IBM 7163, Problem Determination And Service Manual, Page: 187 / 210

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v
See Chapter 3, “Parts listing, System x3755 Type 8877 and 7163,” on page 25 to determine which
components are customer replaceable units (CRU) and which components are field replaceable units
(FRU).
v
If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
BMC log message
Sensor
number Sensor
type
Action
Primary HT2100 initiated
sync flood: PCI-e slot n
error AB-AC 21
1. Reseat the failing adapter.
2. Replace the failing adapter.
3. (Trained service technician only) Replace the I/O board, see
“Removing the I/O board assembly” on page 68 and
“Replacing the I/O board assembly” on page 69.
Primary HT2100 initiated
sync flood: SAS error AB-AC 21 (Trained service technician only) Replace the I/O board, see
“Removing the I/O board assembly” on page 68 and “Replacing
the I/O board assembly” on page 69.
Processor n initiated sync
flood: DIMM n failed AB-AC 21
1. Reseat the failing DIMM, see “Removing a DIMM” on page 48
and “Replacing a DIMM” on page 49.
2. Reseat the microprocessor/memory card. See “Removing a
microprocessor/memory card” on page 51 and “Replacing a
microprocessor/memory card” on page 51.
3. Replace the microprocessor/memory card. See “Removing a
microprocessor/memory card” on page 51 and “Replacing a
microprocessor/memory card” on page 51.
Processor n initiated sync
flood: Processor n failed AB-AC 21
1. Reseat the microprocessor/memory card. See “Removing a
microprocessor/memory card” on page 51 and “Replacing a
microprocessor/memory card” on page 51.
2. Replace the microprocessor/memory card. See “Removing a
microprocessor/memory card” on page 51 and “Replacing a
microprocessor/memory card” on page 51.
Processor n initiated sync
flood: Slot n error
(possible timeout
condition) AB-AC 21
1. Reseat the failing adapter.
2. Replace the failing adapter.
3. (Trained service technician only) Replace the I/O board, see
“Removing the I/O board assembly” on page 68 and
“Replacing the I/O board assembly” on page 69.
Secondary HT2100
initiated sync flood: PCI-e
slot n error AB-AC 21
1. Reseat the failing adapter.
2. Replace the failing adapter.
3. (Trained service technician only) Replace the I/O board, see
“Removing the I/O board assembly” on page 68 and
“Replacing the I/O board assembly” on page 69.
PCI PME AC 09 Information only
DASD backplane detect AD 1B Information only
IDE cable detect AE 1B Information only
SEL fullness B6 D0 Information only
CPU 1 hot C0 01 Information only
CPU 2 hot C1 01 Information only
CPU 3 hot C2 01 Information only
CPU 4 hot C3 01 Information only
Chapter 5. Diagnostics
171