Asrock 870 extreme User Manual

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1. If a customer incorrectly configures their system they will not see the
performance benefits of CrossFireX

. All three CrossFireX

components, a

CrossFireX

Ready graphics card, a CrossFireX

Ready motherboard and a

CrossFireX

Edition co-processor graphics card, must be installed correctly to

benefit from the CrossFireX

multi-GPU platform.

2. If you pair a 12-pipe CrossFireX

Edition card with a 16-pipe card, both cards

will operate as 12-pipe cards while in CrossFireX

mode.

2.5

CrossFireX

and Quad CrossFireX

Operation Guide

This motherboard supports CrossFireX

and Quad CrossFireX

feature.

CrossFireX

technology offers the most advantageous means available of combining

multiple high performance Graphics Processing Units (GPU) in a single PC. Combining
a range of different operating modes with intelligent software design and an innovative
interconnect mechanism, CrossFireX

enables the highest possible level of

performance and image quality in any 3D application. Currently CrossFireX

feature

is supported with Windows

XP with Service Pack 2 / Vista

/ 7 OS. Quad

CrossFireX

feature are supported with Windows

Vista

/ 7 OS only. Please

check AMD website for ATI

CrossFireX

driver updates.

2.5.1 Graphics Card Setup

Different CrossFireX

cards may require different methods to enable CrossFireX

feature. In below procedures, we use Radeon HD 3870 as the example graphics card.
For other CrossFireX

cards that ATI

has released or will release in the future, please

refer to ATI

graphics card manuals for detailed installation guide.

Step 1. Insert one Radeon graphics card into PCIE2 slot and the other Radeon

graphics card to PCIE4 slot. Make sure that the cards are properly seated
on the slots.