Lenovo ThinkStation 2551, Hardware Maintenance Manual, Page: 185 / 188

no sound from the headphone 48
PIM items not received correctly 48
CD problems
CD or DVD does not work 39
description 39
disc does not automatically play 39
unable to use a startable recovery medium 39
description 37
DVD problems
black screen instead of DVD video 40
description 40
DVD movie will not play 40
invalid disc or no disc found message 41
no audio or intermittent audio while playing DVD movie 40
playback is slow or choppy 40
ethernet problems
1000 Mbps connection fails or errors occur 47
adapter connects at 100 Mbps instead of 1000 Mbps 47
adapter stops working for no apparent reason 47
description 46
Wake on LAN feature not working 47
general checkout procedure 33
hard disk drive problems
description 41
hard disk drives missing from the Setup Utility program 41
no operating system found message 42
intermittent problems 41
keyboard, mouse, or pointing device problems
description 42
fingerprint reader does not work 43
keys do not work 42
mouse or pointing device does not work 43
pointer on the screen does not move smoothly with
the mouse 43
wireless keyboard does not work 43
monitor problems
description 44
image is discolored 45
image is flickering 45
screen goes blank after a period of inactivity 44
screen goes blank when starting some programs 44
wrong characters appear on the screen 44
networking problems
description 45
wireless LAN problem 47
wireless WAN problem 48
option problems
an option that previously worked does not work now 49
an option that was just installed does not work 48
description 48
performance and lockup problems
description 49
insufficient memory 51
printer problems 51
problem determination tips 33
procedure 36
serial port problems 51
software problems
description 52
software does not work as expected 52
sort feature 52
USB problems 53
troubleshooting, diagnostics 35
U
undetermined problems 69
updating
(flashing) the BIOS 170
USB 2.0 connector 81
USB 3.0 connector 81
USB connector 73
USB problems, troubleshooting 53
V
VGA monitor connector 73, 81
vital product data code 169
voltage-selection switch safety 5
VPD , See vital product data code
© Copyright Lenovo 2012 179