Thought to share this to other users.
Model: Lenovo Legion 7 16IRX8
i9-13900HX
RTX4070
BIOS VERSION: KWCN42WW
Step 1: Change BIOS setup (press F2 after power on)
- Load defaults
- "Legion Optimization" to Enabled, which will disable virtualization
- "UnderVolt Protection" to Disabled
And then Save and Exit
Step 2: Boot into Windows and adjust ThrottleStop
The "Unlock Adjustable Voltage" should be enabled.
I reached -0.15v for CPU Core, and -0.0479v for CPU cache. The system gets unstable lower than that.
Benefit
At default Balance mode, CPU PKG power is capped at 120 Watt. During TS Bench, P cores can maintain 4200 MHz over previous 4000 MHz. Not a big deal in real life, but who cares.
Model: Lenovo Legion 7 16IRX8
i9-13900HX
RTX4070
BIOS VERSION: KWCN42WW
Step 1: Change BIOS setup (press F2 after power on)
- Load defaults
- "Legion Optimization" to Enabled, which will disable virtualization
- "UnderVolt Protection" to Disabled
And then Save and Exit
Step 2: Boot into Windows and adjust ThrottleStop
The "Unlock Adjustable Voltage" should be enabled.
I reached -0.15v for CPU Core, and -0.0479v for CPU cache. The system gets unstable lower than that.
Benefit
At default Balance mode, CPU PKG power is capped at 120 Watt. During TS Bench, P cores can maintain 4200 MHz over previous 4000 MHz. Not a big deal in real life, but who cares.