Legion Lenovo 7i (i9-14900HX) Undervolting

[Miguel66]

I managed 33500 r23 multicore without disabling background stuff and processes using your guide, V549, awesome. Am I supposed to be constantly thermal throttling during the run? If I'm not supposed to be throttling, that's a pretty good score isn't it? I've been adjusting mv boost, cache ratio, those two do have a significant role. I didn't realise that the mv boost adjusts the IA voltage offset in HWinfo.

 

[Valour549]

In a single R23 run, you shouldn't be thermal throttling. In a 10-minute run, you will likely be thermal throttling. There's no need to adjust mV boost or cache ratio outside of what's mentioned in the guide.

 

[Miguel66]

Thank you for the in depth guide and advice. The only way I can undervolt the core beyond 137mv is by raising the LLC, but when I do that I can never reach 33500k on a 10min R23 run, best I get is around 33200 using various LLC, though at stock LLC 1.0/1.1 I hit the high score. Does anybody know why the stock would be 1.0/1.1 rather than 1.0/1.0? And, what LLC are you guys using? Is it just the quality of silicon?

 

[vicked]

Hello, i don't see the mvboost@800 option in throttlestop. Has it been removed? i an trying to undervolt my legion 7i pro 14900hx 4080.

 

[unclewebb]

mvboost@800

Click on the new V/F Point button in the FIVR window. To enter a mV Boost value, just enter the amount into the Profile 1 box in the Range section. Do this for both the core and the cache.

A 150 mV boost at 800 MHz should look like this. Press the Apply button to make sure the value ends up on the left side. Use TS 9.7.2

I thought that being able to fine tune the higher MHz values might be useful for someone. Not a lot of feedback yet. Most users will probably stick to only entering core and cache values at 800 MHz.

 

[vicked]

Click on the new V/F Point button in the FIVR window. To enter a mV Boost value, just enter the amount into the Profile 1 box in the Range section. Do this for both the core and the cache.

A 150 mV boost at 800 MHz should look like this. Press the Apply button to make sure the value ends up on the left side. Use TS 9.7.2

I thought that being able to fine tune the higher MHz values might be useful for someone. Not a lot of feedback yet. Most users will probably stick to only entering core and cache values at 800 MHz.

View attachment 380434

Thank you this. i have to tick both core and cache offsets, right?

 

[vicked]

Disregard the last question, i figured it out.