CPU undervolting

Most computer enthusiasts have heard of CPU overclocking to get higher performance, usually requiring higher CPU voltage leading to more power consumption and more heat. In the case of my Thinkpad X61, I wanted the opposite: undervolting the CPU to increase the battery life and have a quieter …

TL;DR

WARNING 1: the update is done at your own risk and may brick your computer.

WARNING 2: this will wipe all data on the target USB device.

WARNING 3: do not use SYSLINUX MEMDISK driver to boot it directly with eg. Grub. The Lenovo BIOS updater use the …