IBM 689912U - IntelliStation Z - Pro 6899, Hardware Maintenance Manual

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One beep and the appearance of text on the display
indicates successful completion of the POST. More than
one beep indicates that the POST detects an error.
Note
Type 6275, 6285, 6561, 6591, 6862, 6889, 6892,
6893 computers are default to come up quiet (No
beep and no memory count and checkpoint code
display) when no errors are detected by POST.
To enable Beep and memory count and checkpoint
code display when a successful POST occurs:
1. Enable Power on Status in setup. See “Setup
Utility Program” on page 220.
Error Code Format
This section provides an explanation of the encoded
non-SCSI and SCSI POST error codes.
Error messages are displayed on the screen as three, four,
five, eight, twelve, or thirteen digits. An “X” in an error
message can be any number or letter. The shorter POST
errors are highlighted in the Symptom-to-FRU Index.
Some digits will represent different information for SCSI
errors versus non-SCSI errors.
The following figure shows which digits display the shorter
POST errors. The figure also defines additional SCSI
information.
Notes
Ÿ
Non-IBM device error codes and documentation
supersede this list.
Ÿ
Duplicate SCSI ID settings will cause misleading
error symptoms or messages.
RDDDPLSCB QEET
│└┬┘│││││ │└┤└─ Test state
│ │ │││││ │ └── Error code Extension
│ │ │││││ └──── Qualifier
│ │ │││││
│ │ ││││└─────
Bus (ð=internal
1=external)
│ │ │││└──────
Capacity of the device
│ │ ││└───────
Slot number of the device
│ │ │└────────
LUN (usually ð)
│ │ └─────────
PUN (SCSI ID #)
│ │
│ └───────────
Device Number
└─────────────
Reserved Digit (usually ð)
204
IBM PC 300/700, IntelliStation Series HMM