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