IBM xSeries 306m Problem Determination And Service Manual page 79

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
2-1-2
2-1-3
2-1-4
2-2-2
2-2-3
3-1-4
Description
Primary DMA register failed.
Primary interrupt mask register failed.
Secondary interrupt mask register failed.
Keyboard controller failed.
CMOS power failure and checksum
checks failed.
Time-of-day clock failed.
Action
(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 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
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