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Install the front audio and USB assembly bracket into the chassis and align the screw hole in

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To replace the front audio and USB assembly, do the following: 1. Turn off the computer and disconnect all power cords from electrical outlets. 2. Remove the computer cover. See "Removing the computer cover" on page 30. 3. Remove the front bezel. See "Removing and reinstalling the front bezel" on page 30. 4. Locate the front audio and USB assembly. See "Locating components" on page 10. 5. Disconnect the front audio and USB assembly cables from the system board. See "Locating parts on the system board" on page 11. Note: Make sure you note the locations of the cables when you disconnect the cables from the system board. 6. Remove the screw that secures the front audio and USB assembly bracket to the chassis to remove the bracket from the chassis. Figure 31. Removing the screw that secures the front audio and USB assembly to the chassis 7. Remove the two screws that secure the front audio and USB assembly to its bracket and remove the failing front audio and USB assembly from the bracket. 8. Install a new front audio and USB assembly into the bracket and install the two screws to secure the front audio and USB assembly to the bracket. 9. Install the front audio and USB assembly bracket into the chassis and align the screw hole in the bracket with the corresponding hole in the chassis. 10. Install the screw to secure the bracket to the chassis. 11. Reconnect the front audio and USB assembly cables to the front audio connector and the front USB connector on the system board. See "Locating parts on the system board" on page 11. What to do next: • To work with another piece of hardware, go to the appropriate section. • To complete the installation or replacement, go to "Completing the parts replacement" on page 48. Chapter 5. Installing or replacing hardware 47

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	18
Antivirus software	18
Locations	18
Locating connectors, controls, and indicators on the front of your computer	19
Locating connectors and parts on the rear of your computer	20
Locating components	22
Locating parts on the system board	23
Locating internal drives	24
Machine type and model label	25
Chapter 2. Using your computer	27
Frequently asked questions	27
Using the keyboard	27
Using Windows shortcut keys	27
Using a fingerprint reader	28
Using the wheel mouse	28
Adjusting audio	28
About your computer audio	28
Setting the volume from the desktop	29
Setting the volume from Control Panel	29
Using CDs and DVDs	29
Handling and storing CD and DVD media	30
Playing a CD or DVD	30
Recording a CD or DVD	30
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	34
Chapter 4. Security	35
Security features	35
Locking the computer cover	36
Attaching a cable lock	37
Attaching an integrated cable lock	38
Using passwords	38
BIOS passwords	38
Windows passwords	39
Configuring the fingerprint reader	39
Using and understanding firewalls	39
Protecting data against viruses	39
Chapter 5. Installing or replacing hardware	41
Handling static-sensitive devices	41
Installing or replacing hardware	41
Installing external options	41
Removing the computer cover	42
Removing and reinstalling the front bezel	42
Installing or replacing a PCI card	44
Installing or replacing a memory module	46
Installing or replacing the optical drive	48
Replacing the battery	50
Replacing the heat sink and fan assembly	51
Replacing the power supply assembly	53
Replacing the microprocessor	54
Replacing the primary hard disk drive	57
Replacing the front audio and USB assembly	58
Replacing the USB keyboard or mouse	60
Completing the parts replacement	60
Chapter 6. Recovery information	63
Creating and using recovery media	63
Creating recovery media	63
Using recovery media	64
Performing backup and recovery operations	64
Performing a backup operation	64
Performing a recovery operation	65
Using the Rescue and Recovery workspace	65
Creating and using a rescue medium	66
Creating a rescue medium	66
Using a rescue medium	66
Reinstalling preinstalled applications and device drivers	67
Reinstalling software programs	68
Reinstalling device drivers	68
Solving recovery problems	68
Chapter 7. Using the Setup Utility program	71
Starting the Setup Utility program	71
Viewing and changing settings	71
Using passwords	71
Password considerations	71
Power-On Password	72
Administrator Password	72
Setting, changing, and deleting a password	72
Erasing lost or forgotten passwords (clearing CMOS)	72
Enabling or disabling a device	73
Selecting a startup device	73
Selecting a temporary startup device	73
Selecting or changing the startup device sequence	73
Exiting the Setup Utility program	74
Chapter 8. Updating system programs	75
Using system programs	75
Updating (flashing) the BIOS from a disc	75
Updating (flashing) the BIOS from your operating system	76
Recovering from a POST/BIOS update failure	76
Chapter 9. Preventing problems	79
Keeping your computer current	79
Getting the latest device drivers for your computer	79
Updating your operating system	79
Using System Update	79
Cleaning and maintenance	80
Basics	80
Cleaning your computer	81
Good maintenance practices	82
Moving your computer	82
Chapter 10. Troubleshooting and diagnostics	83
Basic troubleshooting	83
Troubleshooting procedure	84
Troubleshooting	84
Audio problems	85
CD problems	86
DVD problems	87
Intermittent problems	89
Keyboard, mouse, or pointing device problems	89
Monitor problems	90
Networking problems	92
Option problems	95
Performance and lockup problems	96
Printer problems	97
Serial port problems	98
Software problems	98
USB problems	99
Diagnostic programs	99
Lenovo Solution Center	100
Lenovo ThinkVantage Toolbox	100
PC-Doctor for DOS	100
Chapter 11. Getting information, help, and service	103
Information resources	103
Lenovo ThinkVantage Tools	103
Lenovo Welcome	103
Help and Support	103
Safety and Warranty	103
Lenovo Web site (http://www.lenovo.com)	103
Lenovo Support Web site	104
Help and service	104
Using the documentation and diagnostic programs	104
Calling for service	104
Using other services	105
Purchasing additional services	105
Appendix A. Notices	107
Trademarks	108
Appendix B. Regulatory information	109
Export classification notice	109
Television output notice	109
Electronic emissions notices	109
Federal Communications Commission Declaration of Conformity	109
Additional regulatory information	111
Appendix C. WEEE and recycling statements	113
Important information for the European Directive 2002/96/EC	113
Recycling information	113
Recycling information for Brazil	114
Battery recycling information for Taiwan	114
Battery recycling information for the European Union	115

Match case Limit results 1 per page

To replace the front audio and USB assembly, do the following:

1. Turn off the computer and disconnect all power cords from electrical outlets.

2. Remove the computer cover. See “Removing the computer cover” on page 30.

3. Remove the front bezel. See “Removing and reinstalling the front bezel” on page 30.

4. Locate the front audio and USB assembly. See “Locating components” on page 10.

5. Disconnect the front audio and USB assembly cables from the system board. See “Locating parts on

the system board” on page 11.

Note:

Make sure you note the locations of the cables when you disconnect the cables from the system

board.

6. Remove the screw that secures the front audio and USB assembly bracket to the chassis to remove

the bracket from the chassis.

Figure 31. Removing the screw that secures the front audio and USB assembly to the chassis

7. Remove the two screws that secure the front audio and USB assembly to its bracket and remove the

failing front audio and USB assembly from the bracket.

8. Install a new front audio and USB assembly into the bracket and install the two screws to secure the

front audio and USB assembly to the bracket.

9. Install the front audio and USB assembly bracket into the chassis and align the screw hole in the

bracket with the corresponding hole in the chassis.

10. Install the screw to secure the bracket to the chassis.

11. Reconnect the front audio and USB assembly cables to the front audio connector and the front USB

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

What to do next:

•

To work with another piece of hardware, go to the appropriate section.

•

To complete the installation or replacement, go to “Completing the parts replacement” on page 48.

Chapter 5

Installing or replacing hardware