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Lenovo ThinkCentre M52 User Manual - Page 24

Locating, connectors, computer

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Locating the connectors on the rear of your computer The following illustration shows the locations of the connectors on the rear of the computer. 1 Diagnostic LEDs 2 Voltage selection switch 3 Power connector 4 Audio line out connector 5 Audio line in connector 6 VGA monitor connector 7 Parallel connector 8 Serial connector (COM 1) 9 Serial connector (COM 2) (some models) 10 Standard mouse connector 11 Standard keyboard connector 12 USB connectors (4) 13 Ethernet connector 14 USB connectors (2) 15 PCI Express (x16) graphics adapter connector (some models) 16 PCI Express (x1) adapter connector 17 PCI adapter connectors 18 PCI adapter connectors Note: Some connectors on the rear of the computer are color-coded to help you determine where to connect the cables on your computer. 8 User Guide

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
Overview	15
Information resources	15
Chapter 1. Installing options	17
Features	17
Specifications	20
Available options	21
Tools required	21
Handling static-sensitive devices	22
Installing external options	22
Locating the connectors on the front of your computer	23
Locating the connectors on the rear of your computer	24
Obtaining device drivers	25
Removing the cover	26
Pivoting or removing the optional hard disk drive mounting bracket	27
Locating components	29
Identifying parts on the system board	30
Installing memory	31
Installing adapters	32
Installing internal drives	33
Drive specifications	33
Installing a drive in bay 1 or bay 2	35
Connecting drives	37
Connecting the first optical drive	37
Connecting an additional optical drive, or parallel ATA hard disk drive	37
Connecting a serial ATA hard disk drive	38
Installing security features	38
Identifying security locks	39
Padlock	40
Integrated cable lock	41
Password protection	41
Changing the battery	41
Erasing a lost or forgotten password (clearing CMOS)	42
Replacing the cover and connecting the cables	43
Chapter 2. Using the Setup Utility program	45
Starting the Setup Utility program	45
Viewing and changing settings	45
Using passwords	45
Password considerations	45
User Password	46
Administrator Password	46
IDE Drive User Password	47
IDE Drive Master Password	47
Setting, changing, and deleting a password	47
Resetting the hard disk drive and power-on password	47
Using Security Profile by Device	49
Selecting a startup device	49
Selecting a temporary startup device	49
Changing the startup sequence	49
Exiting from the Setup Utility program	50
Advanced settings	50
Appendix A. Updating system programs	51
System programs	51
Updating (flashing) BIOS from a diskette or CD-ROM	51
Updating (flashing) BIOS from your operating system	52
Recovering from a POST/BIOS update failure	52
Appendix B. Cleaning the mouse	53
Cleaning an optical mouse	53
Cleaning a mouse with a ball	53
Appendix C. Manual modem commands	55
Basic AT commands	55
Extended AT commands	57
MNP/V.42/V.42bis/V.44 commands	58
Fax Class 1 commands	59
Fax Class 2 commands	59
Voice commands	60
Appendix D. Notices	63
Television output notice	64
Trademarks	64

Match case Limit results 1 per page

Locating

the

connectors

the

rear

your

computer

The

following

illustration

shows

the

locations

the

connectors

the

rear

the

computer.

±1²

Diagnostic

LEDs

±10²

Standard

mouse

connector

±2²

Voltage

selection

switch

±11²

Standard

keyboard

connector

±3²

Power

connector

±12²

USB

connectors

(4)

±4²

Audio

line

out

connector

±13²

Ethernet

connector

±5²

Audio

line

connector

±14²

USB

connectors

(2)

±6²

VGA

monitor

connector

±15²

PCI

Express

(x16)

graphics

adapter

connector

(some

models)

±7²

Parallel

connector

±16²

PCI

Express

(x1)

adapter

connector

±8²

Serial

connector

(COM

±17²

PCI

adapter

connectors

±9²

Serial

connector

(COM

(some

models)

±18²

PCI

adapter

connectors

Note:

Some

connectors

the

rear

the

computer

are

color-coded

help

you

determine

where

connect

the

cables

your

computer.

User

Guide