What's happening here?

iamgigglz · Jan 11, 2020

I have my 9700k set at 50x100Mhz all core OC with a -0.08v offset. That's all I've done.
When I run a synthetic stress test, I get this:

This is a 3 minute graph. I've left it running for half an hour and it doesn't change.
The wiggly line is package temp, oscillating between 61 and 78deg - why is it doing that??
There's throttling of any kind happening - yellow line is CPU usage, pale blue is number of cores in use, dark blue CPU voltage (1.306 ~ 1.352v), orange is frequency.

PSU: Antec EAG750 EarthWatts Gold Pro
Motherboard: Asus Maximus Hero X
Cooling: Corsair H100i Pro

chriswp · Jan 11, 2020

Fans spinning up and down?

iamgigglz · Jan 11, 2020

chriswp said:
Fans spinning up and down?

Didn't even think of that to be honest.
Not the issue though. I locked all my fans and the AIO pump at 100% and changed the graph to monitor individual core temps. Same result.

Ebrahim Ali · Jan 22, 2020

Power throttling maybe?

iamgigglz · Jan 22, 2020

Ebrahim Ali said:
Power throttling maybe?

Interesting thought. I’m recovering from surgery on my right wrist so no gaming for a while. Good opportunity to play with benchmarks etc.
I’ll check your theory tomorrow.

Jero814 · Jan 22, 2020

Run the tests again and just monitor voltage closely - on a graph like this I am not sure how closely the voltage changes can be tracked with all the various scales being used.

The temperatures seem uniform in change - almost like a sine wave and we know basically heat on a cpu is generated via voltage applied to it. My guess would be something is happening ito voltage being applied to the cpu

Oj0 · Jan 22, 2020

It appears that the program you're using is cycling through different types of load. 100% load isn't 100% load (that's why an AVX load increases temperatures far beyond normal usage).

PandaAttack1 · Jan 22, 2020

iamgigglz said:
I have my 9700k set at 50x100Mhz all core OC with a -0.08v offset. That's all I've done.
When I run a synthetic stress test, I get this:

This is a 3 minute graph. I've left it running for half an hour and it doesn't change.
The wiggly line is package temp, oscillating between 61 and 78deg - why is it doing that??
There's throttling of any kind happening - yellow line is CPU usage, pale blue is number of cores in use, dark blue CPU voltage (1.306 ~ 1.352v), orange is frequency.

PSU: Antec EAG750 EarthWatts Gold Pro
Motherboard: Asus Maximus Hero X
Cooling: Corsair H100i Pro

Looks like a throttle of some sorts bud.

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What's happening here?

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