ATI Technologies HD3800 Series - ATI Radeon HD 3800 Series Board Layout and Connectors

Chapter 2: Hardware Installation
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2.3 Board Layout
 HD3870XTG4
Note:
• Specialized PCI Express® 500 watt or greater power supply
recommended.
• A 550 watt or greater power supply is required for CrossFire™.
• Use power supply 6-pin cable (note, power supply cable is 6-
wire, not 3-wire).