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
- CRU list
- Remove or replace a CRU
- Power adapter and power cord
- Power adapter bracket
- Vertical stand
- VESA mount bracket
- External optical drive box and external optical drive
- Dust shield
- External Wi-Fi antenna
- Computer cover
- Hard disk drive and hard disk drive bracket
- Internal speaker
- System fan
- Coin-cell battery
- Wi-Fi card and Wi-Fi card shield
- Bottom cover
- Memory module
- M.2 solid-state drive
- Chapter 8. Help and support
- Appendix A. Accessibility and ergonomic information
- Appendix B. Compliance information
- Appendix C. Notices and trademarks
Your computer has a special type of memory that maintains the date, time, and settings for built-in features,
such as parallel connector assignments (configurations). A coin-cell battery keeps this information active
when you turn off the computer.
The coin-cell battery normally requires no charging or maintenance throughout its life; however, no coin-cell
battery lasts forever. If the coin-cell battery fails, the date and time information is lost. An error message is
displayed when you turn on the computer.
To dispose of the coin-cell battery, refer to the “Lithium coin-cell battery notice” in the Safety and Warranty
Guide.
For access, remove the following parts in order, if any:
• “Computer cover” on page 43.
• “Internal speaker” on page 46.
• “System fan” on page 47.
Removal steps
Note: After installing a new coin-cell battery, reset the system date and time in the UEFI BIOS menu.
Wi-Fi card and Wi-Fi card shield
Prerequisite
Before you start, read Generic Safety and Compliance Notices, and print the following instructions.
For access, remove the following parts in order, if any:
• “Computer cover” on page 43.
• “Hard disk drive and hard disk drive bracket” on page 44.
Chapter 7. CRU replacement 49