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Pentium g3258, stock clock, Corair H100i, Stress/benchmark temps 80-100 C

I have a brand new system with a Pentium g3258 processor, and a Corsair H100i cooling it. Despite it being a low TPD chip and a rather overkill cooler, the processor runs very hot, specifically on the stress test and worse on the bench-marking test. (both in the intel comand software) I planed to overclock this chip, but if it is already this hot i'm not sure it's a good idea.

My hope is that it is poorly applied thermal paste or something similar to this. I haven't had a chance to check this, but i will update when i have time.
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  1. Best answer
    BittCloud said:
    I have a brand new system with a Pentium g3258 processor, and a Corsair H100i cooling it. Despite it being a low TPD chip and a rather overkill cooler, the processor runs very hot, specifically on the stress test and worse on the bench-marking test. (both in the intel comand software) I planed to overclock this chip, but if it is already this hot i'm not sure it's a good idea.

    My hope is that it is poorly applied thermal paste or something similar to this. I haven't had a chance to check this, but i will update when i have time.


    Like you said, it is most likely poorly applied thermal paste.

    Nonetheless here are some other issues there could be:
    1. The water cooler doesn't have enough water in it.
    2. It might be overclocked without you knowing it. (system glitch; use CPU-Z to see whether that is happening or not)
  2. I had miss mounted the back plate causing the pump block to sit unevenly. I feel pretty dumb. but oh well, fixed now, top temps in the high sixties.
  3. BittCloud said:
    I had miss mounted the back plate causing the pump block to sit unevenly. I feel pretty dumb. but oh well, fixed now, top temps in the high sixties.


    Still sounds high for that CPU. Some people overclocked to 4.7Ghz and not getting that hot using a h100i.

    As you had to remount I would recommend re applying new paste (and cleaning off the old).
  4. RobCrezz said:
    BittCloud said:
    I had miss mounted the back plate causing the pump block to sit unevenly. I feel pretty dumb. but oh well, fixed now, top temps in the high sixties.


    Still sounds high for that CPU. Some people overclocked to 4.7Ghz and not getting that hot using a h100i.

    As you had to remount I would recommend re applying new paste (and cleaning off the old).


    I had planned to do this anyways, but 65 C under 100% load doesn't seem all that high to me. This is my first liquid cooler and dual core processor though so experience is limited.
  5. BittCloud said:
    RobCrezz said:
    BittCloud said:
    I had miss mounted the back plate causing the pump block to sit unevenly. I feel pretty dumb. but oh well, fixed now, top temps in the high sixties.


    Still sounds high for that CPU. Some people overclocked to 4.7Ghz and not getting that hot using a h100i.

    As you had to remount I would recommend re applying new paste (and cleaning off the old).


    I had planned to do this anyways, but 65 C under 100% load doesn't seem all that high to me. This is my first liquid cooler and dual core processor though so experience is limited.


    https://www.youtube.com/watch?v=QBfXruwe8w4&list=UUXuqSBlHAE6Xw-yeJA0Tunw

    Results for pentium at 10:40.
  6. RobCrezz said:
    BittCloud said:
    RobCrezz said:
    BittCloud said:
    I had miss mounted the back plate causing the pump block to sit unevenly. I feel pretty dumb. but oh well, fixed now, top temps in the high sixties.


    Still sounds high for that CPU. Some people overclocked to 4.7Ghz and not getting that hot using a h100i.

    As you had to remount I would recommend re applying new paste (and cleaning off the old).


    I had planned to do this anyways, but 65 C under 100% load doesn't seem all that high to me. This is my first liquid cooler and dual core processor though so experience is limited.


    https://www.youtube.com/watch?v=QBfXruwe8w4&list=UUXuqSBlHAE6Xw-yeJA0Tunw

    Results for pentium at 10:40.


    I re-applied the thermal paste, i used antec formula 7, but it doesn't seem to have made a huge difference, i am ideling around 30 C and load at 100% on the intel command center stress test brings it up to a max of 67. I'm not sure where to go from here, these temps are certainly safe, and the TP certainly hasn't had time to set, but from that linus clip it seems like it should be lower. I wonder what program he was using to put the CPU under load, and how high the Load percent was...
  7. Yeah your temps arent dangerous now by any means. Have you overclocked yet, or are you at stock speed?

    Its also possible your ambient temps are just much higher than his.
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