Lenovo ThinkCentre M50 Hardware Maintenance Manual (HMM) - Page 113

Miscellaneous, error, messages

Page 113 highlights

Miscellaneous error messages Message/Symptom CMOS Backup Battery inaccurate Changing colors Computer will not power-off. See "Power Supply Errors" on page 70. Computer will not RPL from server Computer will not Wake On LAN (if applicable) Dead computer. See "Power Supply Errors" on page 70. Diskette drive in-use light remains on or does not light when drive is active. Flashing cursor with an otherwise blank display. Incorrect memory size during POST FRU/Action 1. CMOS Backup Battery (see "Replacing the battery (all machine types)" on page 56) 2. System Board Display 1. Power Switch 2. System Board 3. Riser card 1. Ensure that network is in startup sequence as first device or first device after diskette 2. Ensure that network adapter is enabled for RPL 3. Network adapter (Advise network administrator of new MAC address) 1. Check power supply and signal cable connections to network adapter 2. Ensure that the operating system settings are set to enable Wake on LAN 3. Ensure Wake On LAN feature is enabled in the IBM Setup Utility program. See Chapter 5, "IBM Setup Utility program," on page 19). 4. Ensure network administrator is using correct MAC address 5. Ensure no interrupt or I/O address conflicts 6. Network adapter (advise network administrator of new MAC address) 1. Power Supply 2. System Board 3. Riser card 1. Diskette Drive 2. System Board 3. Diskette Drive Cable 4. Riser card 1. System Board 2. Primary Hard Disk Drive 3. Hard Disk Drive Cable 4. Riser card 1. Run the Memory tests 2. Memory Module 3. System Board Chapter 7. Symptom-to-FRU Index 107

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Miscellaneous
error
messages
Message/Symptom
FRU/Action
CMOS
Backup
Battery
inaccurate
1.
CMOS
Backup
Battery
(see
“Replacing
the
battery
(all
machine
types)”
on
page
56)
2.
System
Board
Changing
colors
Display
Computer
will
not
power-off.
See
“Power
Supply
Errors”
on
page
70.
1.
Power
Switch
2.
System
Board
3.
Riser
card
Computer
will
not
RPL
from
server
1.
Ensure
that
network
is
in
startup
sequence
as
first
device
or
first
device
after
diskette
2.
Ensure
that
network
adapter
is
enabled
for
RPL
3.
Network
adapter
(Advise
network
administrator
of
new
MAC
address)
Computer
will
not
Wake
On
LAN
(if
applicable)
1.
Check
power
supply
and
signal
cable
connections
to
network
adapter
2.
Ensure
that
the
operating
system
settings
are
set
to
enable
Wake
on
LAN
3.
Ensure
Wake
On
LAN
feature
is
enabled
in
the
IBM
Setup
Utility
program.
See
Chapter
5,
“IBM
Setup
Utility
program,”
on
page
19).
4.
Ensure
network
administrator
is
using
correct
MAC
address
5.
Ensure
no
interrupt
or
I/O
address
conflicts
6.
Network
adapter
(advise
network
administrator
of
new
MAC
address)
Dead
computer.
See
“Power
Supply
Errors”
on
page
70.
1.
Power
Supply
2.
System
Board
3.
Riser
card
Diskette
drive
in-use
light
remains
on
or
does
not
light
when
drive
is
active.
1.
Diskette
Drive
2.
System
Board
3.
Diskette
Drive
Cable
4.
Riser
card
Flashing
cursor
with
an
otherwise
blank
display.
1.
System
Board
2.
Primary
Hard
Disk
Drive
3.
Hard
Disk
Drive
Cable
4.
Riser
card
Incorrect
memory
size
during
POST
1.
Run
the
Memory
tests
2.
Memory
Module
3.
System
Board
Chapter
7.
Symptom-to-FRU
Index
107