Taming the Legion 5 Pro

Sett · July 23, 2023

Hey y'all!

tl;dr: Is there any way to limit Legion 5 Pro's GPU power budget?

I have an R7 5800h / RTX3070 Legion 5 Pro laptop and it is a beast. The trouble is I like my silence, and even if this baby got uncle Linus' stamp of approval, it's still a jet plane. I mean laptop.
I'm using Legion Fan Control to limit the noise to an acceptable level, letting it cap at ~85°C (GPU) and 90°C+ (CPU). So far so good.
The problem is, the cooling in this laptop is designed in a way that the heat from GPU bleeds over to CPU. This makes sense, because the GPU is much more power hungry, but it actually leaves very little temp headroom for the CPU when GPU is capped at 85°C.
Now, I don't mind sacrificing a bit of performance for the sake of sanity and/or longevity, so I've been looking for ways to tame it ever since I bought the thing. So far I was able to:
- switch it to quiet mode (duh)
- disable CPU boost

- limit CPU TDP a bit with Ryzen Controller
- make sad Pikachu face at the greyed out power slider in MSI Afterburner
- edit V/f curve to cap the GPU at 1300MHz (goes from ~120W to 100W in Heaven)

It all helps a bit, and without really impacting performance, but I'm afraid the only real solution would be to actually cap the power budget. So, Anybody know how?

Thanks