H100i + 4790k + Asus maximus vii hero - CPU overheating

Menkes

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Aug 25, 2014
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Hello everyone,

I'm having some over heating issues under load with my brand new 4790k using Corsair h100i.

Idle temps are at about 25-30c with a room temp of 21c.

But, while under load in prime95 i climb to 95c (without any overclock!) after 5 seconds.

I also heard that my MB plays with the Vcore can that have any effect? how do i turn that kind of thing off? i never touched the BIOS so its in factory settings, but sometimes my PC will load up saying "overclock failed", even though CPUZ says the Vcore is at 1.072 (stock) and the core clock is at 4000mhz (also stock).

I have also tested my pump on my H100i and my bios is reading a fan speed out of it so i know its working. I have also checked the mounting to the CPU and its perfect, very tight fit (re-applied thermal paste after removal)

I'm running out of ideas to what is causing such heat in stock settings...

Please help!

Update:

I tested my old H80i, which set my i7 870 overclocked at 4.2Ghz (up from 2.9) at 75c at max load after 1 hour. Again no luck, my temps climbed to 98c at this time so i know its not a pump fault 100%.

Hope this extra info helps..
 
Solution
Clear your CMOS, then check your voltages again. Note any differences.

Might be a SUPER hot chip, in which case RMA.


Have you tested real world temps?

Menkes

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Aug 25, 2014
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Temps in normal use are around 50-60 while gaming, and that's normal but i cant test any future overclock stability like this =\
 

Menkes

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Aug 25, 2014
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Real world temps are within normal and safe ranges, but i will want to overclock thats why i bought this motherboard and CPU. i will try clearing everything and post back, thanks.
 

Menkes

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Aug 25, 2014
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Thanks for the replies everyone, it ended up just being a hot-chip.

I RMA'd it and now i hit 70-75 max after 1 hour of stress testing in prime95 (max temp test) with the new chip.

Hope this help anyone in the future, if you got a 4790k and its hotter than needed, it might be defective...