Temps going over 90 Celsius when toggling fpu in aida 64

So I have recently built myself a new pc, my first build in the ncase m1. After quite a lot of research I had determined that the h100i v2 would not only fit but also allow for overclocking with the i7 7700 k and I had read people reached 5ghz. Yet when I go and overclock the cpu to 4.8 ghz with 1.315 V the temps stressing only the cpu are about 75~80 Celsius but when I toggle fpu they reach 95 even 100 and it throttles and I turn it off immediatly.

Is this normal, does it have to do with the h100i, I was thinking of changing the thermal paste since it's giving me these high temps. idle temps are about 37-41 C with 27 C in my room.

Build

cpu: i7 7700k @4.8 Ghz
mobo: asus strix z270i
cooler: h100i v2
Gpu: gtx 1070 FE
Ram: 16gb corsair vengeance 3000Mhz
Storage: samsung 960 evo 500gb m.2
PS: corsair sf600
Reply to _GiGiO_
5 answers Last reply
More about temps celsius toggling fpu aida
  1. the problem is... the silicon lottery

    all 7700K's are not equal. Some people will reach higher clocks with less voltage, some wont

    when you're stress testing, are you running the h100i v2 pump and fans at full speed?

    If you used the stock pre-applied thermal paste that comes with the cooler, then it's decent enough quality. My last three coolers have been corsair AIO's and i've never had a problem with the TIM

    also, what is your airflow/fan setup and have you got the h100i v2 as an intake or exhaust?
    Reply to blockhead78
  2. Dont stress the FPU, that uses the AVX instruction set which, if this is a gaming pc, is an unrealistic type of load your computer will never face when gaming.
    Reply to Dunlop0078
  3. I still haven't managed to install corsair link since there is no usb 2.0 header on my mobo so it's using the default fan speeds and I have it set up as my intake so it has fresh air from outside, at first I had it as push pull, then I changed it to exhaust but in either cases the tubes were blocking to radiator so it didn't receive enough airflow so now I have it set to intake and the temps are a bit better.
    Reply to _GiGiO_
  4. _GiGiO_ said:
    I still haven't managed to install corsair link since there is no usb 2.0 header on my mobo so it's using the default fan speeds and I have it set up as my intake so it has fresh air from outside, at first I had it as push pull, then I changed it to exhaust but in either cases the tubes were blocking to radiator so it didn't receive enough airflow so now I have it set to intake and the temps are a bit better.


    hmmm... that's unfortunate, as it means you can't control the pump at all
    Reply to blockhead78
  5. I have finally gotten the appopriate adaptor and with the pump maxed and 660 rpm the cpu idles at around 30-35 degrees and with the real bench stress test with everything at max rpm the temps are around 70 degrees
    Reply to _GiGiO_
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