IBM Eserver xSeries 360 Type 8686, Installation Manual

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IBM xSeries 360 Type 8686:Installation Guide
POST beep code descriptions
POST emits one beep to signal successful completion. If POST detects a problem
during startup, other beep codes might occur. You can use the following abbreviated
list of beep code descriptions to help identify and resolve problems that are detected
during startup.
Note: See the solving problems section in the User’s Reference on the xSeries 360
Documentation CD for a complete list of POST beep codes.
No beep
If no beep occurs after the server completes POST, call for service.
Continuous beep
The startup (boot) microprocessor has failed, or the system board or speaker
subsystem might contain a failing component. If the system continues
through POST with no errors, call for service. If no video appears, the startup
microprocessor has failed; have the system serviced.
One short beep
One beep indicates that the server successfully completed POST and that
POST did not detect any configuration or functional errors. One beep also
occurs after the server completes POST if you type an incorrect power-on
password.
Two short beeps
POST encountered an error. The Configuration/Setup Utility program dis-
plays additional information; follow the instructions that appear on the screen.
See “POST error messages” on page 35 for descriptions of the text messages
that might appear.
Three short beeps
A system-memory error has occurred. This combination occurs only if the
video basic input/output system (BIOS) code cannot display the error mes-
sage. Replace the failing memory module.
Repeating short beeps
The system board might contain a failing component, the keyboard might be
defective, or a key on the keyboard might be stuck. Ensure that:
• Nothing is resting on the keyboard and pressing a key.
• No key is stuck.
• The keyboard cable is connected correctly to the keyboard and to the cor-
rect connector on the server.
Running the diagnostic tests can isolate the server component that failed, but
you must have the system serviced. If the error code persists, call for service.
Note: If you just connected a new mouse or other pointing device, turn off the
server and disconnect that device. Wait at least 5 seconds; then, turn
on the server. If the error code does not occur, replace the device.
One long and one short beep
POST encountered an error on the video adapter. Call for service.
One long and two short beeps
The video I/O adapter ROM is not readable, or the video subsystem is defec-
tive. This beep combination might also indicate that the system board con-
tains a failing component.
One long and three short beeps
The video subsystem has not detected a monitor connection to the server.
Ensure that the monitor is connected to the server. If the problem remains,
replace the monitor.