Enermax Platimax 850 W Power Supply Review

Power Distribution

In Figure 19, you can see the power supply label containing all the power specs.

Figure 19: Power supply label

This power supply is advertised as having four +12 V rails, which is correct, since the monitoring integrated circuit has four +12 V over current (OCP) channels, and we clearly saw
four current sensors (“shunts”) on the solder side of the printed circuit board. See Figure 20. Click here to understand more about this subject.

Figure 20: Shunts

The four +12 V rails are distributed as follows:

• +12V1: ATX12V/EPS12V connectors and the main motherboard cable
• +12V2: The red modular cabling connector that is the closest to the black connectors and the black connectors closest to the red connectors
• +12V3: The middle red modular cabling connector and the black connectors that are the farthest away from the red connectors
• +12V4: The red modular cabling connector that is the farthest away from the black connectors and the video card power cables that are permanently attached to the power supply

For a better load distribution, we recommend that you do not use the red connector that is connected to the +12V4 rail.

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