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Message/Symptom FRU/Action
Computer will not PXE from server
1. Ensure that network is in startup sequence as rst
device or rst device after diskette
2. Ensure that network adapter is enabled for PXE
3. Network adapter (Advise network administrator of
new MAC address).
Computer will not perform a 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 the Wake On LAN operation
3. Ensure Wake on LAN feature is enabled in
Setup/Conguration (see “Starting the Setup Utility
program” on page 41)
4. Ensure network administrator is using correct MAC
address
5. Ensure no interrupt or I/O address conicts
6. Network adapter (advise network administrator of
new MAC address)
Dead computer. See “Power problems” on page 33. 1. AC/DC Power Adapter
2. System Board
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
Flashing cursor with an otherwise blank display.
1. System Board
2. Primary Hard Disk Drive
3. Hard Disk Drive Cable
Incorrect memory size during POST
1. Run the Memory tests
2. Memory Module
3. System Board
"Insert a Diskette" icon appears with a known-good
diagnostics diskette in the rst 3.5-inch diskette drive.
1. System Board
2. Diskette Drive Cable
3. Network Adapter
Intensity or color varies from left to right of characters
and color bars
1. Display
2. Video adapter (if present)
3. System Board
No power or fan not running
1. See “Power problems” on page 33.
Non-system disk or disk error-type message with a
known-good diagnostic diskette.
1. Diskette Drive
2. System Board
3. Diskette Drive Cable
Other display symptoms not listed above (including blank
or illegible display)
1. Display
2. System Board
Power-on indicator or hard disk drive in-use light not on,
but computer works correctly
1. Power switch/LED assembly
2. System Board
Printer problems 1. Printer
2. System Board
Chapter 7. Symptom-to-FRU index 63