Clear Cmos; Post Error Indicators - HP ProLiant SL165z G6 Maintenance And Service Manual

Clear CMOS

You may need to clear the Setup configuration values (CMOS) if the configuration has been
corrupted, or if incorrect settings made in the Setup Utility have caused error messages to be
unreadable. Clearing the CMOS data removes the administrator password.
The clear CMOS setting is on clear CMOS button (SW4) on the system board. Refer to the HP
ProLiant SL165z G6 Server Maintenance and Service Guide for the location of this jumper block and
the clear CMOS setting.
To clear CMOS:
1. Perform the pre-installation procedures.
2. If necessary, remove any expansion boards, assemblies, or cables that prevent access to the press CMOS
button (SW4).
3. Locate the clear CMOS button (SW4) on the system board.
4. Press clear CMOS button (SW4) to clear the CMOS memory.
5. Perform the post-installation procedures.
6. During POST, press F10 to access the Setup Utility.
7. Press F9 to load the system default values.
8. Press F10 to save the changes you made and closes the Setup Utility.
NOTE: Clearing CMOS restore all system configurations and password default settings.
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 (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 are accurately isolated during POST. The number of tests displayed depends on the
configuration of the server.
During POST you can:
•
Press ESC to skip the HP logo and go to POST boot progress display system summary screen.
•
Press F10 to access the Setup Utility.
•
Press F12 to request a network boot (PXE).

POST Error Indicators

When POST detects a system failure, it either:
•
Displays a POST error message
•
Emits a series of beep codes (requires an optional expansion board).
Contents 69