The BIOS (UEFI) on the Lenovo ThinkPad P1 Gen 4 provides critical controls for its high-performance hardware, allowing you to manage everything from power-hungry graphics to advanced security features. Key BIOS Features

Graphics Switching: A vital feature for this model, allowing you to switch between Hybrid Graphics (uses integrated Intel UHD for efficiency) and Discrete Graphics (forces the NVIDIA GPU for maximum performance).

Save Custom Defaults: You can back up your preferred BIOS settings as "Customized BIOS Defaults," which is useful for quickly restoring a specific stable configuration after a reset.

Virtualization Support: Provides toggles for Intel Virtualization Technology (VT-x) and VT-d, necessary for running virtual machines or certain security features like Windows Hyper-V.

Keyboard Customisation: Includes a "Fn and Ctrl Key swap" feature under Config > Keyboard/Mouse, allowing you to change the physical layout behavior of these two keys.

Power & Battery: Options to disable the built-in battery temporarily (for safe internal repairs) and configure "Fast Startup".

Security & Device Control: Toggle specific hardware like Bluetooth, Wi-Fi, or the camera on or off at the hardware level. How to Access BIOS ThinkPad X1 Extreme Gen 4 / P1 Gen 4 User Guide - Lenovo

The Lenovo ThinkPad P1 Gen 4 BIOS (Basic Input/Output System) is a foundational UEFI firmware that manages the hardware-level configurations of your mobile workstation. Proper management of this firmware is essential for optimizing the performance of its 11th Gen Intel processors and advanced NVIDIA graphics. Accessing the BIOS on ThinkPad P1 Gen 4

To enter the BIOS setup utility, follow these primary methods:

Traditional Method: Restart your laptop and repeatedly tap the F1 or Fn+F1 key when the Lenovo logo appears.

Startup Interrupt: Power on the system and press Enter immediately to pause the boot process. A menu will appear; press F1 to enter the BIOS.

Windows Recovery: If you cannot access the BIOS via keys, go to Settings > System > Recovery > Advanced startup and select Restart now. After rebooting, navigate to Troubleshoot > Advanced options > UEFI Firmware Settings. Key BIOS Settings and Features

The ThinkPad P1 Gen 4 BIOS offers several critical configurations for power users:

Graphics Switching: Under Config > Display, you can switch between Hybrid Graphics (for battery saving) and Discrete Graphics (for maximum performance in CAD/rendering).

RAID Configuration: Supports creating RAID volumes for its dual M.2 SSD slots through the Intel RST configuration utility.

Memory Retraining: During some BIOS updates, the system may perform "Memory Retraining." This can cause a blank screen for several minutes while LED indicators (Esc, F1, F4) blink sequentially. Do not power off the device during this process.

Custom Defaults: You can save your preferred settings as Custom Defaults under the Restart menu, allowing you to restore them easily without resetting to factory values. How to Update the BIOS ThinkPad X1 Extreme Gen 4 / P1 Gen 4 User Guide - Lenovo

settings. . . . . . . . . . . . . . . . . 31. UEFI BIOS. . . . . . . . . . . . . . . . . 31. Enter the UEFI BIOS menu. . . . . . . An easy guide to BIOS - ThinkPad P1 - Lenovo

7. Power Management & Battery Features

• Battery Charge Threshold (under Config → Power):

  • Start charging when below (%): default 95.
  • Stop charging at (%): default 100.
  • Recommended for longevity: Start at 45-50%, Stop at 80-85%.

• Intel Rapid Start Technology: Disabled by default (uses S3 legacy).

• Wake Timers: Can be disabled to prevent unexpected wake from sleep.

Recommended actions before updating BIOS

1. Backup important data.
2. Connect the laptop to AC power.
3. Ensure battery ≥50% (prefer 100%).
4. Close all apps and temporarily disable full-disk encryption suspend if required by Lenovo update notes.
5. Read the BIOS release notes/KB for prerequisites and rollback instructions.
6. Have a recovery USB or external media ready if your device supports BIOS recovery.

BIOS Password

• Supervisor Password – The master key. Locks ALL BIOS settings. Do not lose this.
• Power-on Password – Asks for a password before booting the OS.
• NVMe Password – Hardens your SSD. If you forget this, the drive becomes a brick (no recovery possible).

Mastering the Lenovo P1 Gen 4 BIOS: The Ultimate Guide to Configuration, Updates, and Troubleshooting

The Lenovo ThinkPad P1 Gen 4 is a masterpiece of mobile workstation engineering. Packed with up to an Intel Xeon processor, NVIDIA RTX A5000 graphics, and a stunning 16-inch 4K display, it’s designed for architects, data scientists, and video editors who need desktop-level power on the go.

However, even the most powerful hardware is useless without a well-tuned foundation. That foundation is the BIOS (Basic Input/Output System)—officially referred to by Lenovo as the UEFI firmware.

The Lenovo P1 Gen 4 BIOS is the low-level software that initializes your hardware before the operating system boots. Getting it right can mean the difference between a stable, cool, high-performance workstation and a laptop plagued by thermal throttling, fan noise, or boot failures.

In this guide, we will cover everything you need to know: how to enter the BIOS, key settings to change, how to update the BIOS safely, downgrading, solving common POST errors, and advanced configuration for virtualization and security.

Method 1: Use the Emergency Reset Hole

• Locate the small hole on the bottom cover (near the middle screw). It’s labeled "EMERGENCY RESET."
• With the laptop off, insert a paperclip for 10 seconds.
• This drains residual charge and forces the BIOS to revert to safe defaults.

Restart Tab

• OS Optimized Defaults: Windows 10/11 users should leave this Enabled.
• Load Default Settings: Use this if you cannot remember what you changed and the system is unstable.

Method 3: From Inside Windows 10/11

1. Go to Settings > Update & Security > Recovery.
2. Under "Advanced startup," click Restart now.
3. After reboot, go to Troubleshoot > Advanced Options > UEFI Firmware Settings > Restart.

Part 9: Clearing the CMOS (Resetting BIOS to Factory)

If your P1 Gen 4 won’t POST (Black screen, fans spin) after a bad setting: