5900X Overclock

[Jonnygrunge]

Hi All, got my new hardware and have finally settled on a stable overclock on the 5900X.

Any way been on Intel for 14 years, last AMD chip was an Athlon 64 X2 4400+

I am using PBO for some nice single core boots of over 5GHz, and then using a manual overclock using the Dynamic OC function, great how the Dark Hero supports best of both worlds! Manual OC is 4.55GHz all cores at 1.21V tops out at 84oC stress testing using Real Bench.
Idle temps are in the 40s, and gaming temps are mid 60s. CPU is under a EK custom loop on a shared 360 Rad with my 3090! Block is the new EK Quantum Magnitude D-RGB.
No idea what really to expect temperature wise, but these things get hot very quickly, with minute volts, even under water.....

 

[Journey]

Yes, that is what happens when you increase the density of the transistors and pack more of them in to a similar space on a substrate, they get hot fast.

 

[Grim5]

Normal

Chiplets get hotter and hotter faster than monolithic at the same tdp

that being said, 84c at 1.21v is a tad bit higher than expected but this may be due to your 3090 saturating the loop, a single 360mm isn't ideal for a 3090 and cpu - I'm guessing the temps on your 3090 is between 60c and 70c

 

[Jonnygrunge]

Normal

Chiplets get hotter and hotter faster than monolithic at the same tdp

that being said, 84c at 1.21v is a tad bit higher than expected but this may be due to your 3090 saturating the loop, a single 360mm isn't ideal for a 3090 and cpu - I'm guessing the temps on your 3090 is between 60c and 70c

GPU is sitting at 45oC, may try dropping the vcore a tad and retest...
Bear in mind that is for all cores and threads at a constant 4.55GHz, as I use dynamic OC to switch from PBO to Manual OC at desired current...

My 9900k would hit low 90s during the same test.

So for heavier workloads and stress testing it will use the CPU to its fullest potential. Do you not find PBO, sets vcore to crazy values to reach single thread higher clock values.