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Power-On Self-Test (POST) Indicators

20c
21c
22c
23c
24c
25c
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
L2 cache POST error. (The display shows a solid 20c for 5 seconds.)
L2 cache is not detected. (The display shows a solid 21c for 2 seconds.)
Attempting a normal mode IPL from FDDI specified in NVRAM IPL device
list.
Attempting a normal mode IPL from FDDI specified in IPL ROM device list.
Attempting a service mode IPL from FDDI specified in NVRAM IPL device
list.
Attempting a service mode IPL from FDDI specified in IPL ROM device list.
IPL attempted with keylock in the Secure position.
IPL ROM test failed or checkstop occurred (irrecoverable).
Unexpected machine check interrupt.
Unexpected data storage interrupt.
Unexpected instruction storage interrupt.
Unexpected external interrupt.
Unexpected alignment interrupt.
Unexpected program interrupt.
Unexpected floating point unavailable interrupt.
Unexpected SVC interrupt.
Unexpected SVC interrupt.
IPL ROM CRC comparison error (irrecoverable).
RAM POST memory configuration error or no memory found
(irrecoverable).
RAM POST failure (irrecoverable).
Power status register failed (irrecoverable).
A low voltage condition is present (irrecoverable).
IPL ROM code being uncompressed into memory.
End of boot list encountered.
RAM POST is looking for good memory.
RAM POST bit map is being generated.
IPL control block is being initialized.
NVRAM CRC comparison error during AIX IPL(key mode switch in Normal
mode). Reset NVRAM by reaccomplishing IPL in Service mode. For
systems with an internal, direct-bus-attached (DBA) disk, IPL ROM
attempted to perform an IPL from that disk before halting with this operator
panel display value.
Attempting a Normal mode IPL from Standard I/O planar-attached devices
specified in NVRAM IPL Devices List.
Attempting a Normal mode IPL from SCSI-attached devices specified in
NVRAM IPL Devices List.
Attempting a Normal mode IPL from 9333 subsystem device specified in
NVRAM IPL Devices List.
Attempting a Normal mode IPL from 7012 DBA disk-attached devices
specified in NVRAM IPL Devices List.
Attempting a Normal mode IPL from Ethernet specified in NVRAM IPL
Devices List.
Attempting a Normal mode IPL from Token-Ring specified in NVRAM IPL
Devices List.
Attempting a Normal mode IPL from NVRAM expansion code.
Attempting a Normal mode IPL from NVRAM IPL Devices List; cannot IPL
from any of the listed devices, or there are no valid entries in the Devices
List.
Operator Panel Display Numbers
E-3

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