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Old 27-05-20, 09:59 AM
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10900k temps and core to core delta

so I decided to grab a 10900k for my new build judge all you want

Im busy playing with it and have found it very good for overclocking but at 1.345V 5.2ghz all cores if I run prime 95 avx small fit's it hits over 100 degrees instantly. Anyone else with one of these experiencing this just want to know its normal and not my waterblock mount???

Also I've noticed a core to core delta of a whopping 20 degrees

Is this normal?

Just want to judge my experience against someone else to make sure everything is normal and I've not got any loop issues

Running Aida64 cpu, FPU, cache stress test 1 hr with Valley in background
Cpu package 93 degrees, core temps 74 74 78 76 86 93 89 80 81 73

Running 3 x 360 rads in a lian li 011 dynamic xl D5 pump

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Old 27-05-20, 10:11 AM
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For a start thats a LOT of volts for a 10900K

Also AVX is probably not the best way to test and Id say those temps with your settings are normal
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Old 27-05-20, 10:18 AM
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Cheers Tom, I thought I was being Conservative with Volts

I could easily dial it down to 1.32/1.33 which was perfectly stable for hours on anything other than prime 95 small fft's which caused L0 cache errors instantly
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Old 27-05-20, 10:28 AM
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You may need to use an AVX offset clock speed. Basically you can get the CPU to lower the clock speeds when AVX is active by 200 or so MHz to make things more stable.

AVX is a huge power hog on Intel CPUs.
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Old 27-05-20, 10:34 AM
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I dont like using an offset as a lot of games nowadays use avx instructions so might as well run at the most stable avx clock I can get this cpu non avx stable at 5.3 no problem at these voltages.

The thing that threw me was watching a few videos of people running 1.45v 5.1ghz avx on a single 360 rad and getting lower temps in prime 95 I cant even run prime 95 without hitting 108 degrees at over a 1 volt less

Stablity wise I've done 12hrs occt non avx, 2hrs aida64 with valley running in the background no errors
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Old 27-05-20, 10:47 AM
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It is called a silicon lottery for a reason. Der8auer dropped on average 7-8 degrees by delidding the CPU. He will soon have a direct die mount. You might want to check that. Buildzoid recommended going Liquid Metal between IHS and CPU block instead of thermal paste if you want the best results. I would recommend at least Thermal Grizzly Kryonaut and don't put a pea-sized dot in the middle. Do a proper spread all over IHS like pro overclockers do when they mount pots. If you want to get balls to the wall with that CPU every bit matters.
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Old 27-05-20, 11:01 AM
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Does liquid metal on the IHS void warranty? I've got some thermal grizzly liquid metal lying around. Already used kryonaught and spead it thinly over the IHS for full cover
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Old 27-05-20, 11:04 AM
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Quote:
Originally Posted by steverebo View Post
Does liquid metal on the IHS void warranty? I've got some thermal grizzly liquid metal lying around. Already used kryonaught and spead it thinly over the IHS for full cover
Yes because it will smudge the writings on IHS. You need them to be readable to get the warranty.
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Old 27-05-20, 11:21 AM
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Quote:
Originally Posted by Avet View Post
It is called a silicon lottery for a reason. Der8auer dropped on average 7-8 degrees by delidding the CPU. He will soon have a direct die mount. You might want to check that. Buildzoid recommended going Liquid Metal between IHS and CPU block instead of thermal paste if you want the best results. I would recommend at least Thermal Grizzly Kryonaut and don't put a pea-sized dot in the middle. Do a proper spread all over IHS like pro overclockers do when they mount pots. If you want to get balls to the wall with that CPU every bit matters.
HE delidded with special techniques though. Not something you can typically do at home given the CPU is soldered.
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Old 27-05-20, 11:25 AM
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I did it to my 9700k its pretty easy but that chip cost me £250 im not really willing to risk my £530 chip.

Im gonna try to remount my cpu block and re-apply my thermal paste see if that makes any difference especially to the core to core delta as 20 degrees difference is ridiculous
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