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Lenovo ThinkCentre Edge 91z (English) User Guide - Page 42

Reinstall the system stand hinge cover. See Removing and reinstalling the system stand hinge cover

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3. Remove the two screws that secure the system stand, and then lift the system stand up and remove it from the computer. Figure 9. Removing the system stand 4. To reinstall the system stand, align the two screw holes with the corresponding holes in the chassis, and then install the two screws to secure the system stand to the computer. Figure 10. Reinstalling the system stand 5. Reinstall the system stand hinge cover. See "Removing and reinstalling the system stand hinge cover" on page 27. 30 ThinkCentre Edge User Guide

Section	Page
Important safety information	7
Service and upgrades	7
Static electricity prevention	7
Power cords and power adapters	8
Extension cords and related devices	8
Plugs and outlets	9
External devices	9
Heat and product ventilation	9
Operating environment	10
Modem safety information	10
Laser compliance statement	11
Power supply statement	11
Cleaning and maintenance	11
Chapter 1. Product overview	13
Features	13
Specifications	16
Software overview	16
Software provided by Lenovo	16
Adobe Reader	19
Antivirus software	19
Locations	19
Locating connectors, controls, and indicators on the front of yo	19
Locating connectors on the rear of your computer	21
Adjusting the computer stand	22
Machine type and model label	22
Chapter 2. Using your computer	25
Frequently asked questions	25
Using the keyboard	25
Using Windows shortcut keys	25
Using a fingerprint reader	26
Using the wheel mouse	26
Adjusting audio	26
About your computer audio	26
Setting the volume from the desktop	26
Setting the volume from Control Panel	27
Using CDs and DVDs	27
Handling and storing CD and DVD media	27
Playing a CD or DVD	28
Recording a CD or DVD	28
Using the single-touch and multi-touch feature	28
Chapter 3. You and your computer	31
Accessibility and comfort	31
Arranging your workspace	31
Comfort	31
Glare and lighting	32
Air circulation	32
Electrical outlets and cable lengths	32
Register your computer with Lenovo	33
Moving your computer to another country or region	33
Voltage-selection switch	33
Replacement power cords	33
Chapter 4. Security	35
Security features	35
Attaching an integrated cable lock	36
Using passwords	36
BIOS passwords	36
Windows passwords	37
Using and understanding firewalls	37
Protecting data against viruses	37
Chapter 5. Installing or replacing hardware	39
Installing or replacing hardware	39
Installing external options	39
Removing and reinstalling the system stand hinge cover	39
Removing and reinstalling the system stand	41
Removing and reinstalling the foot stand	43
Replacing the USB keyboard or mouse	45
Replacing the wireless keyboard	45
Replacing the wireless mouse	46
Obtaining device drivers	48
Chapter 6. Recovery information	49
Creating and using recovery media	49
Creating recovery media	49
Using recovery media	50
Performing backup and recovery operations	50
Performing a backup operation	50
Performing a recovery operation	51
Using the Rescue and Recovery workspace	51
Creating and using a rescue medium	52
Creating a rescue medium	52
Using a rescue medium	52
Reinstalling preinstalled applications and device drivers	53
Reinstalling software programs	54
Reinstalling device drivers	54
Solving recovery problems	54
Chapter 7. Using the Setup Utility program	57
Starting the Setup Utility program	57
Viewing and changing settings	57
Using passwords	57
Password considerations	57
Power-On Password	58
Administrator Password	58
Setting, changing, and deleting a password	58
Enabling or disabling a device	58
Selecting a startup device	59
Selecting a temporary startup device	59
Selecting or changing the startup device sequence	59
Exiting the Setup Utility program	59
Chapter 8. Updating system programs	61
Using system programs	61
Updating (flashing) the BIOS from a disc	61
Updating (flashing) the BIOS from your operating system	62
Chapter 9. Preventing problems	63
Keeping your computer current	63
Getting the latest device drivers for your computer	63
Updating your operating system	63
Using System Update	63
Cleaning and maintenance	64
Basics	64
Cleaning your computer	65
Good maintenance practices	66
Moving your computer	66
Chapter 10. Troubleshooting and diagnostics	67
Basic troubleshooting	67
Troubleshooting procedure	68
Troubleshooting	69
Audio problems	69
CD problems	70
DVD problems	71
Intermittent problems	73
Keyboard, mouse, or pointing device problems	73
Monitor problems	75
Networking problems	76
Option problems	79
Performance and lockup problems	80
Printer problems	81
Serial port problems	82
Software problems	82
USB problems	83
Diagnostic programs	83
Lenovo Solution Center	84
Lenovo ThinkVantage Toolbox	84
PC-Doctor for DOS	84
Chapter 11. Getting information, help, and service	87
Information resources	87
Lenovo ThinkVantage Tools	87
Lenovo Welcome	87
Help and Support	87
Safety and Warranty	87
Lenovo Web site (http://www.lenovo.com)	87
Lenovo Support Web site	87
Help and service	88
Using the documentation and diagnostic programs	88
Calling for service	88
Using other services	89
Purchasing additional services	89
Appendix A. Notices	91
Trademarks	92
Appendix B. Regulatory information	93
Export classification notice	93
Television output notice	93
Electronic emissions notices	93
Federal Communications Commission Declaration of Conformity	93
Additional regulatory information	95
Appendix C. WEEE and recycling information	97
Important WEEE Information	97
Recycling information	97
Recycling information for Brazil	98
Battery recycling information for Taiwan	98
Battery recycling information for the European Union	99
Appendix D. Restriction of Hazardous Substances Directive (RoHS)	101
China RoHS	101
Turkish RoHS	101
Ukraine RoHS	101
India RoHS	102