User's Manual
Table Of Contents
- Important safety information
- Read this first
- Important information about using your computer
- Conditions that require immediate action
- Service and upgrades
- Power cords and power adapters
- Extension cords and related devices
- Plugs and outlets
- Power supply statement
- External devices
- General battery notice
- Notice for built-in rechargeable battery
- Notice for non-rechargeable coin-cell battery
- Heat and product ventilation
- Electrical current safety information
- Laser safety information
- Liquid crystal display (LCD) notice
- Using headphones or earphones
- Plastic bag notice
- Glass parts notice
- Choking hazard notice
- Chapter 1. Product overview
- Chapter 2. Using your computer
- Chapter 3. Enhancing your computer
- Chapter 4. Accessibility, ergonomic, and maintenance information
- Chapter 5. Security
- Chapter 6. Advanced configuration
- Chapter 7. Troubleshooting computer problems
- General tips for preventing problems
- Diagnosing problems with Lenovo Companion
- Troubleshooting
- Computer stops responding
- Spills on the keyboard
- Error messages
- Beep errors
- Ethernet problems
- Wireless-LAN problem
- A wireless-WAN problem
- Bluetooth problem
- ThinkPad pointing device problems
- Keyboard problems
- Computer screen problems
- External monitor problems
- Audio problems
- Fingerprint reader problems
- Battery problems
- Power adapter problem
- Power problems
- Power button problem
- Boot problems
- Sleep and hibernation problems
- ThinkPad Pen Pro problem
- Software problem
- USB problem
- Chapter 8. Recovery information
- Chapter 9. Replacing devices
- Chapter 10. Getting support
- Appendix A. Supplemental information about the Ubuntu operating system
- Appendix B. Regulatory information
- Certification-related information
- Wireless-related information
- Export classification notice
- Electronic emission notices
- Federal Communications Commission Declaration of Conformity
- Industry Canada Class B emission compliance statement
- European Union - Compliance to the Electromagnetic Compatibility (EMC) Directive or Radio Equipment Directive
- German Class B compliance statement
- Korea Class B compliance statement
- Japan VCCI Class B compliance statement
- Japan compliance statement for products which connect to the power mains with rated current less than or equal to 20 A per phase
- Japan notice for ac power cord
- Lenovo product service information for Taiwan
- Eurasian compliance mark
- Brazil audio notice
- Appendix C. WEEE and recycling statements
- Appendix D. Restriction of Hazardous Substances (RoHS) Directive
- Appendix E. ENERGY STAR model information
- Appendix F. Notices
- Appendix G. Trademarks
Descriptions:Selectthedisplaydevicethatyouwanttoactivateatboottime.Thisselectioniseffective
forboottime,passwordprompt,andThinkPadSetup.YoucanattachanexternaldisplaytotheUSB-C
connectororHDMIconnectoronyourcomputer.Ifmultipledisplaysareattached,thefirstrecognized
onewillbeactivatedatboottime.
•TotalGraphicsMemory
Values:256MB,512MB
Descriptions:AllocatethetotalmemorywhichIntelinternalgraphicsshares.
Note:Ifyouselect512MB,themaximumusablememorymightbereducedonthe32–bitoperating
system.
•BootTimeExtension
Values:Disabled,1second,2seconds,3seconds,5seconds,10seconds,
Descriptions:Duringthebootprocess,thecomputermightnotdetecttheexternalmonitorsthatneed
moretimetogetready.Selecthowlongyouwanttoextendthebootprocess.
Power
•IntelSpeedStep
®
technology
Values:Disabled,Enabled
Descriptions:SelectthemodeofIntelSpeedSteptechnologyatruntime.
–ModeforAC
Values:MaximumPerformance,BatteryOptimized
Descriptions:MaximumPerformance:Alwayshighestspeed
–ModeforBattery
Values:MaximumPerformance,BatteryOptimized
Descriptions:BatteryOptimized:Alwayslowestspeed
•AdaptiveThermalManagement
Values:MaximizePerformance,Balanced
Descriptions:Selectathermalmanagementschemetouse.Theschemeaffectsfansound,temperature,
andperformance.
•CPUPowerManagement
Values:Disabled,Enabled
Descriptions:Enableordisablethepower-savingfeaturethatstopsthemicroprocessorclock
automaticallywhentherearenosystemactivities.Normally,itisnotnecessarytochangethesetting.
•PowerOnwithACAttach
Values:Disabled,Enabled
Descriptions:Enableordisableafeaturethatturnsonthecomputerwhentheacpoweradapteris
attached.
•DisableBuilt-inBattery
Values:Yes,No
Descriptions:Temporarilydisablethebuilt-inbatteryforservicingthesystem.Afterselectingthisitem,
thesystemwillbeautomaticallypoweredoff,thenreadytobeserviced.
Note:Thebuilt-inbatterywillbeautomaticallyenabledwhentheacpoweradapterisreconnected.
Chapter6.Advancedconfiguration63