IBM x3400 7975 Problem Determination And Service Manual page 45

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, System x3400 Types 7973, 7974, 7975 and 7976," on page 87 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
301 Keyboard or keyboard controller error.
303 Keyboard controller failure.
1600 The service processor is not functioning.
Note: Depending on which device is
installed, the service processor is the
optional Remote Supervisor Adapter II
SlimLine or the BMC.
1604 Machine type mismatch.
Action
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.
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
1. Reseat the keyboard.
2. Replace the keyboard.
3. (Trained service technician only) Replace the
system board.
1. If the optional Remote Supervisor Adapter II
SlimLine is installed:
a. Update the Remote Supervisor Adapter II
SlimLine firmware.
b. Replace the Remote Supervisor II SlimLine.
2. Update the BMC firmware (see "Updating the
firmware" on page 165).
3. (Trained service technician only) Replace the
system board.
1. Run the Configuration/Setup Utility program,
select Load Default Settings, and save the
settings.
2. Update the BIOS code and BMC firmware (see
"Updating the firmware" on page 165).
3. (Trained service technician only) Replace the
system board.
27
Chapter 2. Diagnostics