Troubleshooting System Cooling Issues - Oracle X8-2L Service Manual

Status Indicator
Processor Fault
Status Indicators
Fault Remind Status
Indicator
STBY PWRGD
Status Indicator

Troubleshooting System Cooling Issues

Maintaining the proper internal operating temperature of the server is crucial to the health of the
server. To prevent server shutdown and damage to components, address over temperature and
hardware-related issues as soon as they occur. If your server has a temperature-related fault, use
the information in the following table to troubleshoot the issue.
Cooling Issue Description
External Ambient The server fans pull cool air into the
Temperature Too server from its external environment.
High If the ambient temperature is too
high, the internal temperature of the
server and its components increases.
This can cause poor performance and
component failure.
Airflow Blockage The server cooling system uses fans
to pull cool air in from the server
front intake vents and exhaust warm
air out the server back panel vents. If
Troubleshoot Hardware Faults Using the Oracle ILOM Web Interface
Description
■ For more information on DIMM fault status indicators and the location of the Fault
Remind button, see "Servicing the DIMMs (CRU)" on page
■ The motherboard includes a fault status indicator (LED) adjacent to each of the two
processor sockets.
■ These LEDs indicate when a processor fails.
■ Pressing the Fault Remind button on the motherboard I/O card signals the service
processor to light the fault status indicators associated with the failed processors.
■ For more information on processor fault status indicators and the location of the Fault
Remind button, see "Servicing Processors (FRU)" on page
■ This status indicator (LED) is located next to the Fault Remind button and is powered
from the super capacitor that powers the fault LEDs on the motherboard.
■ This LED lights to indicate that the fault remind circuitry is working properly in
cases where no components failed and, as a result, none of the component fault LEDs
illuminate.
■ For more information on the fault remind status indicator and the location of the Fault
Remind button, see "Using the Server Fault Remind Button" on page
■ This green status indicator (LED) is labeled STBY PWRGD and is located on the
motherboard near the back of the server.
■ This LED lights to inform a service technician that the motherboard is receiving Standby
power from at least one of the power supplies.
■ This LED is provided to help prevent service actions on the server internal components
while the AC power cords are installed and power is being supplied to the server.
Action
Verify the ambient temperature
of the server space against the
environmental specifications for
the server. If the temperature is not
within the required operating range,
remedy the situation immediately.
Inspect the server front and back
panel vents for blockage from dust
or debris. Additionally, inspect
the server interior for improperly
119.
145.
127.
Prevention
Periodically verify the ambient
temperature of the server space to
ensure that it is within the required
range, especially if you made any
changes to the server space (for
example, added additional servers).
The temperature must be consistent
and stable.
Periodically inspect and clean the
server vents using an ESD certified
vacuum cleaner. Ensure that all
components, such as cards, cables,
Troubleshooting and Diagnostics 35