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Message/Symptom FRU/Action
Non-system disk or disk error-type message with
a known-good diagnostic diskette.
1. Diskette Drive
2. System Board
3. Diskette Drive Cable
4. Riser card
Drives not recognized by the Fixed Disk diagnostic
(e.g., you have six drives but the fixed disk test
only shows three)
1. Remove the first drive that does not show up
and rerun the Fixed Disk diagnostic. If the
remaining drives then show up, replace the
drive you removed.
Hang during Fixed Disk diagnostic
1. Remove the hard file being tested at the time
of the hang.
2. Rerun the diagnostic.
3. If successful, replace the drive you removed.
Other display symptoms not listed above
(including blank or illegible display)
1. See “Display” on page 32
2. System Board
3. Display
Power-on indicator or hard disk drive in-use light
not on, but computer works correctly
1. Power Supply
2. System Board
3. LED Cables
Printer problems
1. See “Printer” on page 29
Program loads from the hard disk with a
known-good diagnostics diskette in the first
3.5-inch diskette drive
1. Run Setup
2. Diskette Drive
3. Diskette Drive Cable
4. System Board
5. Riser card
6. Power Supply
RPL computer cannot access programs from its
own hard disk.
1. If network administrator is using LCCM
Hybrid RPL, check startup sequence:
a. First device - network
b. Second device - hard disk
2. Hard disk drive
RPL computer does not RPL from server
1. Check startup sequence
2. Check the network adapter LED status
Chapter 2. Types 6568/6569/6648/6649 89