Contents
Important safety information . . . . . . v
Service and upgrades . . . . . . . . . . . . .
v
Static electricity prevention . . . . . . . . . . .
v
Power cords and power adapters . . . . . . . . vi
Extension cords and related devices . . . . . . . vi
Plugs and outlets. . . . . . . . . . . . . .
vii
External devices . . . . . . . . . . . . . .
vii
Heat and product ventilation . . . . . . . . .
vii
Operating environment . . . . . . . . . . .
viii
Modem safety information . . . . . . . . . .
viii
Laser compliance statement . . . . . . . . . . ix
Power supply statement . . . . . . . . . . . . ix
Cleaning and maintenance . . . . . . . . . . . ix
Chapter 1. Product overview . . . . . . 1
Features . . . . . . . . . . . . . . . . . .
1
Specifications . . . . . . . . . . . . . . . .
4
Lenovo programs
. . . . . . . . . . . . . .
5
Accessing Lenovo programs on the Windows
7 operating system . . . . . . . . . . . .
5
Accessing Lenovo programs on the Windows
8 operating system . . . . . . . . . . . .
6
An introduction to Lenovo programs . . . . .
6
Locations. . . . . . . . . . . . . . . . . .
8
Locating connectors, controls, and indicators
on the front of your computer . . . . . . . .
9
Locating connectors on the rear of your
computer . . . . . . . . . . . . . . .
10
Locating components . . . . . . . . . .
11
Locating parts on the system board
. . . .
12
Locating internal drives . . . . . . . . .
13
Machine type and model label . . . . . . .
14
Chapter 2. Using your computer . . .
15
Frequently asked questions
. . . . . . . . .
15
Accessing Control Panel on the Windows 8
operating system. . . . . . . . . . . . . .
15
Using the keyboard . . . . . . . . . . . . .
16
Using Windows shortcut keys . . . . . . .
16
Using the blue ThinkVantage button . . . .
16
Using a fingerprint reader
. . . . . . . .
16
Using the wheel mouse . . . . . . . . . . .
17
Adjusting audio . . . . . . . . . . . . . .
17
About your computer audio . . . . . . . .
17
Setting the volume from the desktop . . . .
17
Setting the volume from Control Panel
. . .
18
Using CDs and DVDs . . . . . . . . . . . .
18
Handling and storing CD and DVD media . .
18
Playing a CD or DVD . . . . . . . . . .
19
Recording a CD or DVD . . . . . . . . .
19
Chapter 3. You and your computer . .
21
Accessibility and comfort . . . . . . . . . .
21
Arranging your workspace . . . . . . . .
21
Comfort . . . . . . . . . . . . . . .
21
Glare and lighting . . . . . . . . . . . .
22
Air circulation . . . . . . . . . . . . .
22
Electrical outlets and cable lengths . . . . .
22
Registering your computer . . . . . . . . . .
23
Moving your computer to another country or
region . . . . . . . . . . . . . . . . . .
23
Voltage-selection switch . . . . . . . . .
23
Replacement power cords . . . . . . . .
24
Chapter 4. Security . . . . . . . . . .
25
Security features . . . . . . . . . . . . . .
25
Locking the computer cover . . . . . . . . .
26
Attaching an integrated cable lock . . . . . . .
27
Using passwords. . . . . . . . . . . . . .
27
BIOS passwords . . . . . . . . . . . .
27
Windows passwords . . . . . . . . . .
28
Configuring the fingerprint reader . . . . . . .
28
Using and understanding firewalls . . . . . . .
28
Protecting data against viruses . . . . . . . .
28
Chapter 5. Installing or replacing
hardware . . . . . . . . . . . . . . .
31
Handling static-sensitive devices . . . . . . .
31
Installing or replacing hardware . . . . . . . .
31
Installing external options
. . . . . . . .
31
Removing the computer cover. . . . . . .
32
Removing and reinstalling the front bezel . .
32
Accessing the system board components and
drives . . . . . . . . . . . . . . . .
34
Installing or replacing a PCI card . . . . . .
35
Installing or replacing a memory module . . .
37
Replacing the battery . . . . . . . . . .
38
Replacing the hard disk drive . . . . . . .
40
Replacing the optical drive . . . . . . . .
42
Replacing the power supply assembly
. . .
45
Replacing the heat sink and fan assembly . .
49
Replacing the microprocessor . . . . . . .
52
Replacing the system fan assembly
. . . .
55
Replacing the front audio and USB
assembly . . . . . . . . . . . . . . .
56
© Copyright Lenovo 2012
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Summary of Contents for ThinkCentre 3493
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