Troubleshooting Hardware Faults Using Oracle ILOM
Action
: Investigate the cause of the over-temperature event, and replace failed components
immediately
. For hardware troubleshooting information, see
“Troubleshooting Server Hardware
Prevention
: Component redundancy is provided to a allow for component failure in critical
subsystems, such as the cooling subsystem. However, once a component in a redundant
system fails, the redundancy no longer exists, and the risk for server shutdown and component
failures increases. Therefore, it is important to maintain redundant systems and replace failed
components
immediately
.
Troubleshooting Power Issues
If your server does not power on, the cause of the problem might be one of the following:
■
“AC Power Connection” on page 54
■
“Power Supplies (PSUs)” on page 55
■
AC Power Connection
The AC power cords are the direct connection between the server power supplies and the power
sources. The server power supplies need separate stable AC circuits. Insufficient voltage levels
or fluctuations in power can cause server power problems. The power supplies are designed to
operate at a particular voltage and within an acceptable range of voltage fluctuations (see the
Installation Guide
). A four-CPU configured server needs to operate at 200-240 VAC, while
a two-CPU configured server can operate at either 100-127 VAC or 200-240 VAC. For more
information about the processor subsystem, see
“Processor Subsystem” on page 22
Action
: Check that both AC power cords are connected to the server and check that the correct
power is present at the outlets. If necessary, monitor the power to verify that it is within the
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