HP Integrity rx1620 Installation Guide, Second Edition - HP Integrity rx1620 - Page 50

The system LED or diagnostic LEDs are not on and no error messages appear.

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Troubleshooting Possible Problems Step 8. Reseat the main memory DDR DIMMs. Step 9. If date and time or customer settings are being cleared, the system board battery may need to be replaced. The system LED or diagnostic LEDs are not on and no error messages appear. If the server does not work, with no LEDs illuminated and no error messages appearing, check the following: Step 1. Make sure that all cables and the AC power cord are plugged into their proper receptacles. Step 2. Make sure that the AC outlet is working. If the server is plugged into a switched multiple-outlet box, make sure that the switch on the outlet box is turned on. Step 3. Make sure that the server is turned on (the power-on light should be green and the fans should be on). Step 4. Turn the server off, wait at least twenty seconds, then turn the server back on to see if the failure can be cleared. Step 5. Make sure that all boards are installed properly and the processors are installed in the correct slot. They must be seated firmly in their slots and any cables must be connected firmly. Step 6. If the server stopped working after you installed a new board, remove the board and turn on the server. If your server now works, check the installation instructions received with the new board for correct installation method. If the new board is preventing the server from powering on, it is likely to have a serious electrical problem. Step 7. If the server still does not work, remove all boards and options that you have installed (do not remove the hard disk drives) and turn on the server. Step 8. Add the boards and options one at a time to determine which one is causing the problem. Step 9. If you have added any memory, make sure that the DDR DIMMs are seated properly in the board. Also check the DDR DIMM configuration, and that the DDR DIMMs are matched pairs. Power goes off on the server and doesn't come back on. When certain critical conditions exist, the server shuts down all power. The critical conditions that may shut down the server are: • critical temperature fluctuations or changes • voltage problems (external AC line) • power supply failure If the server powers off, and before you try a restart, do the following: Step 1. Examine the display panel LEDs for warning or fault indications. The system LED will be flashing yellow with a warning indication and flashing red with a fault indication. Step 2. Examine the four diagnostic LEDs for indications of specific warning or fault indications. The diagnostic LEDs present patterns that categorize the source of the warning or fault. Step 3. Display and examine the system event log (SEL) and forward progress log (FPL) for further information relating to warning or fault indication. 50 Chapter 4

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Chapter 4
Troubleshooting
Possible Problems
50
Step 8.
Reseat the main memory DDR DIMMs.
Step 9.
If date and time or customer settings are being cleared, the system board battery may need to be
replaced.
The system LED or diagnostic LEDs are not on and no error messages appear.
If the server does not work, with no LEDs illuminated and no error messages appearing, check the following:
Step 1.
Make sure that all cables and the AC power cord are plugged into their proper receptacles.
Step 2.
Make sure that the AC outlet is working. If the server is plugged into a switched multiple-outlet
box, make sure that the switch on the outlet box is turned on.
Step 3.
Make sure that the server is turned on (the power-on light should be green and the fans should be
on).
Step 4.
Turn the server off, wait at least twenty seconds, then turn the server back on to see if the failure
can be cleared.
Step 5.
Make sure that all boards are installed properly and the processors are installed in the correct slot.
They must be seated firmly in their slots and any cables must be connected firmly.
Step 6.
If the server stopped working after you installed a new board, remove the board and turn on the
server. If your server now works, check the installation instructions received with the new board for
correct installation method. If the new board is preventing the server from powering on, it is likely
to have a serious electrical problem.
Step 7.
If the server still does not work, remove all boards and options that you have installed (do not
remove the hard disk drives) and turn on the server.
Step 8.
Add the boards and options one at a time to determine which one is causing the problem.
Step 9.
If you have added any memory, make sure that the DDR DIMMs are seated properly in the board.
Also check the DDR DIMM configuration, and that the DDR DIMMs are matched pairs.
Power goes off on the server and doesn't come back on.
When certain critical conditions exist, the server shuts down all power.
The critical conditions that may shut down the server are:
•
critical temperature fluctuations or changes
•
voltage problems (external AC line)
•
power supply failure
If the server powers off, and before you try a restart, do the following:
Step 1.
Examine the display panel LEDs for warning or fault indications. The system LED will be flashing
yellow with a warning indication and flashing red with a fault indication.
Step 2.
Examine the four diagnostic LEDs for indications of specific warning or fault indications. The
diagnostic LEDs present patterns that categorize the source of the warning or fault.
Step 3.
Display and examine the system event log (SEL) and forward progress log (FPL) for further
information relating to warning or fault indication.