HP server rx4610 Service Manual page 67

Chapter 5
The top PWR LED glows a steady green when the HP Server's DC power has been
∗
switched on.
The PWR LED will blink green, if the DC power is switched off, but AC power is properly
∗
connected.
3. If the PWR LED on any power supply is not a steady green, reseat the power supply.
4. You can release the lever and then reset it, or remove the power supply from the HP Server.
5. If all power supply LEDs are still blinking green, the HP Server might be in a sleep state.
Refer to your NOS's instructions concerning sleep states.
6. Check that the boards are properly seated.
7. Check that the Server Management Cable is properly connected to the Power Distribution
Board and the Legacy I/O Board.
8. Check that the DC-DC Converters are properly seated.
If the HP Server System Fans Come on but then Shutdown After 5 Seconds
Use these steps to check for system fan related problems:
1. Check for Memory Board DC-DC Converter failure:
DC-DC converters are installed in a valid configuration.
DC-DC converters are of the proper voltages.
2. Check the embedded regulator on the Processor Baseboard for failure.
3. Check that the DC-DC Converter on the Power Distribution Board is properly installed.
4. Check that the DC-DC Converter on the I/O Baseboard is plugged into the 3.3V number one
connector.
5. Check for a Power Pod failure on a Processor.
If the HP Server Powers On but then Shuts Down with a Fault Light
Use this checklist to check for the following problems when the HP Server powers on and then off:
1. Check that a conductive item has not been dropped or left inside the server chassis.
2. Check the connections on all boards and DC-DC Converters.
3. Check the cables for bent pins.
4. Check the processors for bent pins.
If the HP Server Powers On but Fails POST (Power-On Self Test)
Use this checklist to check for the following problems when the HP Server fails POST:
1. Attempt a recovery boot.
2. Verify that the FSB to CPU core ratio is properly set for the processors. Do not overclock.
3. Clear CMOS and see if the HP Server boots.
Check the HP Server's reference label for instructions on clearing CMOS.
4. If the monitor is working, check the POST pass code it displays.
If the code is between #0 and 3Ah, and the code does not change,
Swap out the Legacy I/O Board and reboot the HP Server.
If the Server still does not boot, swap out the Processor Baseboard and attempt to reboot.
c. Finally, reseat the HP Server's memory boards and then reboot the HP Server.
Troubleshooting
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