Is my 4790k defective? Insanely hot temperatures at stock speed + Noctua cooler

Alright, when I get home I'll watch the test and see what happens then report back.

try an older version of p95, the latest will give extreme heat.

Your temps look normal for a non-delidded 4790k. Everyone with DC has run into heat issue with latest version of prime 28.5/linx. Im on water, custom loop with 2 large rads and my temps were near 100C with just 1.3V, not much higher than my stock vcore of 1.2V. Then once I delidded and used liquid metal for tim1, now temps are in 70's with 1.3V

Like suggested you can use prime 27.9 (10C cooler temps) or prime 25.1 (15-17C cooler temps) or other tests like OCCT which uses earlier versions of prime with less heat.

Most that run prime 28.5 have delidded and exchanged tim1 to liquid metal. 4790k tim1 paste was meant for 88W which is rated tdp at stock. Prime 28.5 at stock on mine, the cpu alone consumes 145W, that far exceeds tim paste specs.

Ah. So I went and ran a few more benchmarks and here's what I got. (Ambient temps 68F) Prime95 28.5 certainly does heat the CPU up 30C more than 26.6!

Temps:
AIDA64: 75C max.
Intel Linpack Burn Test: 88C max.
Prime95 26.6 Small FFT test: 72C max.
Prime95 26.6 Blend test: 70C max.
Prime95 28.5 Blend test: 100C max.

Core Voltages:
Idle Voltage: 0.72V
AIDA64 voltage:1.264V
IntelBurnTest voltage: 1.264V
Prime95 26.6 Voltage: 1.248V
Prime95 28.5 Voltage: 1.264V



Do you think these are ok?

yep, all normal. Most that are not delidding, just use earlier versions of prime.... v26.6 would be fine. Worst case scenario if you are prime 26.6 stable but crash/bsod down the road in normal use, just bump up the vcore another notch.