IBM TotalStorage 300 Service Manual page 56

Beep/Symptom
1-2-3 (DMA page register write/read
failed)
1-2-4 (RAM refresh verification
failed)
1-3-1 (1st 64K RAM test failed)
1-3-2 (1st 64K RAM parity test
failed)
2-1-1 (Secondary DMA register
failed)
2-1-2 (Primary DMA register failed)
2-1-3 (Primary interrupt mask
register failed)
2-1-4 (Secondary interrupt mask
register failed)
2-2-2 (Keyboard controller failed)
2-2-3 (CMOS power failure and
checksum checks failed)
2-2-4 (CMOS configuration
information validation failed)
2-3-1 (Screen initialization failed)
2-3-2 (Screen memory failed)
2-3-3 (Screen retrace failed)
2-3-4 (Search for video ROM failed)
2-4-1 (Video failed; screen believed
operable)
3-1-1 (Timer tick interrupt failed)
3-1-2 (Interval timer channel 2 failed) 1. System Board
3-1-3 (RAM test failed above
address OFFFFH)
3-1-4 (Time-Of-Day clock failed)
3-2-1 (Serial port failed)
3-2-2 (Parallel port failed)
3-2-3 (Math coprocessor failed)
3-2-4 (Failure comparing CMOS
memory size against actual)
46
IBM NAS 300 Service Guide
FRU/Action
1. System Board
1. DIMM
2. System Board
1. DIMM
1. DIMM
2. System Board
1. System Board
1. System Board
1. System Board
1. System Board
1. System Board
2. Keyboard
1. Battery
2. System Board
1. Battery
2. System Board
1. Jumper on J14
2. System Board
1. System Board
1. System Board
1. System Board
1. System Board
1. System Board
1. DIMM
2. System Board
1. Battery
2. System Board
1. System Board
1. System Board
1. Processor
1. DIMM
2. Battery