IBM 6648 User Manual
Page 170

POST Error Code
FRU/Action
301
1.
Keyboard
2.
Keyboard Cable
3.
System Board
303
With an 8603 error
1.
Mouse
2.
Keyboard
3.
Keyboard Cable
4.
System Board
303
With no 8603 error
1.
Keyboard
2.
Keyboard Cable
3.
System Board
3XX
Not listed above
1.
Keyboard
2.
Keyboard Cable
3.
System Board
5XX
1.
Video Adapter (if installed)
2.
System Board
601
1.
Diskette Drive A
2.
Diskette Drive Cable
3.
System Board
602
1.
Bad Diskette?
2.
Verify Diskette and retry
604
And able to run diagnostics
1.
Run Setup and verify diskette configuration
settings
2.
Diskette Drive A/B
3.
Diskette Drive Cable
4.
System Board
605
POST cannot unlock the diskette drive
1.
Diskette Drive
2.
Diskette Drive Cable
3.
System Board
662
1.
Diskette drive configuration error or wrong
diskette drive type; run Setup Configuration
156
Hardware Maintenance Manual: IBM NetVista Computer Types 6058, 6059, 6269, 6568, 6569, 6578, 6579, 6648,
6649