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Old 05-22-2019, 11:46 AM   #3
Quadcammer
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Join Date: Dec 2016
Location: Clifton, NJ
Posts: 1,135
simple, find the correct yellow wire for high speed fans

Use a three prong switch.

1. prong to ground.
2. incoming yellow wire
3. outgoing yellow wire

In switch position 1, the fan operates via computer's instruction based on coolant temp.
In switch position 2, fan is off entirely
In switch position 3, fan is on full time.

pretty straightforward operation.
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