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Power Distribution

In Figure 16, you can see the power supply label containing all the power specs.

Enermax NAXN 80+ 600 W power supplyFigure 16: Power supply label

This power supply is sold as having two +12 V rails. We could clearly see one “shunt” (current sensor) for each +12 V “rail,” and the monitoring integrated circuit has two +12 V over current protection channels. Click here to understand more about this subject.

The two +12 V rails are distributed like this:

  • +12V1 (solid yellow wire): All cables but the ATX12V/EPS12V
  • +12V2 (yellow/black wires): The ATX12V/EPS12V cable

This distribution is perfect, as it puts the CPU (ATX12V/EPS12V) and the video card in separate rails.

How much power can this unit really deliver? Let’s find out.

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Gabriel Torres is a Brazilian best-selling ICT expert, with 24 books published. He started his online career in 1996, when he launched Clube do Hardware, which is one of the oldest and largest websites about technology in Brazil. He created Hardware Secrets in 1999 to expand his knowledge outside his home country.