IBM x3550 Problem Determination And Service Manual page 119

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, Type 7978 and 1913 server," on page 29 to determine which components are
CRUs and which components are FRUs.
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Beep code
1-3-1
1-3-2
2-1-1
2-1-2
2-1-3
2-1-4
2-2-2
2-2-3
Description
1st 64K RAM test failed.
1st 64K RAM parity test failed.
Secondary DMA register failed.
Primary DMA register failed.
Primary interrupt mask register failed.
Secondary interrupt mask register failed.
Keyboard controller failed.
CMOS power failure and checksum
checks failed.
Action
1. Reseat the DIMMs.
2. Replace the lowest-numbered pair of
DIMMs with an identical known good pair
of DIMMs; then, restart the server. If the
beep code error remains, go to 3b. Return
one DIMM at a time from the failed pair to
its connector, restarting the server after
each DIMM, to identify the failed DIMM.
3. Replace the following components, one at
a time, in the order shown:
a. DIMMs
b. (Trained service technician only)
System board
1. Reseat the DIMMs.
2. Replace the following components, one at
a time, in the order shown:
a. DIMMs
b. (Trained service technician only)
System board
(Trained service technician only) Replace the
system board.
(Trained service technician only) Replace the
system board.
(Trained service technician only) Replace the
system board.
(Trained service technician only) Replace the
system board.
Replace the following components, one at a
time, in the order shown, restarting the server
each time:
1. Keyboard
2. (Trained service technician only) System
board
1. Reseat the system-board battery.
2. Clear CMOS. See "System-board switches
and jumpers" on page 11 for more
information about how to clear CMOS.
3. Replace the following components, one at
a time, in the order shown, restarting the
server each time:
a. System-board battery
b. (Trained service technician only)
System board
Chapter 5. Diagnostics
101