10
4. Blower Fan Speed Adjustment
1. There are two hot-swappable 75×75×28 mm blower fans for ventilation at
rear of NS372TB3. After loosening the two thumbscrews on the fan module,
the blower fan can be pulled out of the storage enclosure.
2. The rear 75×75×28 mm blower fan speed can be adjusted. As the blower
fan module is pulled out, 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
10V
12V