a 4 core cpu especially if there's more power to them. And bf4 will run a lot more efficiently. I'll keep you posted to see how it goes

 

[PACMANx805]

Only problem is my voltages are at 1.500v but temps are perfect

 

[PACMANx805]

Nice it doesn't go more that 66c, do you guys think it would be best to just make it 4 cores instead of 5 which is what I have it set to now??

 

[BSOD BSTD]

Nice it doesn't go more that 66c, do you guys think it would be best to just make it 4 cores instead of 5 which is what I have it set to now??

if it works at present then you can, you'll lose CPU power doing that though. 1.5v is a bit high but should be ok, dont take it any higher. I recommend that you get a water cooler for the CPU, its going to help a lot, seidon v2 or another small one like that will do.