•For a fully configured system, we recommend that you use a power supply unit (PSU) that complies with ATX 12V Specification 2.0 (or later version) and provides a minimum power of 550 W.

•Do not forget to connect the 4-pin ATX12V power plug; otherwise, the system will not boot.

•If you are uncertain about the minimum power supply requirement for your system, refer to the Recommended Power Supply Wattage Calculator at http://support.asus.com/PowerSupplyCalculator/PSCalculator. aspx?SLanguage=en-us for details.

•Use of a PSU with a higher power output is recommended when configuring a system with more power-consuming devices. The system may become unstable or may not boot up if the power is inadequate.

•If you want to use two high-end PCI Express x16 cards, use a PSU with 500W to 600W power or above to ensure the system stability.

•The ATX 12V Specification 2.0-compliant (500 W) PSU has been tested to support the motherboard power requirement with the following configuration:

Normal Loading

CPU

PSC 3.73G 1066

DDR800

1GB*2

VGA

Nvidia 7800GTX*2

SATA-HD

SATA*4

ESATA-HD

1

IDE-HD

1

CD-ROM

1

USB

2

PCI

1

•If you want to use the SLI™ configuration, visit the NVIDIA website (www. nvidia.com) for the qualified PSU vendor list.

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Chapter 2: Hardware information