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Core i9 11900KF Sample Hits 98 Degrees C cooled with 360mm AIO Under Load
Right disclaimers first, we've seen comparable stories with Comet Lake before release, which turned out much better in the end. None the less as the titles say, an all-core boost on the pending Rocket lake Core i9 11900KF resulted at 98 Degrees C under all-core load.
You can fire off many scenarios here, wrongly installed liquid cooler, power stage PL2 locked at 250 Watt for a far too long time, incompatible or unrefined BIOS applying wrong voltages ... and well fill it in yourself.
Some folks at the Chinese tech forum ChipHell have access to Core i9-11900KF and when they stressed it at what seem to be stock settings (all-core boost frequency of 4.80 GHz) it would hit 98 Degrees C, and that's on an LCS cooler 360mm as configuration. AIDA64 was used in the FPU stress test to create load, normally on such a cooler and say Comet Lake, you'd hit 80 Degrees there. CPU-Z reports a core voltage of 1.401V which I find too high and thus that can be the reason behind the high temps. Make of it what you will, but if it's the voltage then tweaking Rocket lake is going to be difficult.
Additional sources: 9550pro (Twitter), ChipHell Forums
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Evlmj
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#5882267 Posted on: 01/29/2021 12:05 AM
Temperature is normal for a load voltage of 1.4v, its insane, wonder what LLC was used too, for 4.8Ghz a decent chip shouldnt need more than 1.1v to run a stress test, my 9900K does prime95 at 5ghz 1.1v in load...
Temperature is normal for a load voltage of 1.4v, its insane, wonder what LLC was used too, for 4.8Ghz a decent chip shouldnt need more than 1.1v to run a stress test, my 9900K does prime95 at 5ghz 1.1v in load...
toyo
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#5882269 Posted on: 01/29/2021 12:17 AM
If this is under AIDA64 FPU, under prime95 AVX it will throttle like hell, which means it will be basically impossible to properly stresstest overclocks on most samples.
Also, for those being distrustful about this, remember that Rocket Lake has AVX-512, which runs even hotter than AVX2.
If this is under AIDA64 FPU, under prime95 AVX it will throttle like hell, which means it will be basically impossible to properly stresstest overclocks on most samples.
Also, for those being distrustful about this, remember that Rocket Lake has AVX-512, which runs even hotter than AVX2.
-Tj-
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#5882272 Posted on: 01/29/2021 12:27 AM
Any intel cpu since IvyBridge & over 1.30v will run hot imo.
Im still looking at 11700KF though, hopefully it will deliver when it does.
Although this i5 10500 OC @ 4.3 all core looks to be doing pretty well atm, I haven't came a cross a game that would cripple it. Need better gpu first
Any intel cpu since IvyBridge & over 1.30v will run hot imo.
Im still looking at 11700KF though, hopefully it will deliver when it does.
Although this i5 10500 OC @ 4.3 all core looks to be doing pretty well atm, I haven't came a cross a game that would cripple it. Need better gpu first
IceVip
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Posts: 881
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#5882276 Posted on: 01/29/2021 12:49 AM
pathetic. my 10980xe does 99c
pathetic. my 10980xe does 99c
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are they even soldering these pre-release samples ?