Safe Overclocking- CPU stability and health question

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amwarrior93

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Apr 27, 2015
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Hi. I am new to overclocking and I just have a quick question in regards to safe overclocking. I understand that what kills CPUs is heat. I have currently overclocked my i7 4790k to 4.8Ghz and after stress testing it for an hour using intel's extreme tuning utility, my CPU temps were constantly in the mid to high 60s and peaking at 71C. I am just wondering if it will be safe to overclock some more. I am currently using a corsair h100i to cool the CPU.

Also, just another side note question in regards to safe overclocking. Is temperature the only thing I should be concerned about when deciding whether my overclock settings are safe? E.g. Say hypothetically you manage to overclock your CPU to 6Ghz and it averages in the 60s, is that safe? (I know that is pretty much impossible but just for clarification). Or does the CPU become unstable regardless of the temperature after a certain amount of overclocking?

Thanks in advance for the help
 
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The temperature isnt really what kills a CPU, You need to watch your core voltage, your temps can be fine but if you are pushing more than 1.4v then you have entered what intel classified as, " beyond 1.4volts, there is every chance your CPU might just die randomly".

Obviously extreme clockers break this point frequently but most people even if they can afford monster pc's can't necessarily afford to dump change on a whole new cpu for such a silly reason. My personal max is 1.35, as I use power saving adaptive voltage. But this allows some programs to overdraw so I left a safety net to allow that.

Also, I recently found that clocking the uncore or cache ratio, and the voltage for them too, allowed my clock to run at a lower voltage...
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drtoast

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May 10, 2013
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The temperature isnt really what kills a CPU, You need to watch your core voltage, your temps can be fine but if you are pushing more than 1.4v then you have entered what intel classified as, " beyond 1.4volts, there is every chance your CPU might just die randomly".

Obviously extreme clockers break this point frequently but most people even if they can afford monster pc's can't necessarily afford to dump change on a whole new cpu for such a silly reason. My personal max is 1.35, as I use power saving adaptive voltage. But this allows some programs to overdraw so I left a safety net to allow that.

Also, I recently found that clocking the uncore or cache ratio, and the voltage for them too, allowed my clock to run at a lower voltage and temp. So if you haven't already, give that a whirl. But dont exceed 1:1 on the core to cache ratio, mines currently 4.6 core to 4.0 cache for example.
 
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