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Hardware Problems 33
3
When a problem is detected with a fan, the front panel Alarm LED lights up in orange, the
LED of the fan unit in which the error has occurred lights up in orange, and an error is
recorded in the event log. If a fan error occurs, contact the vendor's service department.
When XG700 overheats, the Alarm LED lights up in orange, and a temperature error is
recorded in the event log. In this case, check that the ambient and internal rack temperatures
are within the specified temperature range, adjust them if they are not and try turning the
XG700 back on. When error occurs even though the ambient rack temperatures are accept-
able, turn the XG700 off and contact the vendor's service department.
When a voltage problem is detected, the Alarm LED lights up in orange, and an error is
recorded in the event log. In this case, turn the XG700 off and contact the vendor's service
department.
When a power supply problem is detected, the Alarm LED lights up in orange, the power fail
LED of the power unit in which the error has occurred lights up in orange, and an error is
recorded in the event log. Verify that the AC power supply for the failed power unit is normal
and the cable has not come loose.
If some other reason has caused the power fail LED to light up, contact the vendor's service
department.
Startup diagnostic tests are run after the power is turned. If a memory error is detected at this
stage, the Alarm LED blinks, but an event log entry is not created. If a memory error is
detected during operation, an event log entry is created and the system automatically
reboots. Note that whether or not a memory error results in an event log entry is a matter of
timing.
If memory errors occur repeatedly, contact the vendor's service department.
3-2 Hardware Problems
This section explains what should be done when a fan, temperature, power supply, or memory
error occurs. Contact the vendor's service department when the following errors occurred.
Fan error
Temperature error
Voltage error
Power supply error
Memory error