Enermax NAXN 82+ 550 W Power Supply Review

Power Distribution

Figure 17 shows the power supply label containing all the power specs.

Figure 17: Power supply label

This power supply has two +12 V virtual rails, as we could confirm by the presence of two “shunts” (current sensors) and the presence of two +12 V over current protection channels. Click here to understand more about this subject.

The two +12 V rails are distributed as follows:

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

This is the typical configuration used on power supplies with two rails.

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