Table 4. Abbreviated list of POST error 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 the parts listing in the Problem Determination and Service Guide 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.
Error code Description Action
289 A failing DIMM was disabled. 1. Make sure that the DIMM is
installed correctly (see
“Installing a memory module”
on page 9).
2. Reseat the DIMM.
3. Replace the DIMM.
301 Keyboard and keyboard controller
error.
1. If you have installed a USB
keyboard, run the
Configuration/Setup Utility
program and enable
keyboardless operation to
prevent the POST error
message 301 from being
displayed during startup.
2. Reseat the keyboard cable in
the connector.
3. Replace the following
components one at a time, in
the order shown, restarting the
server each time:
a. Keyboard
b. (Trained service technician
only) System board
303 Keyboard controller error. 1. Reseat the keyboard cable in
the connector.
2. Replace the following
components one at a time, in
the order shown, restarting the
server each time:
a. Keyboard
b. (Trained service technician
only) System board
1162 Serial port error. 1. Run the Configuration/Setup
Utility program and make sure
that the serial port settings are
correct.
2. (Trained service technician
only) Replace the system
board.
32 IBM System x3250 Types 4364 and 4365: Installation Guide