5. Drill the upper left rubber hole with a 4mm diameter drill bit and the
fan's wire pass-through hole with a 5mm diameter bit. Use a rubber grommet to
protect the cable and place the four rubber spacers within the grid:
![](images/G90_fan_mod_image06.jpg)
6. Place the fan on the rubber spacers and place the fan wires through the grid
plate:
![](images/G90_fan_mod_image07.jpg)
7.
At this stage, update the SilenX white connector housing wiring and shape it to
fit the PA board connector by swapping the +12V and SENSE (French for
"Rotation") wires inside the
housing to correspond to the Sony wiring:
![](images/G90_fan_mod_image08.jpg)
Turn the fan connector upside down and cut the two tables on the SilenX white
connector housing with a cutter. With a small metal saw, make two slots in the
white plastic housing:
![](images/G90_fan_mod_image08a.jpg)
Connect the SilenX connector to the PA board connector as shown:
![](images/G90_fan_mod_image08b.jpg)
Then reconnect all the others connectors back in their place:
![](images/G90_fan_mod_image08c.jpg)
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