Lenovo ThinkStation 2551, Hardware Maintenance Manual, Page: 184 / 188

important 1
safety inspection guide 5
voltage-selection switch 5
safety inspection guide 5
SATA hard disk drives, installing 61
secondary hard disk drive, replacing, tower computers 108
security
enabling or disabling 57
security features
hardware-controlled passwords 169
operating system password 169
vital product data code 169
Self-service CRUs 81
self-service FRUs, tower computers 73
serial port 73, 81
serial port problems, troubleshooting 51
settings, changing and viewing, in the Setup Utility program 55
Setup Utility program
description 55
enabling ErP compliance mode 58
enabling or disabling a device 57
exiting 60
ICE performance mode 59
ICE thermal alert 59
passwords, using
Administrator password 56
considerations 56
description 55
hard disk password 56
lost or forgotten, erasing 57
power-on password 56
setting, changing, and deleting 56
selecting a startup device
description 58
selecting a temporary startup device 58
startup sequence 58
settings, changing and viewing 55
starting 55
Setup Utility, exiting 60
software problems, troubleshooting
description 52
software does not work as expected 52
sort feature 52
solid state drive, replacing, desktop computers 135
solid state drive, replacing, tower computers 104
specifications, physical
desktop computers 30
tower computers 29
starting the Setup Utility program 55
startup device, selecting
description 58
selecting a temporary startup device 58
startup sequence 58
startup sequence, changing 58
static-sensitive devices, handling
desktop computers 121
tower computers 87
support web site
support 32
support, web site 32
symptom-to-FRU index
description 65
error messages, miscellaneous 68
hard disk drive boot error 65
power supply problems 65
undetermined problems 69
system board
replacing 117
system board components and drives, accessing,
desktop computers 124
system board parts, desktop computers 84
system board parts, tower computers 76
T
television output notice 174
tertiary hard disk drive, replacing, tower computers 110
the BIOS, updating (flashing) 170
thermal function , monitoring 59
thermal sensor, replacing 160
tips, problem determination 33
tower computers
components, internal 73
connectors, controls, indicators on front 71
connectors, controls, indicators on rear 72
drives 78
FRU locations 73
FRU part numbers 75, 83
hardware, installing or replacing
card reader 97
completing the installation 120
computer cover 88
device drivers, obtaining 120
external options 87
front bezel 89
front fan assembly 101
heat sink fan assembly 99
memory module 93
optical drive 95
overview 87
PCI card 90
power supply assembly 113
primary hard disk drive 106
rear fan assembly 102
secondary hard disk drive 108
solid state drive 104
tertiary hard disk drive 110
specifications 29
static-sensitive devices, handling 87
system board parts 76
trademarks 174
troubleshooting 35
audio problems
a disc does not automatically play 38
description 37
no audio in DOS applications or games 38
no audio in Windows 38
sound comes from one external speaker only 38
bluetooth problems
description 48
178
ThinkStation Hardware Maintenance Manual