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Lenovo ThinkCentre M82 (English) User Guide - Page 72

system board. The four screws cannot be removed from the heat sink and fan assembly.

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3. Disconnect the heat sink and fan assembly cable from the microprocessor fan connector on the system board. See "Locating parts on the system board" on page 11. 4. Follow this sequence to remove the four screws that secure the heat sink and fan assembly to the system board: a. Partially remove screw 1 , then fully remove screw 2 , and then fully remove screw 1 . b. Partially remove screw 3 , then fully remove screw 4 , and then fully remove screw 3 . Note: Carefully remove the four screws from the system board to avoid any possible damage to the system board. The four screws cannot be removed from the heat sink and fan assembly. Figure 45. Screws that secure the heat sink and fan assembly 5. Lift the heat sink and fan assembly with the fan duct off the system board. Notes: a. You might have to gently twist the heat sink and fan assembly to free it from the microprocessor. b. When handling the heat sink and fan assembly, do not touch the thermal grease on the bottom of the heat sink and fan assembly. 60 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	16
Software overview	17
Software provided by Lenovo	17
Adobe Reader	19
Antivirus software	19
Locations	19
Locating connectors, controls, and indicators on the front of yo	20
Locating connectors on the rear of your computer	21
Locating components	23
Locating parts on the system board	23
Locating internal drives	26
Machine type and model label	27
Chapter 2. Using your computer	29
Frequently asked questions	29
Using the keyboard	29
Using Windows shortcut keys	29
Using the blue ThinkVantage button	30
Using a fingerprint reader	30
Using the wheel mouse	30
Adjusting audio	30
About your computer audio	31
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
Registering your computer	37
Moving your computer to another country or region	37
Voltage-selection switch	37
Replacement power cords	38
Chapter 4. Security	39
Security features	39
Attaching an integrated cable lock	40
Using passwords	40
BIOS passwords	40
Windows passwords	41
Configuring the fingerprint reader	41
Using and understanding firewalls	41
Protecting data against viruses	41
Chapter 5. Installing or replacing hardware	43
Handling static-sensitive devices	43
Installing or replacing hardware	43
Installing external options	43
Opening the computer cover	44
Removing and reinstalling the front bezel	44
Accessing the system board components and drives	46
Installing or replacing a memory module	47
Installing or replacing a PCI card	49
Installing or replacing the card reader	51
Installing or replacing the mSATA solid state drive	56
Replacing the battery	63
Installing the solid state drive	64
Replacing the hard disk drive	66
Replacing the optical drive	68
Replacing the heat sink and fan assembly	71
Replacing the power supply assembly	74
Replacing the microprocessor	79
Replacing the cover presence switch	82
Replacing the internal speaker	84
Replacing the front audio and USB assembly	86
Replacing the system fan assembly	88
Replacing the WiFi units	89
Installing or removing the rear WiFi antenna	94
Installing or removing the front WiFi antenna	96
Replacing the keyboard or mouse	99
Completing the parts replacement	99
Chapter 6. Recovery information	101
Creating and using recovery media	101
Creating recovery media	101
Using recovery media	102
Performing backup and recovery operations	102
Performing a backup operation	102
Performing a recovery operation	103
Using the Rescue and Recovery workspace	103
Creating and using a rescue medium	104
Creating a rescue medium	104
Using a rescue medium	104
Reinstalling preinstalled applications and device drivers	105
Reinstalling software programs	106
Reinstalling device drivers	106
Solving recovery problems	106
Chapter 7. Using the Setup Utility program	109
Starting the Setup Utility program	109
Viewing and changing settings	109
Using passwords	109
Password considerations	110
Power-On Password	110
Administrator Password	110
Hard Disk Password	110
Setting, changing, and deleting a password	110
Erasing lost or forgotten passwords (clearing CMOS)	111
Enabling or disabling a device	111
Selecting a startup device	112
Selecting a temporary startup device	112
Selecting or changing the startup device sequence	112
Enabling ErP compliance mode	112
ICE performance mode	113
ICE thermal alert	113
Exiting the Setup Utility program	114
Chapter 8. Updating system programs	115
Using system programs	115
Updating (flashing) the BIOS from a disc	115
Updating (flashing) the BIOS from your operating system	116
Recovering from a POST/BIOS update failure	116
Chapter 9. Preventing problems	117
Keeping your computer current	117
Getting the latest device drivers for your computer	117
Updating your operating system	117
Using System Update	118
Cleaning and maintenance	118
Basics	118
Cleaning your computer	119
Good maintenance practices	120
Moving your computer	120
Chapter 10. Troubleshooting and diagnostics	121
Basic troubleshooting	121
Troubleshooting procedure	122
Troubleshooting	122
Audio problems	123
CD problems	124
DVD problems	125
Intermittent problems	127
Keyboard, mouse, or pointing device problems	127
Monitor problems	128
Networking problems	130
Option problems	133
Performance and lockup problems	134
Printer problems	135
Serial port problems	135
Software problems	136
USB problems	137
Lenovo Solution Center	137
Chapter 11. Getting information, help, and service	139
Information resources	139
Lenovo ThinkVantage Tools	139
Lenovo Welcome	139
Help and Support	139
Safety and Warranty	139
Lenovo Web site (http://www.lenovo.com)	139
Lenovo Support Web site	139
Help and service	140
Using the documentation and diagnostic program	140
Calling for service	140
Using other services	141
Purchasing additional services	141
Appendix A. Notices	143
Trademarks	144
Appendix B. Regulatory information	145
Export classification notice	145
Electronic emissions notices	145
Federal Communications Commission Declaration of Conformity	145
Additional regulatory information	147
Appendix C. WEEE and recycling information	149
Important WEEE Information	149
Recycling information	149
Recycling information for Brazil	150
Battery recycling information for Taiwan	150
Battery recycling information for the European Union	151
Appendix D. Restriction of Hazardous Substances Directive (RoHS)	153
China RoHS	153
Turkish RoHS	153
Ukraine RoHS	153
India RoHS	154
Appendix E. Ek Bilgiler	155
Appendix F. Servis istasyonlari	157

Match case Limit results 1 per page

3. Disconnect the heat sink and fan assembly cable from the microprocessor fan connector on the system

board. See “Locating parts on the system board” on page 11.

4. Follow this sequence to remove the four screws that secure the heat sink and fan assembly to the

system board:

Partially remove screw

, then fully remove screw

, and then fully remove screw

b. Partially remove screw

, then fully remove screw

, and then fully remove screw

Note:

Carefully remove the four screws from the system board to avoid any possible damage to the

system board. The four screws cannot be removed from the heat sink and fan assembly.

Figure 45. Screws that secure the heat sink and fan assembly

5. Lift the heat sink and fan assembly with the fan duct off the system board.

Notes:

You might have to gently twist the heat sink and fan assembly to free it from the microprocessor.

b. When handling the heat sink and fan assembly, do not touch the thermal grease on the bottom

of the heat sink and fan assembly.

ThinkCentre User Guide