Lenovo ThinkCentre 7515 Hardware Maintenance Manual page 290

R
rear connectors 85, 125
rear fan assembly, replacing 115
recovering
from a POST/BIOS update failure 278
recovery
Boot-block Recovery 278
removing computer cover 86
replacing
battery 95, 134
card reader 112, 149
diskette drive 112
front audio and USB assembly 119, 150
front fan assembly 113
hard disk drive 105, 136
heat sink and fan assembly 98, 142
internal speaker 117, 151
microprocessor 100, 144
optical drive 110, 137
PCI card 92
power supply assembly 96, 140
rear fan assembly 115
system board 103, 147
RoHS 2
S
safety information 3
safety inspection guide 5
safety notices 7
security
enabling or disabling 53
selecting
startup device 53
temporary startup device 53
Set Administrator Password 52
Set Power-On Password 52
settings
changing 51
viewing 51
Setup Utility program 51
Setup Utility program, exiting 54
Setup Utility program, starting 51
starting the Setup Utility program 51
startup device 53
sequence, changing 54
temporary, selecting 53
Symptom-to-FRU index 55
system board
components, accessing 127
connectors 89, 129
locating parts 89, 129
location 89, 129
memory module 90, 130
system board, replacing 103, 147
T
temporary startup device 53
test results 48
tips, problem determination 43
U
undetermined problems 81
284
Hardware Maintenance Manual
updating
(flashing) BIOS 278
updating (flashing) BIOS 278
using
passwords 51
Setup Utility program 51
V
viewing and changing settings 51
voltage-selection switch 5