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Lenovo ThinkCentre M81 (English) User Guide - Page 24

Locating components, computer. To remove the computer cover

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Locating components Figure 3 "Component locations" on page 12 shows the locations of the various components in your computer. To remove the computer cover, see "Removing the computer cover" on page 34. Figure 3. Component locations 1 Heat sink and fan assembly 2 Memory modules 3 Optical drive 4 Front audio and USB assembly 5 Internal speaker (available on some models) 6 PCI card (installed in some models) 7 Cover presence switch (also called intrusion switch) 8 Rear fan assembly 9 Power supply assembly 10 Microprocessor 12 ThinkCentre 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	17
Software overview	17
Software provided by Lenovo	17
Adobe Reader	20
Antivirus software	20
Locations	20
Locating connectors, controls, and indicators on the front of yo	21
Locating connectors on the rear of your computer	22
Locating components	24
Locating parts on the system board	25
Locating internal drives	26
Machine type and model label	26
Chapter 2. Using your computer	29
Frequently asked questions	29
Using the keyboard	29
Using Windows shortcut keys	29
Using a fingerprint reader	30
Using the wheel mouse	30
Adjusting audio	30
About your computer audio	30
Setting the volume from the desktop	31
Setting the volume from Control Panel	31
Using CDs and DVDs	31
Handling and storing CD and DVD media	32
Playing a CD or DVD	32
Recording a CD or DVD	32
Chapter 3. You and your computer	35
Accessibility and comfort	35
Arranging your workspace	35
Comfort	35
Glare and lighting	36
Air circulation	36
Electrical outlets and cable lengths	36
Register your computer with Lenovo	37
Moving your computer to another country or region	37
Voltage-selection switch	37
Replacement power cords	37
Chapter 4. Security	39
Security features	39
Locking the computer cover	40
Attaching an integrated cable lock	41
Using passwords	41
BIOS passwords	41
Windows passwords	42
Setting up the integrated Security Chip	42
Setting the Security Chip	42
Using and understanding firewalls	43
Protecting data against viruses	43
Chapter 5. Installing or replacing hardware	45
Handling static-sensitive devices	45
Installing or replacing hardware	45
Installing external options	45
Removing the computer cover	46
Removing and reinstalling the front bezel	47
Installing or replacing a PCI card	47
Installing or replacing a memory module	50
Installing or replacing the optical drive	52
Installing or replacing the card reader	54
Replacing the battery	58
Replacing the power supply assembly	59
Replacing the heat sink and fan assembly	61
Replacing the microprocessor	63
Installing the solid state drive	66
Replacing the primary hard disk drive	67
Replacing the secondary hard disk drive	69
Replacing the front fan assembly	71
Replacing the rear fan assembly	73
Replacing the front audio and USB assembly	75
Replacing the internal speaker	76
Replacing the keyboard or mouse	78
Completing the parts replacement	79
Chapter 6. Recovery information	81
Creating and using recovery media	81
Creating recovery media	81
Using recovery media	82
Performing backup and recovery operations	82
Performing a backup operation	82
Performing a recovery operation	83
Using the Rescue and Recovery workspace	83
Creating and using a rescue medium	84
Creating a rescue medium	84
Using a rescue medium	85
Reinstalling preinstalled applications and device drivers	85
Reinstalling software programs	86
Reinstalling device drivers	87
Solving recovery problems	87
Chapter 7. Using the Setup Utility program	89
Starting the Setup Utility program	89
Viewing and changing settings	89
Using passwords	89
Password considerations	90
Power-On Password	90
Administrator Password	90
Hard Disk Password	90
Setting, changing, and deleting a password	90
Erasing lost or forgotten passwords (clearing CMOS)	91
Enabling or disabling a device	91
Selecting a startup device	92
Selecting a temporary startup device	92
Selecting or changing the startup device sequence	92
Enabling ErP compliance mode	92
Smart performance choices	93
Exiting from the Setup Utility program	93
Chapter 8. Updating system programs	95
Using system programs	95
Updating (flashing) the BIOS from a disc	95
Updating (flashing) the BIOS from your operating system	96
Recovering from a POST/BIOS update failure	96
Chapter 9. Preventing problems	97
Keeping your computer current	97
Getting the latest device drivers for your computer	97
Updating your operating system	97
Using System Update	98
Cleaning and maintenance	98
Basics	98
Cleaning your computer	99
Good maintenance practices	100
Moving your computer	100
Chapter 10. Troubleshooting and diagnostics	103
Basic troubleshooting	103
Troubleshooting procedure	104
Troubleshooting	104
Audio problems	105
CD problems	106
DVD problems	107
Intermittent problems	109
Keyboard, mouse, or pointing device problems	109
Monitor problems	111
Networking problems	112
Option problems	115
Performance and lockup problems	116
Printer problems	118
Serial port problems	119
Software problems	119
USB problems	120
Diagnostic programs	120
Lenovo Solution Center	121
Lenovo ThinkVantage Toolbox	121
PC-Doctor for DOS	121
Chapter 11. Getting information, help, and service	123
Information resources	123
Lenovo ThinkVantage Tools	123
ThinkVantage Productivity Center	123
Lenovo Welcome	123
Help and Support	123
Safety and Warranty	124
Lenovo Web site	124
Lenovo Support Web site	124
Help and service	124
Using the documentation and diagnostic programs	124
Calling for service	125
Using other services	125
Purchasing additional services	126
Appendix A. Notices	127
Trademarks	128
Appendix B. Regulatory information	129
Export classification notice	129
Television output notice	129
Electronic emissions notices	129
Federal Communications Commission Declaration of Conformity	129
Additional regulatory information	131
Appendix C. WEEE and recycling information	133
Important WEEE Information	133
Recycling information	133
Recycling information for Brazil	134
Battery recycling information for Taiwan	134
Battery recycling information for the European Union	135
Appendix D. Restriction of Hazardous Substances Directive (RoHS)	137
China RoHS	137
Turkish RoHS	137
Ukraine RoHS	137
India RoHS	138