ASRock 970 Extreme4 User Manual - Page 23
CrossFireX, 3-Way CrossFireX, and Quad CrossFireX, Operation Guide, Graphics Card Setup, 6.1.1, - quality
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2.6 CrossFireXTM, 3-Way CrossFireXTM and Quad CrossFireXTM Operation Guide This motherboard supports CrossFireXTM, 3-way CrossFireXTM and Quad CrossFireXTM feature. CrossFireXTM technology offers the most advantageous means available of combining multiple high performance Graphics Processing Units (GPU) in a single PC. Combining a range of dif ferent operating modes with intelligent software design and an innovative interconnect mechanism, CrossFireXTM enables the highest possible level of performance and image quality in any 3D application. Currently CrossFireXTM feature is supported with Windows® XP with Service Pack 2 / VistaTM / 7 OS. 3-way CrossFireXTM and Quad CrossFireXTM feature are supported with Windows ® VistaTM / 7 OS only . Please check AMD website for AMDTM CrossFireXTM driver updates. 1. If a customer incorrectly configures their system they will not see the performance benef ts of CrossFireXTM. All three CrossFireXTM components, a CrossFireXTM Ready graphics card, a CrossFireXTM Ready motherboard and a CrossFireXTM Edition co-processor graphics card, must be installed correctly to benef t from the CrossFireXTM multi-GPU platform. 2. If you pair a 12-pipe CrossFireXTM Edition card with a 16-pipe card, both cards will operate as 12-pipe cards while in CrossFireXTM mode. 2.6.1 Graphics Card Setup 2.6.1.1 Installing Two CrossFireXTM-Ready Graphics Cards Different CrossFireXTM cards may require dif ferent methods to enable CrossFireXTM feature. In the following procedures, we use Radeon HD 3870 as the example graphics card. For other CrossFireX TM cards that AMDTM has released or will release in the future, please refer to AMDTM 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. 23