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
Chapter 6. Troubleshooting, diagnostics, and recovery
This chapter provides solutions to resolve computer problems. Use the basic procedure as a starting point
for resolving computer problems.
Basic procedure for resolving computer problems
Prerequisite
Before you start, read Generic Safety and Compliance Notices, and print the following instructions.
1. Check that:
a. The cables for all connected devices are connected correctly and securely.
b. All components have been reassembled correctly.
c. All connected devices that require ac power are connected to properly grounded and working
electrical outlets.
d. All connected devices are enabled in UEFI BIOS.
2. Use an antivirus program (if any) to see if the computer has been infected by a virus. If the program
detects a virus, remove the virus.
3. See Chapter 6 “Troubleshooting, diagnostics, and recovery” on page 23 to resolve the problem you are
experiencing, run the diagnostic program, and recover your operating system.
4. If the problem persists, contact Lenovo. See Chapter 8 “Help and support” on page 57.
Troubleshooting
Use the troubleshooting information to find solutions to problems that have definite symptoms.
© Copyright Lenovo 2021 23