User's Guide
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 removable 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
- Chapter 1. Product overview
- Chapter 2. Using your computer
- Registering your computer
- Frequently asked questions
- Getting help about the Windows operating system
- Using the special keys
- Using the ThinkPad pointing device
- Power management
- Cabled Ethernet connections
- Using the wireless-LAN connection
- Wireless connections
- Using the NVIDIA Optimus Graphics feature
- Using audio features
- Using the camera
- Using the optical drive
- Using a media card
- Using an external display
- Traveling with 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
- Troubleshooting
- Diagnosing problems with Lenovo Companion
- Computer stops responding
- Spills on the keyboard
- Error messages
- Beep errors
- Memory module problems
- Ethernet problems
- Wireless-LAN problem
- Bluetooth problem
- ThinkPad pointing device problems
- Keyboard problems
- Computer screen problems
- External monitor problems
- Audio problems
- Fingerprint reader problems
- Battery problems
- ac power adapter problem
- Power problems
- Power button problem
- Boot problem
- Sleep and hibernation problems
- Hard disk drive problems
- Solid-state drive problem
- Software problem
- USB problem
- Chapter 8. Recovery information
- Chapter 9. Replacing devices
- Chapter 10. Getting support
- Appendix A. 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 B. WEEE and recycling statements
- Appendix C. Restriction of Hazardous Substances (RoHS) Directive
- Appendix D. ENERGY STAR model information
- Appendix E. Notices
- Appendix F. Trademarks
5.Ifmorethantwomonitortypesaredisplayed,selectGenericPnPMonitororGenericNon-PnP
Monitor.
6.ClickProperties.Ifyouarepromptedforanadministratorpasswordorconfirmation,typethe
passwordorprovideconfirmation.
7.ClicktheDrivertab.
8.ClickUpdateDriver.
9.ClickBrowsemycomputerfordriversoftware,andthenclickLetmepickfromalistofdevice
driversonmycomputer.
10.CleartheShowcompatiblehardwarecheckbox.
11.Selectthecorrectmanufacturerandmodelfortheexternalmonitor.Ifyoucannotfindyourmonitor
onthelist,stoptheinstallationofthisdriverandusethedrivershippedwithyourmonitor.
12.Afterupdatingthedriver,clickClose.
•Problem:Incorrectcharactersaredisplayedonthescreen.
Solution:Ensurethatyouinstalltheoperatingsystemandprogramcorrectly.Iftheproblempersists,
havethecomputerserviced.
•Problem:ItrytoturnoffmycomputerbutthescreenstaysonandIcannotcompletelyturnoffmy
computer.
Solution:Pressandholdthepowerbuttonforfoursecondsormoretoturnoffthecomputer.
•Problem:Missing,discolored,orbrightdotsappearonthescreeneverytimeIturnonmycomputer.
Solution:ThisisanintrinsiccharacteristicoftheTFTtechnology.Yourcomputerdisplaycontains
multiplethin-filmtransistors(TFTs).Onlyaverysmallnumberofmissing,discolored,orbrightdots
onthescreenmightexistallthetime.
Externalmonitorproblems
•Problem:Theexternalmonitorisblank.
Solution:Tobringuptheimage,pressthedisplay-modeswitchingkeyandselectthemonitoryou
want.Iftheproblempersists,dothefollowing:
1.Connecttheexternalmonitortoanothercomputertoensurethatitworks.
2.Reconnecttheexternalmonitortoyourcomputer.
3.Seethemanualshippedwiththeexternalmonitortochecktheresolutionsandrefreshratesthat
aresupported.
–Iftheexternalmonitorsupportsthesameresolutionasthecomputerdisplayorahigherresolution,
viewoutputontheexternalmonitororonboththeexternalmonitorandthecomputerdisplay.
–Iftheexternalmonitorsupportsalowerresolutionthanthecomputerdisplay,viewoutputonthe
externalmonitoronly.(Ifyouviewoutputonboththecomputerdisplayandtheexternalmonitor,
theexternalmonitorscreenwillbeblankordistorted.)
•Problem:Icannotsetahigherresolutionthanthepresentoneonmyexternalmonitor.
Solution:Ensurethatthemonitorinformationiscorrect.Ifnecessary,updatethemonitordriver.
•Problem:Thescreenisunreadableordistorted.
Solution:Ensurethat:
–Themonitorinformationiscorrectandtheappropriatemonitortypeisselected.Ifnecessary,update
themonitordriver.
–Ensurethatanappropriaterefreshrateisselectedbydoingthefollowing:
Chapter7.Troubleshootingcomputerproblems69