IBM 7940, Руководство по диагностике и обслуживанию

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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 7940 and 7941 servers,” on page 19 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 Description Action
3-1-3 RAM test failed above address 0FFFFh.
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
3-1-4 Time-of-day clock failed.
1. Reseat the battery.
2. Replace the following components one at a
time, in the order shown, restarting the
server each time:
a. Battery
b. (Trained service technician only) System
board
3-2-1 Serial port failed. (Trained service technician only) Replace the
system board.
3-2-4 Failure comparing CMOS memory size
against actual.
1. Reseat the following components:
a. DIMMs
b. Battery
2. Replace the following components one at a
time, in the order shown, restarting the
server each time:
a. DIMMs
b. Battery
c. (Trained service technician only) System
board
3-3-1 Memory size mismatch occurred.
1. Verify that both DIMMs in the bank are of
the same size, speed, type and technology.
2. Reseat the following components:
a. DIMMs
b. Battery
3. Replace the following components one at a
time, in the order shown, restarting the
server each time:
a. DIMMs
b. Battery
c. (Trained service technician only) System
board
Chapter 5. Diagnostics
71