In Figure 16, you can see the power supply label containing all the power specs.
This power supply features four +12 V virtual rails distributed like this:
- +12V1: SATA and peripheral power connectors (modular cabling system) and main motherboard connector.
- +12V2: ATX12V/EPS12V connectors.
- +12V3: One of the auxiliary video card power connectors (modular cabling system).
- +12V4: The other auxiliary video card power connector (modular cabling system).
We think this distribution is perfect.
Now let’s see if this power supply can really deliver 550 W.