Table 6. Firmware Error Codes. (continued)
Error Code Description Action/
Possible Failing FRU
20FB 0010 Failed to find the keyword offset of SPCN
configuration table in NVRAM
1. Check RIO cable connections
2. Clear NVRAM and retry
3. Check for system firmware update
4. Replace primary I/O drawer backplane
Location: U0.1-P1
20FB 0020 Invalid SPCN configuration table flag before
SPCN table update
1. Check RIO cable connections
2. Clear NVRAM and retry
3. Check for system firmware update
4. Replace primary I/O drawer backplane
Location: U0.1-P1
20FB 0021 Invalid SPCN configuration table flag after
SPCN table update
1. Check RIO cable connections
2. Clear NVRAM and retry
3. Check for system firmware update
4. Replace primary I/O drawer backplane
Location: U0.1-P1
20FB 0025 The number of I/O drawers reported by
System Power Control Network (SPCN) is
not equal to the number of I/O drawers
reported by Remote I/O (RIO).
1. If there is an error indication in any
secondary I/O drawer operator panel,
follow the repair action for that error
indication.
2. Go to “MAP 1540: Minimum
Configuration” on page 110 to isolate the
failing I/O drawer, then to isolate the
failure within that drawer.
20FB 0030 Failure to read I/O drawer SPCN address
Uninitialized--failed to read SPCN address
1. Check RIO cable connections
2. Check for system firmware update
3. Replace RIO card assembly
4. Replace I/O backplane if not already
replaced (location code indicates which
drawer)
20FB 0031 Failure to read I/O drawer SPCN address
Initialization in Process--SPCN initializing the
VPD segments
1. Check RIO cable connections
2. Check for system firmware update
3. Replace RIO card assembly
4. Replace I/O backplane if not already
replaced (location code indicates which
drawer)
20FB 0032 Failure to read I/O drawer SPCN address
Initialization Unsuccessful
1. Check RIO cable connections
2. Check for system firmware update
3. Replace RIO card assembly
4. Replace I/O backplane if not already
replaced (location code indicates which
drawer)
20FB 003A Failure to read I/O drawer SPCN address
Invalid RIO or I/O drawer number.
1. Check RIO cable connections
2. Check for system firmware update
3. Replace RIO card assembly
4. Replace I/O backplane if not already
replaced (location code indicates which
drawer)
20FB 0040 Failed to match SPCN address to SPCN
node entry address.
1. Check RIO cable connections
2. Check for system firmware update
3. Replace RIO card assembly
4. Replace I/O backplane if not already
replaced (location code indicates which
drawer)
198 Service Guide
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