Lenovo 4498 Computer Hardware User Manual


 
rear fan assembly, replacing 108
recovering
from a POST/BIOS update failure 470
recovery
boot-block 470
removing
computer cover 79
removing, reinstalling
front bezel 80, 122
replacing
battery 92, 133
card reader 91
front audio and USB assembly 110
hard disk drive 103, 134
heat sink and fan assembly 95, 139
microprocessor 97, 147
power supply assembly 93, 142
S
security
enabling or disabling 45
selecting
startup device 46
temporary startup device 46
Set Power-On Password 44
setting
password 44
settings
changing 43
viewing 43
Setup Utility program 43
Setup Utility program, starting 43
Setup Utility, exiting 47
starting the Setup Utility program 43
startup device 46
sequence, changing 46
temporary, selecting 46
static-sensitive devices, handling 78, 120
system board
connectors 77, 119
locating parts 77, 119
system board components and drives
accessing 124
system fan assembly, replacing 153
T
temporary startup device 46
the BIOS, updating (ashing) 469–470
ThinkVantage productivity center 33
U
updating
(ashing) the BIOS 469
updating (ashing) the BIOS 470
using
passwords 43
Setup Utility program 43
V
viewing and changing settings 43
476 ThinkCentre Hardware Maintenance Manual