Nexus NX-4000 PSU

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For those who like to examine labels, here's the one for the NX-4000:

The photos with the cover removed show massive aluminum heatsinks:

Note that the main printed circuit board is so densely packed that additional circuitry was moved to two smaller PCBs mounted vertically on opposite sides of the main PCB, and a third vertical PCB behind the power switch. On the photo below, a green headed thermistor can be seen glued and clamped to the edge of the heatsink. One presumes this is the thermistor in the fan speed control circuit.


There are a total of 7 wire sets:

  • 3 cables, 16" long, each with a single 4-pin IDE drive connector
  • 1 cable, 20" long, with one 4-pin IDE drive connector and one floppy drive power connector
  • 1 cable, 20" long, with two 4-pin IDE drive connectors
  • 20" long cable for main 20-pin ATX connector
  • 20" long cable for dual 12V (P4) connector
  • 3.3V connector on another 20" wire set.

Three of the cables terminate in one 4-pin connector each. None of the cables are very long (generally a good thing for standard size PCs), and all are close to the same length.

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