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The default setting is the jumper being placed over pin 9 and pin 10 for label 4, meaning
the slowest speed of fan. The fan speeds increase from label 3 to label 1. When the
jumper is placed over pin 1 and pin 2 for label F, the fan spins at full speed. If all the
pins are open (no jumper being placed over the pins), the fan will not spin.
•
The rear two fans
To adjust the fan speeds, pull the rear fan module out of the enclosure. There are
five sets of jumpers labeled with 4, 3, 2, 1, F sequentially from top to bottom on
the fan connector board.
4
(default)
3
1
F
2
