Taming the
Cisco Nexus 9000

1. Observe the respective color codes of the Cisco and the Noctua fan harnesses:

2. Join the three black GND wires from the Cisco self-aligning connector to the black GND wire from the Noctua pigtail, using an appropriate junction twist.

Flux and solder the junction.

3. Heat-shrink the soldered black GND wire junction.

4. Twist, flux, and solder the red lead from the Cisco harness together with the yellow lead from the Noctua pigtail. Heat-shrink the junction.

4. Twist, flux, and solder the brown lead from the Cisco harness together with the blue lead from the Noctua pigtail. Heat-shrink the junction.

5. The Cisco harness is now correctly soldered to the Noctua pigtail, noting two black GND wires from the Cisco self-aligning plug and one black GND wire from the frame grounding terminal.

The white and purple wires from the Cisco self-aligning connector should remain unconnected.

6. Slide one of the two pieces of heat-shrink tubing reserved from the Noctua pigtail over the combined junctions between the Cisco harness and the Noctua pigtail, making sure the Noctua jacket extends under the heat-shrink tubing. Tuck the cut ends of the unused purple and white wires into the heat-shrink tubing as well, to kepe them out of the way.

Slide the other piece of heat-shrink tubing over the end of the jacket at the plug end of the Noctua pigtail. Apply heat to the remaining heat-shrink tubing.

7. Sixth checkpoint: the modified harness is now complete.

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