Power-On Self Test (Post) - HP ProLiant DL145 Maintenance And Service Manual

Diagnostic Tools
To clear CMOS:
1. Remove the PCI riser board assembly following the procedures described on page 3-37.
2. If necessary, remove any accessory boards or cables that prevent access to the system
configuration switch.
3. Locate the system configuration switch (SW2) on the system board.
4. Identify SW2-2 of the switch.
By default, SW2-2 is set to the Off position.
5. Set SW2-2 to the On position.
This will clear the CMOS memory.
6. Switch SW2-2 back to its default Off position.
7. Perform the post-installation procedures described on page 3-6.
8. During POST, press F10 to access the Setup Utility.
9. Press F9 to load the system default values.
10. Press F10 to save the changes you made and close the Setup Utility.

Power-On Self Test (POST)

When the server boots up, a series of tests are displayed on the screen. This is referred to as
Power–On Self–Test or POST. POST is a series of diagnostic tests that checks firmware and
assemblies 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
3-12
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HP ProLiant DL145 Generation 2 Server Maintenance and Service Guide