Compaq ProLiant ML350 Maintenance And Service Manual page 68

Table 3-2
POST Error Messages
continued
Error Code Audible Beeps
301-Keyboard None
Error or Test
Fixture Installed
ZZ-301-Keyboard None
Error
303-Keyboard None
Controller Error
304-Keyboard or None
System Unit Error
40X-Parallel 2 short
Port X Address
Assignment
Conflict.
Probable Source of Action
Problem
Keyboard failure Replace the keyboard.
occurred.
Keyboard failure 1.
occurred. (ZZ
2.
represents the
Keyboard Scan
Code.)
System board, 1.
keyboard, or mouse
2.
controller failure
occurred.
Keyboard, keyboard 1.
cable, or system
board failure.
2.
3.
Both external and Run the server setup utility and correct.
internal ports are
assigned to Parallel
Port X.
Diagnostics and Troubleshooting 3-13
A key is stuck. Try to free it.
Replace the keyboard.
Run Diagnostics.
Replace failed assembly as
indicated.
Make sure the keyboard is
attached.
Run Diagnostics.
Replace the indicated part.
continued