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8. Fan Speed Adjustment
There are four hot-swappable 120×120×25 mm cooling fans in the front and in the rear of
the NS780TB3 enclosure for ventilation. The cooling fan can simply be drawn out of the
enclosure by pulling the L type metal handle on the fan module.
•
The front two fans
The front 120×120×25 mm cooling fan speed can be adjusted. Pull out the fan module,
there are four sets of jumpers labeled with 6V, 8V, 10V, 12V from top to bottom on the
fan connector board. The default setting is the jumper being placed over pin 7 and 8
for label 6V for slowest speed. The speed increases from label 8V to label 12V. As
jumper is not placed over pins, the fan will spin at 12V full speed.
6V
8V
12V
10V
