Power-On-Self-Test - HP ProLiant ML110 G6 Maintenance And Service Manual

Power-On-Self-Test

Before you can use a server, all devices must be tested and initialized, and the operating system must
be bootstrapped to the memory. This is referred to as Power-On-Self-Test or POST. POST is a series of
diagnostic tests that checks firmware and hardware components to ensure that the server is properly
functioning. This diagnostic function automatically runs each time the server is powered on.
These diagnostics, which reside in the BIOS ROM, isolate server-related logic failures and indicate the
board or component that needs to be replaced, as indicated by the error messages. Most server
hardware failures will be accurately isolated during POST. The number of tests displayed depends on
the configuration of the server.
POST error indicators
When POST detects a system failure, it either displays a POST error message, or emits a series of
beep codes.
POST errors messages
Whenever a non-critical error occurs during POST, an error message describing the problem appears
onscreen. These text messages are displayed in normal video (white text on black background). It
shows the details of the error. The following is an example of a POST error message:
ERROR
0251: System CMOS checksum bad – Default configuration used
In some cases an error message may include recommendations for troubleshooting or require that you
press the Enter key to display recommendations. Follow the instructions on the screen.
The next table lists the most common POST error messages with their corresponding troubleshooting
recommendation. It is recommended that you correct the error before proceeding, even if the server
appears to boot successfully.
If your system displays one of the messages marked below with an asterisk (*), write down the code
and message and contact your HP Customer Support provider.
When no POST error message is displayed but the server stops during POST, listen for beep codes.
Error code
0200
0210
0211
0212
Error message
Failure Fixed Disk
Stuck key
Keyboard error
Keyboard Controller Failed
Corrective action/description
Fixed disk is not working or not configured properly.
1
Run Setup and check if the fixed-disk type is correctly identified.
2
Check to see if the fixed disk is attached properly.
Stuck key on keyboard.
1
Locate the stuck key on your keyboard and release it.
2
Reboot the server.
Keyboard not working.
Verify that the keyboard cable is securely connected to the
keyboard port (not the mouse port) on the rear panel of the
server.
If the problem persists, replace the keyboard or contact your HP
Customer Support provider.
Keyboard controller failed test.
Diagnostics tools 97