IBM 9228 - IntelliStation Z - Pro Installation Manual page 41

Table 2. 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 part 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
301 and 303 An error occurred during the keyboard and
keyboard controller test. These error
messages also might be accompanied by
continuous beeping.
602 An invalid diskette boot record error
occurred.
604 An error occurred during a diskette drive
test.
Action
1. If you just connected a new mouse or other
pointing device, turn off the computer and
disconnect that device. Wait at least 5 seconds;
then, turn on the computer. If the error message
goes away, replace the device.
2. Make sure that nothing is resting on the keyboard
or pressing on a key.
3. Make sure that no key is stuck.
4. Reseat the keyboard cable and make sure that it is
connected to the correct connector on the
computer.
5. After installing a USB keyboard, run the
Configuration/Setup Utility program to enable
keyboardless operation and prevent the POST
error message from being displayed during startup.
6. Run the diagnostic tests to isolate the computer
component that failed.
7. 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 diskette drive cable.
2. Replace the following components one at a time,
in the order shown, restarting the computer each
time:
a. Diskette drive cable
b. Diskette drive
c. (Trained service technician only) System board
1. Make sure that the Configuration/Setup Utility
program correctly reflects the type of diskette drive
that is installed.
2. Reseat the diskette drive cable.
3. Replace the following components one at a time,
in the order shown, restarting the computer each
time:
a. Diskette drive cable
b. Diskette drive
c. (Trained service technician only) System board
Chapter 5. Solving problems
29