Radeon™ HD 3800 CrossFire™ Edition User Manual
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6.2 CrossFireX™ Power Supply Requirements
¾ HD3870X2
Power supplies with 500-Watt capacity, 30A current on 12V rail and two
6-pin PCI Express® power connectors is recommended for single ATI
Radeon™ HD 3870X2 Series product.
ATI Radeon™ HD 3870X2 series CrossFire configuration (dual graphics
card system) requires 750-Watt capacity power supply with 38A on 12V
rail. CrossFire™ requires a power supply with two 6-pin and two 8-pin (or
four 6-pin) PCI Express® power connectors.
Please consult your power supply vendor specifications to ensure your
system meets the recommended functionality. CrossFire™ configurations
require a CrossFire™ compliant motherboard, which includes two
physical x16 PCI Express® slot interfaces.
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