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Safe temps for i7 4770K OC to 4.2 GHz with CM EVO 212?

Hi everyone. As the title says, I´d like to know if my temps are OK for my proccesor OCed to 4.2 GHz with this particular heatskin.




Intel Core i7 4770K (Cooled by a Cooler Master Hyper 212 EVO)
Gigabyte Z97X-Gaming 7 MoBo
EVGA GeForce GTX 780 3GB SC with ACX
Corsair Vengeance Pro series 2133MHZ - 2X8 GB
WD Blue 1TB 7.200 rpm 64M (later I´ll get a SSD for OS)
EVGA Supernova NEX750B PS
OS Windows 7 or 8 (not decided yet)
13 answers Last reply Best Answer
More about safe temps 4770k ghz evo 212
  1. wow lower the volts temps are a little high
  2. What value is the lowest that I can use? At first, I tried with 1.1 volts, but just got the MoBo screen and nothing else. The system didn´t start.

    Updated:
    I reduced the voltage to 1.2v and these are my temps now.



    Can I go lower (volts) with my rig, for example, 1.15v? Thanks.
  3. Those temps are fine but try 1.15v or try 4.4@ 1.2
  4. I tried with 1.15 and after 5 or more minutes, I got a blue screen. At this moment I´m with 1.18v @ 4.2GHz and it´s stable.
    What would be my temps if I raise to 1.2v and set to 4.4@?
  5. Jaime Delgado said:
    I tried with 1.15 and after 5 or more minutes, I got a blue screen. At this moment I´m with 1.18v @ 4.2GHz and it´s stable.
    What would be my temps if I raise to 1.2v and set to 4.4@?


    First clean your fans and have proper ventilation in the cabinet..
    Though I guess 212 evo should saturate that high temp.. And 70-75'c is average for a i7 4770K ..
  6. You may need a better cooler for your requierements, 75°C is the highest peak of temperatures you want to have in a system, 60°C is the acceptable ceiling for everyday use.
  7. 6R1M01R3 said:
    You may need a better cooler for your requierements, 75°C is the highest peak of temperatures you want to have in a system, 60°C is the acceptable ceiling for everyday use.


    The highest resistable peak is 100'c.
    Yesterday I was working at 98'c and nothing happened !!
  8. harry_r_s said:
    6R1M01R3 said:
    You may need a better cooler for your requierements, 75°C is the highest peak of temperatures you want to have in a system, 60°C is the acceptable ceiling for everyday use.


    The highest resistable peak is 100'c.
    Yesterday I was working at 98'c and nothing happened !!


    -shakes head- absolutely not, even if it can withstand that much heat, you DON'T WANT to make it work under those temps. Get a better cooler like a Noctua ND-14H or a water cooler like the Corsair H100i if you want to keep it overclocked and not burn the chip within a month or less.
  9. 6R1M01R3 said:
    harry_r_s said:
    6R1M01R3 said:
    You may need a better cooler for your requierements, 75°C is the highest peak of temperatures you want to have in a system, 60°C is the acceptable ceiling for everyday use.


    The highest resistable peak is 100'c.
    Yesterday I was working at 98'c and nothing happened !!


    -shakes head- absolutely not, even if it can withstand that much heat, you DON'T WANT to make it work under those temps. Get a better cooler like a Noctua ND-14H or a water cooler like the Corsair H100i if you want to keep it overclocked and not burn the chip within a month or less.


    I know that temperature is too much (and Yes I buyed 212 evo only !! to keep it down) but I am just telling you that 70 is not too much for a i7 ..
    My friend has i7 HP laptop, he has his temp always around 65-70'c .. Now he has not OCd and his laptop is fine. I have seen the situation for 1 year still its running !
  10. harry_r_s said:
    6R1M01R3 said:
    harry_r_s said:
    6R1M01R3 said:
    You may need a better cooler for your requierements, 75°C is the highest peak of temperatures you want to have in a system, 60°C is the acceptable ceiling for everyday use.


    The highest resistable peak is 100'c.
    Yesterday I was working at 98'c and nothing happened !!


    -shakes head- absolutely not, even if it can withstand that much heat, you DON'T WANT to make it work under those temps. Get a better cooler like a Noctua ND-14H or a water cooler like the Corsair H100i if you want to keep it overclocked and not burn the chip within a month or less.


    I know that temperature is too much (and Yes I buyed 212 evo only !! to keep it down) but I am just telling you that 70 is not too much for a i7 ..
    My friend has i7 HP laptop, he has his temp always around 65-70'c .. Now he has not OCd and his laptop is fine. I have seen the situation for 1 year still its running !


    It's still not the optimal situation = 3= you must consider getting a more powerful cooler to keep the processor under more acceptable temps., unless you are trying to prove some kind of point by OCing an i7 and keep it with those temps using only the 212 evo.
  11. I just want to say if its 70 OCd its not so worrying state, but he needs a liquid cooler with radiator kept outside the box ! :)
  12. My temps at 4.2 are normally under 70° at full load with prime95, actually with this cooler (CM 212 EVO) I don´t think going up. I am aware that if I want to reach higher speeds, I MUST change for a LC, like a H100i.
  13. Best answer
    Jaime Delgado said:
    My temps at 4.2 are normally under 70° at full load with prime95, actually with this cooler (CM 212 EVO) I don´t think going up. I am aware that if I want to reach higher speeds, I MUST change for a LC, like a H100i.


    There you go. I told you 212 evo can withstand high spikes! But don't let it cross 75'c or so. Then you'll have to go for h100i. Just diagnose it for a few days !
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