IBM 306m - eServer xSeries - 8849, Problem Determination And Service Manual

Page: 79 / 144

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 8849 and Type 8491 server,” 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
2-1-2 Primary DMA register failed. (Trained service technician only) Replace the
system board.
2-1-3 Primary interrupt mask register failed. (Trained service technician only) Replace the
system board.
2-1-4 Secondary interrupt mask register failed. (Trained service technician only) Replace the
system board.
2-2-2 Keyboard controller failed. 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.
2-2-3 CMOS power failure and checksum
checks failed.
1. Reseat the battery.
2. Clear CMOS, see “System-board switches
and jumpers” on page 7
3. 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
3-1-4 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
Chapter 5. Diagnostics
63