Lenovo Legion 7i (2022) RTX 3080 Ti 12900HX Low CPU power issue when gaming

[TheNaitsyrk]

Hi there,

 

I noticed that the CPU power when gaming is limited to 35W which is really low.

 

Is there a way to increase that limit? 

 

When I run proper rendering software without GPU involvement, CPU runs full power like 157W or so

 

Latest bios installed, with original everything. Laptop model: 

Legion 7 16IAX7 - Type 82TD

Thanks in advance

[jaslion]

This is a limit in the higher end gpu tiers so the gpu can recieve more power. It adjusts dynamically according to needs.

 

That cpu isnt drawing 157w when working alone otherwise that laptop would basically be on fire

[TheNaitsyrk]

Just now, jaslion said:

This is a limit in the higher end gpu tiers so the gpu can recieve more power. It adjusts dynamically according to needs.

 

That cpu isnt drawing 157w when working alone otherwise that laptop would basically be on fire

According to PL2 on Intel XTU it is. 

 

Just annoying because I can't get it to clock higher in Heaven 4 etc for full power.

 

The issue is 300W brick, but CPU sits at 35W and GPU at 170-175W which is annoying. Therefore it's not even going over 2/3rd of power available to it. I wonder if I can change it.

[jaslion]

3 minutes ago, TheNaitsyrk said:

According to PL2 on Intel XTU it is. 

 

Just annoying because I can't get it to clock higher in Heaven 4 etc for full power.

 

The issue is 300W brick, but CPU sits at 35W and GPU at 170-175W which is annoying. Therefore it's not even going over 2/3rd of power available to it. I wonder if I can change it.

What you can try is in power plans adjust the cpu so it is forced to use more

[TheNaitsyrk]

Just now, jaslion said:

What you can try is in power plans adjust the cpu so it is forced to use more

Yeah, or perhaps Thottlestop?

[jaslion]

3 minutes ago, TheNaitsyrk said:

Yeah, or perhaps Thottlestop?

Id say start powerplans first and see what happens I know lenovo's software and windows sometimes gonin conflict there.

 

If that doesnt work throtthlestop is a good starting point

 

I am skeptical about the 160w figure still as that is very high for a mobilr cpu. I know the 12900hx can go decently high but usually not that far as cooling becomes a big problem. I think this is also out of spec behavior.

[TheNaitsyrk]

1 minute ago, jaslion said:

Id say start powerplans first and see what happens I know lenovo's software and windows sometimes gonin conflict there.

 

If that doesnt work throtthlestop is a good starting point

Thanks for the help I shall defo try it

 

I did set the system to performance / my own power plan but no dice

[genexis_x]

12 hours ago, TheNaitsyrk said:

CPU sits at 35W and GPU at 170-175W which is annoying

That is Dynamic Boost working as intended.

Try disabling it: In Nvidia Control Panel, Manage 3D Settings > Power Management Mode > Prefer Max Perf