IBM 6648 User Manual
Page 182
Message/Symptom
FRU/Action
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
Setup/Configuration. (See “Setup Utility
program” on page 122.)
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” on page 108.
1.
Power Supply
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 first
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.
System Board
No power or fan not running
1.
See “Power supply” on page 108
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.
2.
System Board
3.
Display
168
Hardware Maintenance Manual: IBM NetVista Computer Types 6058, 6059, 6269, 6568, 6569, 6578, 6579, 6648,
6649