Miscellaneous Error Conditions - Lenovo ThinkCentre M73 10B0 Hardware Maintenance Manual

Miscellaneous error conditions

Message/Symptom
Changing display colors
Computer will not power-off. See "Hard disk drive boot
error" on page 63.
Computer will not RPL from server
Computer will not perform a Wake On LAN
Dead computer. See "Hard disk drive boot error" on page
63.
Diskette drive in-use light remains on or does not light
when drive is active.
Blank screen except for flashing cursor.
Incorrect memory size during POST
"Insert a Diskette" icon appears with a known-good
diagnostics diskette in the first 3.5-inch diskette drive.
Intensity or color varies from left to right of characters
and color bars
No power or fan not running
FRU/Action
Display/Monitor
1. Power Switch
2. System Board
3. Riser card, if installed.
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)
®
(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
Setup/Configuration (see "Starting the Setup Utility
program" on page 57)
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
1. Diskette Drive
2. System Board
3. Diskette Drive Cable
1. System Board
2. Primary Hard Disk Drive
3. Hard Disk Drive Cable
1. Run the Memory tests.
2. Memory Module
3. System Board
1. System Board
2. Diskette Drive Cable
3. Network Adapter
1. Display
2. Video adapter (if present)
3. System Board
1. See "Hard disk drive boot error" on page 63.
.
Chapter 7 Symptom-to-FRU Index
65