Thursday, January 28th 2021
At Stock All-Core Boost, i9-11900KF "Rocket Lake" Hits 98°C with 360mm AIO CLC Under Stress
Intel's 11th Gen Core "Rocket Lake-S" processor is shaping up to be one hot chip. Enthusiasts on Chinese tech forum ChipHell with access to a Core i9-11900KF sample report, that when stressed at [apparently] stock settings, in which the processor hits its all-core boost frequency of 4.80 GHz, even a 360 mm all-in-one liquid CPU cooler struggles to keep the chip from hitting 100 °C, with core temperatures reaching 98 °C. The i9-11900KF comes with a disabled iGPU, which means all of its heat is generated by the core and uncore components of the GPU. AIDA64 was used, to apply multi-threaded stress on the processor (the burn-in test), while CPU-Z reports a core voltage of 1.401 V, it's not known whether this is a manual setting, the chip's VID, or whether the motherboard is trying to stabilize the 4.80 GHz clocks.
Sources:
9550pro (Twitter), ChipHell Forums, VideoCardz
91 Comments on At Stock All-Core Boost, i9-11900KF "Rocket Lake" Hits 98°C with 360mm AIO CLC Under Stress
Seeing this is supposed to be a recent test/ fake news the weather this time of year is a lot cooler than 37c in China so ambient doesn't pass the smell test.Yeah I've got avx offset and set at 0 and no drop in clocks.
AIO pump speed and fans are set to Balanced mode, there is also a setting above that which I will try later.
I didn't run this test on my 3800X but from other testing I did the new cpu only runs a few degree's warmer. Maybe 5c are most I was in the same 70c-78c range.
I hope a 5 min run was long enough also.
You're 9900K is still plenty fast enough.
Rocket Lake S has no upgrade path and kinda late to buy into another DDR4 platform.