Server Stops Working (Hangs); Power Problems - HP ProLiant ML150 Operation Manual

Troubleshooting

Server Stops Working (Hangs)

Typically, if the HP server hangs before the end of POST completes, the problem is possibly
a hardware problem or failure. If the HP server hangs after POST completes, the problem is
possibly due to an incorrectly configured or corrupt driver, operating system, or application
program, or a media (disk drive) error.
If the HP server stops working or hangs starting up:
1. Review the Troubleshooting Checklist in this chapter before you continue.
2. Try to verify exactly where the HP server is stopping during POST. For example: is the
HP server stopping at the memory count or a SCSI controller? Look for any error
messages and make note of them for further assistance in troubleshooting the problem.
If the failure persists, verify there is not a hardware problem by running the HP Server
Diagnostics for Windows or checking the Hardware Event log on HP servers that have that
option.
1. If the failure persists, try removing any recently added hardware and check if the problem
still exists. If the problem has disappeared, add one removed hardware component at a
time back into the HP server to try and verify which hardware component is causing the
problem.
For further assistance, contact the HP Customer Support Center before replacing any parts.

Power Problems

NOTE: The HP ProLiant ML150 server supports the ACPI (Advanced Configuration and Power
Management Interface) standard, which is a key component of a NOS's directed power management.
The supported features are only available when an ACPI-compliant NOS is installed on the server.
Refer to Chapter 1 in this manual BEFORE doing any further troubleshooting to verify that the HP
ProLiant ML150 server is not in a sleep mode.
A flashing green power LED indicates the HP ProLiant ML150 server is in a sleep mode.
1. Verify the HP server's power cord is plugged in to a known good power source.
2. Is the On/Off LED on the front of the HP ProLiant ML150 server a steady green, which
indicts it is getting power?
3. Remove the HP server form any UPS or PDU and connect the HP server directly to a
power source.
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HP ProLiant ML150 Server Operations and Maintenance Guide