Am i going to fry my CPU with these settings?

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Salkio

Commendable
Oct 22, 2016
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Hey there!

I just got my self the I7 7700k and decided to OC to 5GHz, i have the Corsair H110i v2 liquid cooler.

Right now my cores are synced to 50 and i changed the core voltage to 1.260 (this is legit all i did)

Im running windows and it seems to be smooth (first time my PC restarted for what ever reason. But after the restart its seems stable.)

My temperatures idle are are around 30 to 40 C. Now am i going to break anything with these settings? I got this CPU 2 days ago and i dont want to return it broken... Is my voltage fine? too low? too high? 5Ghz i believe is golden, some people went 5.1 or higher...
 
Solution
M
some chips are better than others and will reach higher speed at less volts.

anyway 5ghz at 1.26v is excellent. but it doesnt sound liek you were stable. what you should do is start around stock volts(usually 1.25 for a 7700k) and up the multiplier 100mhz at a time. so start with 4.6 at 1.25v. if you boot(which you should) then run a stress test for a least fifteen minutes. if it fails, bump the voltage a little and try again. whenever you pass at a certain clock/voltage bump the clock by another 100mhz. when it fails, bumb the voltage a little. keep doing this, adjusting the clock and voltage until either voltage is getting too high or temps get too high.

once you settle on an overclock then run the test longer(at least an hour)...
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Salkio

Commendable
Oct 22, 2016
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Ok but i dont know if safer is lower or higher. Like i dont want to keep crashing the system its bad?
 
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Salkio

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Oct 22, 2016
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Does this make sense.
So this CPU's boost clock is 4.5 GHz and i read online that a 0.5 GHz different is not really noticeable. So what is the point to OC?
 
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ahnilated

ahnilated

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Nov 9, 2006
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Most people overclock upwards of 50% over stock speeds. There are some chips that just are not good for overclocking. Going to 5GHz from 4.4 or 4.5 G is a 500MHz overclock and you might get a few more FPS if you are limited by your CPU. People that overclock do it because they love to tinker in their systems, like me. You don't get the massive overclocks like you used to in the past. Where you take a 3.4G chip and take it to 4.7G. There just doesn't seem to be that kind of head room in CPU's anymore unless you go to exotic cooling. No average person can afford that much less wants to deal with the hassle of liquid nitrogen 24/7.
 
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mrobscura

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Mar 9, 2017
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some chips are better than others and will reach higher speed at less volts.

anyway 5ghz at 1.26v is excellent. but it doesnt sound liek you were stable. what you should do is start around stock volts(usually 1.25 for a 7700k) and up the multiplier 100mhz at a time. so start with 4.6 at 1.25v. if you boot(which you should) then run a stress test for a least fifteen minutes. if it fails, bump the voltage a little and try again. whenever you pass at a certain clock/voltage bump the clock by another 100mhz. when it fails, bumb the voltage a little. keep doing this, adjusting the clock and voltage until either voltage is getting too high or temps get too high.

once you settle on an overclock then run the test longer(at least an hour) making whatever adjustments necessary(lowering the clock most likely) to make it stable.

keep in mind some 7700ks have poor quality control and cant transfer heat well resulting in terrible temps and poor OCing ability. but generally most people are saying anything below 1.4v(though personally id stick to between 1.3-1.35 for 24/7 use) is fine. and as for temps, under a heavy load while stress testing keep max temps below 90 and below 80-85 the majority of the time. and thats worse case scenario.
 
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Salkio

Commendable
Oct 22, 2016
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Im trying this again. What i did now i set it to sync at 50 and left the voltage on auto and the system seems to be stable. I ran cinabench and got 1038 instead of 904 (stock 4.2/4.5). Should i tweak the voltage? I see that on CPU the voltage when 100% stressed from the bench it got to v1.34. Should i change the voltage in bios to 1.3 maybe 1.35?

 
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Salkio

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Oct 22, 2016
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Ok this is what i have done after tweaking.

I found that anything higher than 1.285/1.295v will cause CPU throttle when stressed with AIDA64 CPU/FPU checked.

I found that 1.275v is good. with AIDA64 max temperature was on core 1 at 96C (still no throttle) at 1min of stressing.
with cinabench i got 1003/1023 and also no throttle highest temp was 87C in core 1.

After stressing for 2min with 1.275 the CPU started to throttle. So back to tweaking.
 
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