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Do I need to drop kick my cpu into the bin

Anth4130

Anth4130

Anth4130

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Joined
29 Oct 2012
Posts
13
4790k
h100i with sp120s (push)
z97 pro gamer
16gb corsair vengeance pro
290x

Xmp disabled: temperatures are fine
xmp enabled; temperatures sky rocket (idle and occt)

I had to reapply the h100i so maybe it's the thermal paste I used (I have arctic silver on its way) or I used too much/little... but shouldn't it be running at a higher temp even at a 4.0ghz

If I play around with bios, 4.2ghz 4.3 4.4... temperatures sky rocket

When I'm running occt, it runs at 4.0ghz and temperatures are fine (unless I have xmp enabled them it goes to 4.4)

Any more detailed info yous need let me know.

I don't want to overclock my cpu to death but I'd like it to run at least the turbo speeds without trying to kill itself...
 
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On some boards, activating XMP affects not only the memory speed but also the turbo behaviour.
I've seen a couple of boards where activating XMP, also made the CPU use the top turbo clock even with all cores loaded.
If this is happening, that could be the cause of the higher temps.
Still, I think an h100i shouldn't be struggling with that.
What kind of temps are we talking under load ?
 
4.0ghz : 50-60 degrees (23 degrees idling)

XMP has hit 85 degrees

When I have XMP off and I've fiddled it myself it's went to around 81 degrees

When I'm playing games etc the temps are fine (@4.0 because I Darent do anything more)
 
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What are using to test the load temps ?
If its something like Intel Burn Test or Prime, they heat the chips up unrealistically hot, much more so than gaming at 100% load, or 3D rendering at 100% load.
85 deg is actually still in the safe range, although I like to keep mine in the low 70s.
If you suspect the cooler needs re-mounting and re-pasting then try that and see if it helps.
Are you looking at the cpu voltages under load @ 4.0 and 4.4 ?
If you leave it on 'auto' the board might be going a bit nuts on the voltage.
 
Ive been using OCCT to test.

BIOS is now updated to the current version. (just literally)

Temps are fine untouched (with turbo)

I haven't tried any adjustments as of yet.

Im waiting on a delivery so I can remove, clean and reapply thermal paste. Im just confused as to why it doesn't over heat when I'm running the test when stock?
 
On some setups XMP can change IMC voltages (not sure about VTT) and/or VCCSA which is both. Often to levels which are above the recommended and IMC/VTT voltages can have a fairly big implication on how warm a CPU runs and potentially one of the things that can kill an intel CPU if its running under sustained heavy load a lot of the time with them too high.

Grab something like HW Monitor and see if you can find out what they are actually running at with and without XMP enabled.
 
setup your ram manually

set the correct speed from the list,set dram voltage according to the ram and can leave timings on auto if you want or set them aswell according to the ram,its easy to do
 
I so don't think it's the cooler just going by a change in memory profile. There is something real funky going on, and I doubt it's the CPU itself.
 
So you are on the latest bios for the board ? have you cleared cmos and rebooted ?
 
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Thanks for all the info. I will be doing all of the above, reseating the cpu will be done when my new paste arrives... still waiting!

I believe XMP is messing with some volts but Ill have to double check.

Temps at idle, nothing touched in BIOS (apart from my fans). Turbo IS running fine. Memory running at 1333 (it is fine for 1866, I know the motherboard can take 1866+ as OC) but it wont even let me change it to 1600 without making the temps increase.

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Ok so Ive manually entered the RAM timings and left the voltage and temperatures are the same, idle and a quick stress test.

So seems its something with the XMP profile maybe? Im still considering changing the thermal paste.
 
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