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[Solved]New to overclocking - 4770K@4.6Ghz on H110 cooling 1.37 vcore, max 87C under stress testing. Temp seems way too low for voltage. Advice?

post #1 of 24
Thread Starter 
Alright, so this is my first serious overclock and I'm a bit confused.

I've been slowly stepping up the clock multiplier, stress testing with 10x Intel Burn Test at Very High stress level and gradually stepping up v-core voltage when I encounter instability. At the moment I'm sitting on 46x multiplier with a v-core of 1.37V and as far as I can tell it's pretty stable - Intel burn test x20 at Very high, System Stability test AIDA64 for 20 minutes, a few hours of gaming (I haven't done a full 24hr burn test yet so I'm not 100% sure it's stable, but I want to be sure I have a safe voltage before I do that). Temperatures sit at around 30C@idle and 80-85C@100% with occasional spikes to 87C.
Idle:

Loaded:

Temperatures:



Anyway, after some research, people seem to be saying that 1.3V is nigh impossible with closed loop cooling solutions, but I'm doing 1.37 without any problems. 1.37 also seems to be quite a high voltage for the core speed I'm getting, but any lower and I run into instability... My confusion is compounded by the fact that AIDA64 is reading the voltage as 1.016V which is far too low for the temps I'm getting.


Can someone shed some light on this for me?
post #2 of 24
I've never used AIDA but seeing HWMonitor and CPU-Z it looks like your voltage is at 1.372 just as it says. Also if you're using IBT then expect your temps to be WAY WAY higher than they would be during everyday use meaning you still have quite a bit of headroom temperature wise unless you're weary of increasing your voltage any higher. I used PRIME95 to check OC stability but really the best way is to check for WHEA warnings in your event viewer and playing games to make sure your CPU doesn't crash. Also keep in mind that there are other voltages you can tweak to help stability without increasing CPU voltage, mainly decreasing PLL. At least it helped with me, granted I'm using a different chip all together.

Hope this helps. Cheers.
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post #3 of 24
Thread Starter 
Quote:
Originally Posted by BeastRider View Post

I've never used AIDA but seeing HWMonitor and CPU-Z it looks like your voltage is at 1.372 just as it says. Also if you're using IBT then expect your temps to be WAY WAY higher than they would be during everyday use meaning you still have quite a bit of headroom temperature wise unless you're weary of increasing your voltage any higher. I used PRIME95 to check OC stability but really the best way is to check for WHEA warnings in your event viewer and playing games to make sure your CPU doesn't crash. Also keep in mind that there are other voltages you can tweak to help stability without increasing CPU voltage, mainly decreasing PLL. At least it helped with me, granted I'm using a different chip all together.

Hope this helps. Cheers.

Thanks for the swift reply. What specifically should I be looking for in the event viewer? Also, my question was more specific to this chip, most guides seem to suggest 1.25V as the thermally limited max voltage without de-lidding the processor. Either my chip is performing thermally way above it's bin or something fishy is going on...

Also what's the difference between v-core and VID? I set v-core to 1.372 but vcore is at 1.018V and VID is at 1.372.
Edited by Anon3mous1 - 8/4/13 at 6:43pm
post #4 of 24
Quote:
Originally Posted by Anon3mous1 View Post

Thanks for the swift reply. What specifically should I be looking for in the event viewer? Also, my question was more specific to this chip, most guides seem to suggest 1.25V as the thermally limited max voltage without de-lidding the processor. Either my chip is performing thermally way above it's bin or something fishy is going on...

Also what's the difference between v-core and VID? I set v-core to 1.372 but vcore is at 1.018V and VID is at 1.372.

You should check under the System tab for any WHEA log warnings. They should say something like "Windows detected an error with a core and fixed it" or something like that. When this happens that means you need to add more voltage to the CPU. There are times when stress testing is successful but you'll get a ton of WHEA warning which will lead to games crashing and things like that. Each processor is different so there is really no way to give a certain "max voltage" aside from what is indicated by Intel which is usually 1.5v and you will never really reach that since your temps will be too high before getting anywhere near 1.5v. You're max voltage will be the most voltage you can use within acceptable temperatures. 1.37v @ mid 80 degrees like you have now sounds like your max voltage/temperature limit since going any higher would overheat your processor.

1.372v is your real voltage as indicated in CPU-Z and HWMonitor. Try this thread to help answer your question regarding VID vs vcore. http://www.overclock.net/t/1152902/vid-vs-vcore
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post #5 of 24
AVX instructions enabled? Your GFLOPS should be way higher than that..
Edited by ep45-ds3l - 8/4/13 at 7:42pm
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post #6 of 24
Thread Starter 
Quote:
Originally Posted by BeastRider View Post

You should check under the System tab for any WHEA log warnings. They should say something like "Windows detected an error with a core and fixed it" or something like that. When this happens that means you need to add more voltage to the CPU. There are times when stress testing is successful but you'll get a ton of WHEA warning which will lead to games crashing and things like that. Each processor is different so there is really no way to give a certain "max voltage" aside from what is indicated by Intel which is usually 1.5v and you will never really reach that since your temps will be too high before getting anywhere near 1.5v. You're max voltage will be the most voltage you can use within acceptable temperatures. 1.37v @ mid 80 degrees like you have now sounds like your max voltage/temperature limit since going any higher would overheat your processor.

1.372v is your real voltage as indicated in CPU-Z and HWMonitor. Try this thread to help answer your question regarding VID vs vcore. http://www.overclock.net/t/1152902/vid-vs-vcore
Thanks, I'll work on the fine tuning now smile.gif Any tips on where to start with the fine tuning?
Quote:
Originally Posted by ep45-ds3l View Post

AVX instructions enabled? Your GFLOPS should be way higher than that..
How do I check? I got 58GFLOPS@4.4 GHz and not 62GFLOPS@4.6GHz so it seems to be scaling properly...
post #7 of 24
Are you running SP1 on your win 7 install? Also when stress testing please use manual vcore until you have reached stability at the speed you are trying to obtain.
Edited by ep45-ds3l - 8/4/13 at 8:04pm
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post #8 of 24
Quote:
Originally Posted by ep45-ds3l View Post

AVX instructions enabled? Your GFLOPS should be way higher than that..

the only way to get those high Gflops if he disable HT smile.gif with HT on you only get 50% on that because HT is 8 threads so you know what i mean now smile.gif
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post #9 of 24
Thread Starter 
Quote:
Originally Posted by skyn3t View Post

the only way to get those high Gflops if he disable HT smile.gif with HT on you only get 50% on that because HT is 8 threads so you know what i mean now smile.gif

So if I disable HT my total GFLOPS will increase and video rendering performance?
Edited by Anon3mous1 - 8/4/13 at 8:15pm
post #10 of 24
Okay.. but umm that seems really low to me?? My 3770k @4.8ghz/HT on

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  • [Solved]New to overclocking - 4770K@4.6Ghz on H110 cooling 1.37 vcore, max 87C under stress testing. Temp seems way too low for voltage. Advice?
Overclock.net › Forums › Intel › Intel CPUs › [Solved]New to overclocking - 4770K@4.6Ghz on H110 cooling 1.37 vcore, max 87C under stress testing. Temp seems way too low for voltage. Advice?