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TL-D800C User Guide
Duration
Frequency
Description
• The system fan is not functioning.
Long beep (2 seconds)
3 (every 5
minutes)
• The system temperature is over the threshold.
Note
• The default temperature warning
threshold is 65°C. You can set the
threshold to a temperature
between 55°C and 69°C using
QNAP JBOD Manager.
• The temperature critical threshold
is 70°C.
Fan Speed Switch
The rear panel of the JBOD enclosure includes a fan speed switch for manually configuring the speed of the
system fans.
Fan speed settings:
• Auto
When set, the fan speed changes automatically according to the internal temperature of the JBOD
enclosure.
• High
• Medium
• Low
For details, see Rear Panel.
Basic Operations 22