Reference Code Description/Action
Perform all actions before exchanging Failing Items
Failing Item
2420 Main storage failure
A memory card at the specified location is faulty.
Probability is mandatory.
Record function code 19 from the operator panel. This
function code is the CCIN identifier, which is used to
determine the processor or memory card type. To get the
part number for the failing card, find the CCIN number in
the parts tables under “Electronic Cards” on page 556.
Memory Card, M01
Location: U1.1-P1-M1
00-00
2421 Main storage failure
A memory card at the specified location is faulty.
Probability is mandatory.
Record function code 19 from the operator panel. This
function code is the CCIN identifier, which is used to
determine the processor or memory card type. To get the
part number for the failing card, find the CCIN number in
the parts tables under “Electronic Cards” on page 556.
Memory Card, M02
Location: U1.1-P1-M2
AIX Location Code: 00-00
2422 Main storage failure
A memory card at the specified location is faulty.
Probability is mandatory.
Record function code 19 from the operator panel. This
function code is the CCIN identifier, which is used to
determine the processor or memory card type. To get the
part number for the failing card, find the CCIN number in
the parts tables under “Electronic Cards” on page 556.
Memory Card, M03
Location: U1.1-P1-M3
AIX Location Code: 00-00
2423 Main storage failure
A memory card at the specified location is faulty.
Probability is mandatory.
Record function code 19 from the operator panel. This
function code is the CCIN identifier, which is used to
determine the processor or memory card type. To get the
part number for the failing card, find the CCIN number in
the parts tables under “Electronic Cards” on page 556.
Memory Card, M24
Location: U1.1-P1-M16
AIX Location Code: 00-00
2424 Main storage failure
A memory card at the specified location is faulty.
Probability is mandatory.
Record function code 19 from the operator panel. This
function code is the CCIN identifier, which is used to
determine the processor or memory card type. To get the
part number for the failing card, find the CCIN number in
the parts tables under “Electronic Cards” on page 556.
Memory Card, M08
Location: U1.1-P1-M4
AIX Location Code: 00-00
B4xx
222
Service Guide