IBM x3655 - System - 7985 Service Manual page 127

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 4, "Parts listing, System x3655, Type 7985," on page 97 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.
Beep code
1-3-1
1-3-2
2-1-1
2-1-2
2-1-3
2-1-4
2-2-1
2-2-2
Description
First 64K RAM test failed.
First 64K RAM parity test failed.
Secondary DMA register failed.
Primary DMA register failed.
Primary interrupt mask register failed.
Secondary interrupt mask register failed. (Trained service technician only) Replace the
Interrupt vector loading failed.
Keyboard controller 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, restarting the
server each time.
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, restarting the
server each time.
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.
system board.
(Trained service technician only) Replace the
system board.
1. Reseat the keyboard.
2. Replace the following components one at a
time, in the order shown, restarting the
server each time.
a. Keyboard
b. (Trained service technician only) System
board
Chapter 5. Diagnostics
109