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Lenovo ThinkCentre M55 User Manual - Page 22

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7. If you have powered speakers with an ac adapter, use the following instructions. a. Connect the cable that runs between the speakers, if necessary. On some speakers, this cable is permanently attached. b. Connect the ac adapter cable to the speaker. c. Connect the speakers to the computer. d. Connect the ac adapter to the ac power source. 8. If you have unpowered speakers with no ac adapter, use the following instructions. a. Connect the cable that runs between the speakers, if necessary. On some speakers, this cable is permanently attached. b. Connect the speakers to the computer. 9. Connect any additional devices that you have. Your computer might not have all connectors that are shown. 6 User Guide 1394 1394

Section	Page
Contents	5
Important safety information	7
Conditions that require immediate action	7
General safety guidelines	8
Service	8
Power cords and power adapters	9
Extension cords and related devices	10
Plugs and outlets	10
Batteries	10
Heat and product ventilation	11
CD and DVD drive safety	11
Additional safety information	12
Lithium battery notice	12
Modem safety information	13
Laser compliance statement	13
Power supply statement	14
Introduction	15
Chapter 1. Arranging your workspace	17
Comfort	17
Glare and lighting	17
Air circulation	18
Electrical outlets and cable lengths	18
Chapter 2. Setting up your computer	19
Connecting your computer	19
Turning on power	24
Finishing the software installation	24
Completing important tasks	24
Updating your operating system	25
Installing other operating systems	25
Updating your antivirus software	25
Shutting down the computer	25
Chapter 3. Installing options	27
Features	27
Available options	30
Specifications	31
Supported operating positions	32
Tools required	33
Handling static-sensitive devices	33
Installing external options	34
Locating connectors on the front of your computer	34
Locating connectors on the rear of your computer	35
Obtaining device drivers	36
Opening the cover	37
Locating components	38
Identifying parts on the system board	39
Installing memory	40
Installing PCI adapters	41
Installing internal drives	43
Drive specifications	44
Installing a drive in bay 1	45
Connecting drives	46
Connecting additional serial ATA hard disk drive	47
Installing a diskette drive in bay 2	48
Security features	50
Identifying security locks	50
Rope Clip	51
Integrated cable lock	52
Password protection	52
Changing the battery	53
Erasing a lost or forgotten password (clearing CMOS)	54
Closing the cover and connecting the cables	55
Chapter 4. Recovering software	57
Creating and using product recovery discs	57
Backup and recovery	58
Using the Rescue and Recovery workspace	59
Solving recovery problems	60
Creating and using rescue media	60
Creating and using a Recovery Repair diskette	61
Recovering or installing device drivers	62
Setting a rescue device in the startup sequence	62
Chapter 5. Using the Setup Utility	65
Starting the Setup Utility program	65
Viewing and changing settings	65
Using passwords	65
Password considerations	65
User Password	66
Administrator Password	66
Setting, changing, and deleting a password	66
Selecting a startup device	66
Selecting a temporary startup device	66
Changing the startup device sequence	67
Advanced settings	67
Exiting from the Setup Utility program	67
Chapter 6. Updating system programs	69
Using system programs	69
Updating (flashing) BIOS from a diskette	69
Chapter 7. Troubleshooting and diagnostics	71
Basic troubleshooting	71
Diagnostic programs	72
PC-Doctor for Windows	73
PC-Doctor for DOS	73
Creating a diagnostic CD image	73
Creating diagnostic diskettes	73
Running diagnostics from the CD or diskettes	74
Running diagnostics from the Rescue and Recovery workspace	74
Cleaning the mouse	74
Optical mouse	75
Non-optical mouse	75
Chapter 8. Getting information, help, and service	77
Information resources	77
Online Books folder	77
ThinkVantage Productivity Center	77
Access Help	78
Warranty and safety	78
www.lenovo.com	78
Help and service	78
Using the documentation and diagnostic programs	79
Calling for service	79
Using other services	80
Purchasing additional services	80
Appendix A. Manual modem commands	81
Basic AT commands	81
Extended AT commands	83
MNP/V.42/V.42bis/V.44 commands	84
Fax Class 1 commands	85
Fax Class 2 commands	85
Voice commands	86
Appendix B. Notices	89
Television output notice	90
Trademarks	90

Match case Limit results 1 per page

you

have

powered

speakers

with

adapter,

use

the

following

instructions.

Connect

the

cable

that

runs

between

the

speakers,

necessary.

some

speakers,

this

cable

permanently

attached.

Connect

the

adapter

cable

the

speaker.

Connect

the

speakers

the

computer.

Connect

the

adapter

the

power

source.

you

have

unpowered

speakers

with

adapter,

use

the

following

instructions.

Connect

the

cable

that

runs

between

the

speakers,

necessary.

some

speakers,

this

cable

permanently

attached.

Connect

the

speakers

the

computer.

Connect

any

additional

devices

that

you

have.

Your

computer

might

not

have

all

connectors

that

are

shown.

1394

User

Guide