IBM 9228 Service Guide - Page 107

customer replaceable units CRU and which components are field replaceable units FRU.

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Table 6. POST beep codes (continued) 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 9228 and 9232," 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 1-3-1 First 64 Kb RAM test has failed. 1. Reseat the DIMM. 2. Replace the lowest-numbered pair of DIMMs with an identical good pair of DIMMs; then, restart the computer. If the beep code error remains, go to step 3. Return one DIMM at a time from the failed pair that you removed earlier back into its connector, restarting the computer after each DIMM, to identify the failed DIMM. 3. Replace the following components one at a time, in the order shown, restarting the computer each time: a. DIMMs b. (Trained service technician only) System board 2-1-1 Secondary DMA register test has failed. (Trained service technician only) Replace the system board. 2-1-2 Primary DMA register test has failed. (Trained service technician only) Replace the system board. 2-1-3 Primary interrupt mask register test has failed. (Trained service technician only) Replace the system board. 2-1-4 Secondary interrupt mask register test has failed. (Trained service technician only) Replace the system board. 2-2-2 Keyboard controller test has failed. 1. Reseat the keyboard cable. 2. Replace the following components one at a time, in the order shown, restarting the computer each time: a. Keyboard b. (Trained service technician only) System board 2-2-3 CMOS power failure and checksum checks have failed. 1. Reseat the battery. 2. Clear CMOS. See "Erasing a lost or forgotten password (clearing CMOS)" on page 145 for information about how to clear CMOS. 3. Replace the following components one at a time, in the order shown, restarting the computer each time: a. Battery b. (Trained service technician only) System board Chapter 5. Diagnostics 89

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Table 6. POST beep codes (continued)
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 9228 and 9232,” 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
1-3-1
First 64 Kb RAM test has failed.
1.
Reseat the DIMM.
2.
Replace the lowest-numbered pair of
DIMMs with an identical good pair of
DIMMs; then, restart the computer. If the
beep code error remains, go to step 3.
Return one DIMM at a time from the
failed pair that you removed earlier back
into its connector, restarting the
computer after each DIMM, to identify
the failed DIMM.
3.
Replace the following components one
at a time, in the order shown, restarting
the computer each time:
a.
DIMMs
b.
(Trained service technician only)
System board
2-1-1
Secondary DMA register test has failed.
(Trained service technician only) Replace
the system board.
2-1-2
Primary DMA register test has failed.
(Trained service technician only) Replace
the system board.
2-1-3
Primary interrupt mask register test has
failed.
(Trained service technician only) Replace
the system board.
2-1-4
Secondary interrupt mask register test has
failed.
(Trained service technician only) Replace
the system board.
2-2-2
Keyboard controller test has failed.
1.
Reseat the keyboard cable.
2.
Replace the following components one
at a time, in the order shown, restarting
the computer each time:
a.
Keyboard
b.
(Trained service technician only)
System board
2-2-3
CMOS power failure and checksum checks
have failed.
1.
Reseat the battery.
2.
Clear CMOS. See “Erasing a lost or
forgotten password (clearing CMOS)” on
page 145 for information about how to
clear CMOS.
3.
Replace the following components one
at a time, in the order shown, restarting
the computer each time:
a.
Battery
b.
(Trained service technician only)
System board
Chapter 5. Diagnostics
89