IBM IntelliStation M Pro 6218, Problem Determination And Service Manual

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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 Action
3-1-4 Time-of-day clock test has failed.
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
3-2-1 Serial port test has failed. (Trained service technician only) Replace
the system board.
3-2-2 Parallel port test has failed. (Trained service technician only) Replace
the system board.
3-3-1 A memory size mismatch has occurred.
1. Reseat the following components:
a. DIMM
b. Battery
2. Replace the following components one
at a time, in the order shown, restarting
the computer each time:
a. DIMM
b. Battery
c. (Trained service technician only)
System board
3-3-2 A critical SMBUS error occurred (I2C bus has
failed).
1. Disconnect the power cord, wait 30
seconds, and retry.
2. Reseat the following components:
a. DIMM
b. (Trained service technician only)
Microprocessor
3. Replace the following components one
at a time, in the order shown, restarting
the computer each time:
a. DIMM
b. (Trained service technician only)
Microprocessor
c. (Trained service technician only)
System board
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IBM IntelliStation M Pro Type 6218 and 9236: Problem Determination and Service Guide