4770K Overclocking questions

[CowsGoRoar]

During the benchmark, I got a max temp of 94C with all cores at 39x multiplier (3.9 GHz.) It's one of those large spikes, but other than that, it's around 70C. I should buy some better thermal paste, yes?

 

Also, will my PC crash if it's unstable during the testing?

[sandals100]

What is the voltage

[CowsGoRoar]

What is the voltage

OC'ed to 4.0 GHz (40x on all cores) at 1.202V, CPU-Z showed when it said 3999.7 MHz for all cores during a quick GeekBench 3 32-bit for 5 seconds to stress them out to see the info on CPU-Z. Offsetted to -15.625 mV.

 

Stressed tested for 1 min stable, it was -10 mV for 5 min. on 4.0 GHz stable.

[sandals100]

OC'ed to 4.0 GHz (40x on all cores) at 1.202V, CPU-Z showed when it said 3999.7 MHz for all cores during a quick GeekBench 3 32-bit for 5 seconds to stress them out to see the info on CPU-Z. Offsetted to -15.625 mV.

 

Stressed tested for 1 min stable, it was -10 mV for 5 min. on 4.0 GHz stable.

Your voltage isn't very high at all so I think you might have to turn to your cooler. First thing you can try is making sure that your cooler is actually installed properly. If that doesn't work then you should try :

- Making sure that the unit is functioning properly (not sure how you can do this). 

 

Changing your thermal paste won't drop your temp's a whole lot, however you need to make sure that the thermal paste that is already on the cooler is not dry or not applied properly. If either of the two are off you should buy a new TIM

[LogicalDrm]

It may also be that benchmark. Have you tried with other ones like XTU, Aida or OCCT?

[CowsGoRoar]

Your voltage isn't very high at all so I think you might have to turn to your cooler. First thing you can try is making sure that your cooler is actually installed properly. If that doesn't work then you should try :

- Making sure that the unit is functioning properly (not sure how you can do this). 

 

Changing your thermal paste won't drop your temp's a whole lot, however you need to make sure that the thermal paste that is already on the cooler is not dry or not applied properly. If either of the two are off you should buy a new TIM

I lowered my voltage to 1.168V and at 4.1 GHz, the max temp is 81.

[CowsGoRoar]

It may also be that benchmark. Have you tried with other ones like XTU, Aida or OCCT?

I was using XTU.

[NIGHTSHADE0]

81 is a reasonable temp for this chip, they run hot. I assume you have read through the overclocking guide on this forum?

 

I would stress for a lot longer than a few minutes to get a baseline ( the cores tend to jump around a lot) it could be stable for hours and then suddenly crash.

 

Consider going for a larger cpu cooler if you're concerned about the heat.

My temps sat at 70+- a few degrees when stressing with aida 64 and xtu etc.

 

edit: If you want to test if the cpu cooler is functioning properly as suggested earlier you can run a stress test , one way is to put some pressure on the cpu mount, if its loose or over tight it can effect temps so I have read

[LogicalDrm]

I was using XTU.

 

Ok, you actually have pretty high voltage for such low OC. I'm running this chip with 4.0GHz at 1.15V which in my own option is still high for clocks. But on temps side I don't think this is thermal paste issue. You would notice it when running stock and getting 80C+ temps.