Miscellaneous Error Messages; Power Supply - Lenovo ThinkCentre A52 Hardware Maintenance Manual

Hardware maintenance manual
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Miscellaneous error messages

86
Hardware Maintenance Manual
Message/Symptom
CMOS Backup Battery inaccurate
Changing colors
Computer will not power-off. See "Power
Supply Errors" on page 57.
Computer will not RPL from server
Computer will not perform a Wake On
®
LAN
(if applicable)
Dead computer. See "Power Supply Errors"
on page 57.
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 Chapter 2,
"Safety information," on page 5)
2. System Board
Display/Monitor
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 Setup/Configuration (see "Starting the
Setup Utility program" on page 53)
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
®

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