Checkpoint Description Action/
Possible Failing FRU
E591 Set up EADS function registers
1. Check for system firmware updates.
2. Replace the I/O subsystem’s RIO riser
card (location: U0.dd-P1.1) specified by
the location code.
3. If the location code associated with this
checkpoint specifies a PCI adapter
card, replace the adapter card.
4. Replace the I/O subsystem backplane
specified by the location code.
5. Go to “MAP 1542: I/O Problem
Isolation” on page 127.
E592 Set up EADS function registers
1. Check for system firmware updates.
2. Replace the I/O subsystem’s RIO riser
card (location: U0.dd-P1.1) specified by
the location code.
3. If the location code associated with this
checkpoint specifies a PCI adapter
card, replace the adapter card.
4. Replace the I/O subsystem backplane
specified by the location code.
5. Go to “MAP 1542: I/O Problem
Isolation” on page 127.
E593 Set up EADS function registers
1. Check for system firmware updates.
2. Replace the I/O subsystem’s RIO riser
card (location: U0.dd-P1.1) specified by
the location code.
3. If the location code associated with this
checkpoint specifies a PCI adapter
card, replace the adapter card.
4. Replace the I/O subsystem backplane
specified by the location code.
5. Go to “MAP 1542: I/O Problem
Isolation” on page 127.
E594 Begin probing slots
1. Check for system firmware updates.
2. Replace the I/O subsystem’s RIO riser
card (location: U0.dd-P1.1) specified by
the location code.
3. If the location code associated with this
checkpoint specifies a PCI adapter
card, replace the adapter card.
4. Replace the I/O subsystem backplane
specified by the location code.
5. Go to “MAP 1542: I/O Problem
Isolation” on page 127.
Chapter 4. Checkpoints 197