Lenovo 3421 Personal Computer User Manual


 
memory module 18
PCI card 15
security features 39
internal drives 1
internal speaker, replacing 35
K
keyboard connector 9
keyboard, replacing 37
L
Lenovo ThinkVantage Toolbox 56
Lenovo ThinkVantage Tools 59
Lenovo Web site 60
Lenovo Welcome 5, 60
locating components 9
M
media, creating and using recovery media 43
memory module
installing, replacing 18
system board 18
Microphone connector 9
mouse connector 9
mouse, replacing 37
N
notice, television output 64
notices 63
O
online books folder 59
operations, backup and recovery 44
optical drive, replacing 20
optical mouse
cleaning 58
P
padlock loop 40
parts replacement, completing 38
password
Administrator 50
considerations 49
Power-On Password 50
setting, changing, deleting 50
password protection 41
passwords
erasing 41
lost or forgotten 41
passwords, using 49
PC-Doctor for Rescue and Recovery 57
PCI card 15
installing, replacing 15
slots 15
physical specications 3
power
Advanced Conguration and Power Interface (ACPI)
support 2
features 2
power supply assembly, replacing 24
power-on self-test (POST) 53
Power-On, Password 50
productivity center, ThinkVantage 59
programs, updating system 53
protection, password 41
purchasing additional services 62
R
rear connectors 7
rear fan assembly, replacing 32
recovering
from a POST/BIOS update failure 54
software 43
recovery
boot-block 54
operations, backup and 44
problems, solving 48
recovery media, creating and using 43
reinstalling
device drivers 47
removing computer cover 14
replacing
battery 22
hard disk drive 26
heat sink and fan assembly 25
Rescue and Recovery 43
workspace, Rescue and Recovery 45
Rescue and Recovery workspace 45
resources, information 59
S
safety vii
safety information 60
security
cable lock 39
enabling or disabling 50
features 2, 39
integrated cable lock 40
padlock loop 40
selecting
startup device 51
temporary startup device 51
serial port 9
service
and help 61
customer support center 61
getting 59
services
other 62
purchasing additional 62
setting
password 50
66 ThinkCentre User Guide