Worked on latest BIOS version (1.36.0 / Jun 18 2025)

1. Unlock Undervolting

NOTE: Please disable Secure-boot before follow this guide

Use grub on Linux

  • Boot into grub bootloader
  • Press c to open command-line

Make grub Bootable device

  • Format USB as FAT32
  • Create EFI/boot directory
  • Download grubx64.efi, rename to bootx64.efi and put it to EFI/boot

Type these commands

setup_var CpuSetup 0xDA 0x0
setup_var CpuSetup 0x3E 0x0

2. Undervolt

Install ThrottleStop

Settings

TPL Settings

  • PL1: 45-90W
  • PL2: 25-45W

FIVR Settings

  • Unlock Adjustable Voltage for: CPU Core, CPU Cache, iGPU
    1. FIVR Control window - select CPU core/cache, iGPU
    2. One window below that, click on “unlock adjustable voltage” and apply in bottom right corner. Do that for all three.
    3. Above “Apply” button in bottom right, mark “OK - save voltages immediately” and click apply.
  • Disable and Lock Turbo Power Limits: Enable
  • Thermal Velocity Boost (TVB): Disable
  • CPU core offset: -80 mV
  • CPU cache offset: -75 mV
  • Intel iGPU offset: -60 mV
  • iGPU unslice offset: -60 mV