A Closer Look

The Seasonic S12-600 enclosure is painted matte-black and uses one large 120mm fan on the bottom side for cooling.  The fan speed is dynamically adjusted based on power supply load and temperature (the Smart and Silent Fan Control feature).  An external fan speed signal wire is provided, which can be plugged into a standard motherboard 3-pin fan header to monitor the power supply’s fan speed.

 

The five bladed fan is manufactured by Yate Loon Electronics (D12BH-12) and is capable of moving a relatively large amount of air with minimal noise.  The open honeycomb grill on the back of the S12-600 presents minimal restriction to the flow of exhaust air.

 

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Here are a few more pictures showing the layout and components inside the S12-600 PSU.

 

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The Seasonic S12-600 comes with a wealth of power connectors and incorporates the quick release style of 4-pin drive connectors.  The wiring harnesses measure approximately 19′ long to the first connector.

 

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  • Main power connector (24-pin)
  • ATX 12V (4-pin)
  • PCI Express 12V (6-pin)
  • Dual CPU 12V (8-pin)
  • (6) Peripheral Optical/HDD (4-pin)
  • (2) Peripheral FDD (4-pin)
  • (4) Peripheral Serial ATA (15-pin)
  • Fan speed signal (3-pin)

 

To help distribute the dual output +12V power, the S12-600 comes with three 12V connectors in addition to the main 24-pin power connector.  There is a standard ATX 12V P4 connector, a new 6-pin connector for PCI Express, and an 8-pin connector used by some dual processor and/or server class motherboards.

 

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Seasonic includes a 24-pin to 20-pin adapter cable and a 4-pin Molex to 3-pin fan header cable with the power supply.  Note the fan cable has three, 3-pin connectors attached: one of them provides 12V (yellow wire) and two of them provide 5V (red wires) for low speed, silent fan operation.

 

Seasonic also includes a package of plastic spiral wrap, wire ties and a wiring harness clip that they refer to as the Dr. Cable wire management kit.

 

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