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Power Distribution

In Figure 22, you can see the power supply label containing all the power specs.

FSP Xilencer 500wFigure 22: Power supply label

The manufacturer advertises this unit as having two +12 V rails, which is correct, since the monitoring integrated circuit has two +12 V over current channels. The two rails are distributed as follows:

  • +12V1 (yellow/black wires): The main motherboard connector, the ATX12V connector, the SATA connectors, and the peripheral connectors
  • +12V2 (solid yellow wires): The video card power connectors and the second half of the EPS12V connector

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.