amd cpu is using more and more power when its hot and hotter. why?

[Chiminka]

this is before and after some stress tests. how can i stop it from getting more and more power

[Zando_]

Not quite clear what you're asking. Are you wondering why it pulls more power when under more load? What stress tests are you running? 

[Kilrah]

If this is when the benchmark is not running and you're still drawing 100W then something else is running that's pretty heavy on the CPU.

[Tetras]

If those are running benchmark and after doing nothing then I'd guess either your CPU is not actually idle, or you have a high power mode enabled. I assume you haven't been in the BIOS to turn off C-States, since you'd know that already.

[porina]

Not sure what I'm looking at in those screenshots.

 

In general, there is a phenomenon with silicon called thermal runaway. In short, the hotter it is, the more power it uses to do a certain thing, which means it gets hotter, which means it takes more power. Repeat until either the magic smoke escapes, or some safety mechanism kicks in to stop the cycle. On CPUs, that would be thermal limiting as a last line of defence.

[Beerzerker]

7 hours ago, porina said:

Not sure what I'm looking at in those screenshots.

 

In general, there is a phenomenon with silicon called thermal runaway. In short, the hotter it is, the more power it uses to do a certain thing, which means it gets hotter, which means it takes more power. Repeat until either the magic smoke escapes, or some safety mechanism kicks in to stop the cycle. On CPUs, that would be thermal limiting as a last line of defence.

System specs would be helpful here.
Also, is it being ran at stock or in an overclocked state? Don't know what chip you're running is why I'm asking and some system specs would be helpful here.

[Agall]

59 minutes ago, Chiminka said:

this is before and after some stress tests. how can i stop it from getting more and more power

Higher temperatures on silicon increase resistance, so if you've already soaked it with an initial run and its no longer a cold run, you're likely to have a higher operating temperature and potentially higher power draw to maintain the same clock speeds.

[Chiminka]

15 hours ago, Beerzerker said:

System specs would be helpful here.
Also, is it being ran at stock or in an overclocked state? Don't know what chip you're running is why I'm asking and some system specs would be helpful here.

Ryzen 9 5950x oc 4,1all core 1,1375v

32gb ram 3600

3060 

 

[Chiminka]

15 hours ago, Zando_ said:

Not quite clear what you're asking. Are you wondering why it pulls more power when under more load? What stress tests are you running? 

I wonder why its pulling more power when its getting hotter. 

 

[Kilrah]

3 hours ago, Chiminka said:

I wonder why its pulling more power when its getting hotter. 

 

As mentioned earlier there's nothing suggesting this happens with the info we've been given. We don't know what you're doing when those screenshots were taken, all we can see is the CPU is by far not idle, and the first conclusion that comes to mind is "whatever is using the CPU is drawing more power in one than the other".