Can't hit a stable 5ghz OC with i7-10700k using H150i RGB PRO XT?

[Eden]

Running prime95 and monitoring with open hardware monitor and intel extreme tuning utility, about 15-20 mins into the test, running at max load, my cpu starts hitting 100c and throttling. Seems a bit underwhelming with a £160 cooler, when my cpu can already hit 4.8 base turbo at about 72c peak. Voltage is adaptive too, going from 1.34 - 1.36v

[Washell]

Google "silicon lottery".

[Bing Chilling]

im not sure what you'd like us to tell you?
it's thermal throttling you've already figured that out
so i mean, get a better cooler and/or try to lower voltages and see if you can get it stable
other then that

Originally posted by Washell:

Google "silicon lottery".

[KeplersConjecture]

Comet Lake is played out, the old Skylake process is about as redline as the chips can get. Probably not much more headroom in that chip outside of going sub-ambiant.

[_I_]

test-oc-repeat

hot = lower voltage or oc
unstable = raise voltage or lower oc
cool+stable = raise oc

https://www.overclock.net/forums/intel-cpus.5/

[Bing Chilling]

Originally posted by _I_:

test-oc-repeat

hot = lower voltage or oc
unstable = raise voltage or lower oc
cool+stable = raise oc

https://www.overclock.net/forums/intel-cpus.5/

when you don't even read op and just post generic garbage

[_I_]

the op may have hit the wall on that cpu where it take much more voltage and better cooling to oc any farther
but testing is required to verify its limits

every cpu is different, even with same model and batch/wafer
same wafer can produce mobile cpus with cores disabled to the highest xeons

[Jelly Donut]

Originally posted by ꧁꧂StoneYoda꧁꧂:

when you don't even read op and just post generic garbage

Clearly you don't know how Silicon Lottery and Overclocking works, considering every CPU doesn't work exactly the same when you are pushing them to operate at speeds and power outside their stock settings.

[dOBER]

could be multibe things. bad/to much thermal compound, not enough mounting pressure, bad
solder/bad contact with ihs. i would check my mounting pressure and compound first.

for example i have an i9-9900k which means same amount of cores/threads and on 5ghz allcore 1.36v my cpu hits 60°C max (prime 95 large fft test) . i removed solder, ihs and did direct die with thermal grizzly conductonau.

[Bing Chilling]

Originally posted by UponTheSky:

Originally posted by ꧁꧂StoneYoda꧁꧂:

when you don't even read op and just post generic garbage

Clearly you don't know how Silicon Lottery and Overclocking works, considering every CPU doesn't work exactly the same when you are pushing them to operate at speeds and power outside their stock settings.

imagine not reading my first post and then coming at me with this garbage.

Originally posted by ꧁꧂StoneYoda꧁꧂:

im not sure what you'd like us to tell you?
it's thermal throttling you've already figured that out
so i mean, get a better cooler and/or try to lower voltages and see if you can get it stable
other then that

Originally posted by Washell:

Google "silicon lottery".

[dOBER]

Originally posted by UponTheSky:

Originally posted by ꧁꧂StoneYoda꧁꧂:

when you don't even read op and just post generic garbage

Clearly you don't know how Silicon Lottery and Overclocking works, considering every CPU doesn't work exactly the same when you are pushing them to operate at speeds and power outside their stock settings.

silicon lottery doesnt explain why he hits 100°C 5ghz allcore with only 1.36v and a decent aio!

[Grimy_RIck]

Originally posted by dOBER:

Originally posted by UponTheSky:

Clearly you don't know how Silicon Lottery and Overclocking works, considering every CPU doesn't work exactly the same when you are pushing them to operate at speeds and power outside their stock settings.

silicon lottery doesnt explain why he hits 100°C 5ghz allcore with only 1.36v and a decent aio!

I agree my i9-9900k at 5ghz allcore gets no where near that with a 240 AIO slapped on it, something is amiss here.

[Eden]

what should i do? re-apply thermal paste?

[_I_]

make sure the pump is at 100% all of the time
and fans are on the cpu fan headers or using a pwm splitter for them

watch core temps with hwmonitor to veirfy all cores are within 5c, if they are farther than 5c apart re-apply thermal paste

[Eden]

I reapplied with the premium noctua paste, theres maybe 5c difference now, i hit 95c instead of 100c so yea not a big difference, one of the cores was 7c higher than others, but other than that, they were all within 5c of each other

this was at 4.9, it seems my cpu cant handle anything above 4.8

runs at 60c at 4.7

runs at 95c at 4.9

[Monk]

Originally posted by dOBER:

Originally posted by UponTheSky:

Clearly you don't know how Silicon Lottery and Overclocking works, considering every CPU doesn't work exactly the same when you are pushing them to operate at speeds and power outside their stock settings.

silicon lottery doesnt explain why he hits 100°C 5ghz allcore with only 1.36v and a decent aio!

It does, he just lost it is all :(