Lenovo P1 Gen - 4 Bios

This requires removing the bottom cover (7x Torx T5 screws). Locate the coin-cell battery (CR2032) on the motherboard. Disconnect it for 1 minute, then reconnect.

Important: The P1 Gen 4 may also have a "Smart CMOS" feature. After clearing, the first boot will take 2-3 minutes—this is normal as it re-trains memory.

The Lenovo ThinkPad P1 Gen 4 BIOS is a mature, secure, and configurable UEFI environment. Its key strengths are fine-grained Thunderbolt security, dual graphics mode selection, and robust power management. However, limitations include no undervolting (post-Plundervolt), limited S3 sleep support, and a hidden advanced menu that requires workarounds.

Final Recommendations:

Report compiled from Lenovo official documentation, P1G4 maintenance manuals, Intel UEFI specifications, and community findings (ThinkPad forums, Reddit r/thinkpad, Linux kernel bugzilla).

Lenovo ThinkPad P1 Gen 4 , the BIOS (Basic Input/Output System) or UEFI firmware manages critical hardware configurations, boot priority, and security features. How to Access BIOS To enter the BIOS setup utility on your ThinkPad P1 Gen 4 , use one of the following methods: Function Key Method : Turn on the computer and repeatedly tap ) as soon as the red Lenovo logo appears. Startup Interrupt Menu : Alternatively, press during startup to open the interrupt menu, then select to enter BIOS. Windows Recovery Method : If the system boots too fast, go to Settings > Update & Security > Recovery (Windows 10) or System > Recovery (Windows 11). Select Restart now under Advanced Startup, then navigate to Troubleshoot > Advanced options > UEFI Firmware Settings BIOS Update Methods

Keeping the BIOS updated can resolve system board issues and improve performance. Lenovo Support An easy guide to BIOS - ThinkPad P1 - Lenovo lenovo p1 gen 4 bios

When the logo screen is displayed, press F1 or Fn+F1 to enter the BIOS menu.

Every ThinkPad P1 Gen 4 has a tiny, recessed Novo button on the right side of the chassis (near the power port).

Not all BIOS settings need to be changed. However, optimizing a few key areas can dramatically improve your experience. This requires removing the bottom cover (7x Torx T5 screws)

On P1G4, the standard BIOS hides many advanced options. They can be accessed via:

Hidden settings include:

Symptom: Annoying whoosh sound in a quiet room. Solution: Lenovo’s default BIOS (versions 1.15 and earlier) had aggressive fan curves. Important: The P1 Gen 4 may also have