CPU load different apps
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tito
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Message 8760 - Posted: 26 Mar 2023, 10:02:38 UTC

I couldn't find.
I have seen different temperatures of CPU under different applications.
Because I crunch on laptop I would like to avoid apps that generates more heat, but which are those?
Shorts gives higher temps for sure, while averages are, well - average.
Is there any info available?

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Message 8761 - Posted: 26 Mar 2023, 10:33:18 UTC - in response to Message 8760.
Last modified: 4 Apr 2023, 13:09:38 UTC

I couldn't find.
I have seen different temperatures of CPU under different applications.
Because I crunch on laptop I would like to avoid apps that generates more heat, but which are those?
Shorts gives higher temps for sure, while averages are, well - average.
Is there any info available?


Its different, if all cores are under full load you will get your standard clock.
I had the same issues with Ryzen and PBO. Limit your clock on windows and you are fine:

Type this in command prompt:

powercfg -attributes SUB_PROCESSOR 75b0ae3f-bce0-45a7-8c89-c9611c25e100 -ATTRIB_HIDE

You will have a new option under energy save plan:
Maximum processor frequency

and reduce the clock speed

or if you want this option forever change this in registry:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\54533251-82be-4824-96c1-47b60b740d00\75b0ae3f-bce0-45a7-8c89-c9611c25e100

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tito
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Message 8762 - Posted: 26 Mar 2023, 10:51:20 UTC - in response to Message 8761.

1) I'm sure short gave temp spike over average
2) That host is laptop with linux and before I switched off boost completely so I totally didn't read parameters as they were always under 60deg. Now I started boost again so I carefully followed temp and rpm reading. 3 short WU and 3 average gave temp increase over 6 average WU about 10 deg - till short finished. Then temp dropped again (fan rpm considered)
Doesn't matter - I decided to change laptop to universe and desktop to SR-base CPU

tito
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Message 8768 - Posted: 28 Mar 2023, 14:35:32 UTC - in response to Message 8762.

On desktop same story.
It's AMD 3900x
Frequency and voltage set manually to 3600@1,0v
22 x average gives temp of 52deg (1500rpm)
22 x short gives 62 deg (1500rpm)
Optimization is different, or maybe RAM not fast enough?

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Message 8769 - Posted: 28 Mar 2023, 14:43:56 UTC - in response to Message 8768.
Last modified: 28 Mar 2023, 14:46:58 UTC

On desktop same story.
It's AMD 3900x
Frequency and voltage set manually to 3600@1,0v
22 x average gives temp of 52deg (1500rpm)
22 x short gives 62 deg (1500rpm)
Optimization is different, or maybe RAM not fast enough?


The temps are fine. I had 94°C+. For the short Iam running with HT. The BPO is going up and down, HT is reducing the BPO to a fixed value while all cores are on full load.


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