User Manual
Table Of Contents
- Discover your Lenovo computer
- Chapter 1. Meet your computer
- Chapter 2. Get started with your computer
- Chapter 3. Explore your computer
- Chapter 4. Secure your computer and information
- Chapter 5. UEFI BIOS
- What is UEFI BIOS
- Enter the BIOS menu
- Navigate in the BIOS interface
- Change the display language of UEFI BIOS
- Change the display mode of UEFI BIOS (for selected models)
- Set the system date and time
- Change the boot priority order
- Enable or disable the configuration change detection feature
- Enable or disable the automatic power-on feature
- Enable or disable the smart power-on feature (for selected models)
- Enable or disable the ErP LPS compliance mode
- Change the ITS performance mode
- Change BIOS settings before installing a new operating system
- Update UEFI BIOS
- Recover from a BIOS update failure
- Clear CMOS
- Chapter 6. Troubleshooting, diagnostics, and recovery
- Chapter 7. CRU replacement
- Chapter 8. Help and support
- Appendix A. Accessibility and ergonomic information
- Appendix B. Compliance information
- Appendix C. Notices and trademarks
8. Reinstall all the parts that have been removed. Then, reconnect the power cords for the computer and
the monitor to electrical outlets.
9. Turn on the computer and the monitor. When the logo screen is displayed, press F1 or Fn+F1.
10. To prevent data loss, ensure that BIOS settings are restored to an earlier point. For BIOS
configurations, see Chapter 5 “UEFI BIOS” on page 25.
• M90a Gen 2:
1. Remove all media from the drives and turn off all connected devices.
2. Insert the BIOS update disc into the optical drive, and then turn off the computer.
3. Disconnect all power cords from electrical outlets. Then, remove any parts that impede access to the
Clear CMOS /Recovery jumper.
4. Move the jumper from the standard position to the maintenance position.
5. Reconnect the power cords for the computer and the monitor to electrical outlets.
6. Turn on the computer and the monitor. When the computer beeps, the recovery process begins.
7. After the recovery process is completed, the computer will be turned off automatically.
Note: Depending on the computer model, the recovery process will take two to three minutes.
8. Disconnect all power cords from electrical outlets.
9. Move the jumper back to the standard position.
10. Reinstall all the parts that have been removed. Then, reconnect the power cords for the computer and
the monitor to electrical outlets.
11. Turn on the computer and the monitor. When the logo screen is displayed, press F1 or Fn+F1.
12. To prevent data loss, ensure that BIOS settings are restored to an earlier point. For BIOS
configurations, see Chapter 5 “UEFI BIOS” on page 25.
Clear CMOS
• M70a Gen 2:
1. Remove all media from the drives and turn off all connected devices and the computer.
2. Disconnect all power cords from electrical outlets. Then, remove any parts that impede access to the
CLR1 button.
3. Reconnect the power cords for the computer and the monitor to electrical outlets.
4. Press and hold the CLR1 button, and then turn on the computer and the monitor.
5. Release the CLR1 button when the computer beeps. Wait for approximately 10 seconds.
6. Turn off the computer by holding the power button for approximately four seconds.
7. Disconnect all power cords from electrical outlets.
8. Reinstall all the parts that have been removed. Then, reconnect the power cords for the computer and
the monitor to electrical outlets.
9. Turn on the computer and the monitor. When the logo screen is displayed, press F1 or Fn+F1.
10. To prevent data loss, ensure that BIOS settings are restored to an earlier point. For BIOS
configurations, see Chapter 5 “UEFI BIOS” on page 25.
• M90a Gen 2:
1. Remove all media from the drives and turn off all connected devices and the computer.
2. Disconnect all power cords from electrical outlets. Then, remove any parts that impede access to the
Clear CMOS /Recovery jumper.
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M70a Gen 2 and M90a Gen 2 User Guide