User's Manual
Table Of Contents
- About this documentation
- 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
- Set the system date and time
- Change the startup sequence
- Enable or disable the configuration change detection feature
- Enable or disable the automatic power-on feature
- Enable or disable the smart power-on feature
- 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. RAID
- Chapter 7. Troubleshooting, diagnostics, and recovery
- Chapter 8. CRU replacement
- What are CRUs
- Replace a CRU
- ac power adapter and power cord
- Rear Wi-Fi antenna
- Vertical stand
- VESA mount bracket
- External optical drive box and external optical drive
- Power adapter bracket
- Dust shield
- Computer cover
- Internal speaker
- System fan
- Coin-cell battery
- PCIe card and PCIe converter
- Wi-Fi card and Wi-Fi card shield
- Bottom cover
- M.2 solid-state drive
- Memory module
- Chapter 9. Help and support
- Appendix A. System memory speed
- Appendix B. Important safety information
- Appendix C. Accessibility and ergonomic information
- Appendix D. Supplemental information about the Ubuntu operating system
- Appendix E. Compliance and TCO Certified information
- Appendix F. Notices and trademarks
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.
Replacement procedure
1. Remove the computer cover. See “Computer cover” on page 55.
2. Remove the system fan. See “System fan” on page 57.
3. Disengage the latch.
4. Remove the coin-cell battery.
5. Install the coin-cell battery.
6. Secure the coin-cell battery with the latch.
Chapter 8. CRU replacement 59