IBM IntelliStation M Pro 6218 Problem Determination And Service Manual page 29

Table 2. 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," on page 65 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
2-1-1 Secondary DMA register test has failed.
2-1-2 Primary DMA register test has failed.
2-1-3 Primary interrupt mask register test has
failed.
2-1-4 Secondary interrupt mask register test has
failed.
2-2-2 Keyboard controller test has failed.
2-2-3 CMOS power failure and checksum checks
have failed.
2-4-1 Video failed; system believed operable.
3-1-1 Timer tick interrupt test has failed.
3-1-2 Interval timer channel 2 test has failed.
3-1-3 RAM test has failed above address 0FFFFh.
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.
(Trained service technician only) Replace
the system board.
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
1. Reseat the battery.
2. 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
1. Reseat the video adapter.
2. Replace the following components one
at a time, in the order shown, restarting
the computer each time:
a. Video adapter
b. (Trained service technician only)
System board
(Trained service technician only) Replace
the system board.
(Trained service technician only) Replace
the system board.
1. Reseat the DIMM.
2. Replace the following components one
at a time, in the order shown, restarting
the computer each time:
a. DIMM
b. (Trained service technician only)
System board
Chapter 2. Diagnostics
13