ASRock FM2A75 Pro4 - Manual (Page 19)

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ASRock FM2A75 Pro4 Motherboard
English
2.5 CrossFireX TM and Quad CrossFireX TM Operation Guide
This motherboard supports CrossFireX TM and Quad CrossFireX TM feature.
CrossFireX TM 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
TM enables the highest
possible level of performance and image quality in any 3D application. Currently
CrossFireX
TM feature is supported with Windows ® Vista TM / 7 OS. Quad CrossFireX TM
feature are supported with Windows ® Vista TM / 7 OS only. Please check AMD
website for AMD CrossFireX TM driver updates.
2.5.1 Graphics Card Setup
Different CrossFireX TM cards may require different methods to enable CrossFi-
reX TM feature. For other CrossFireX TM cards that AMD has released or will release
in the future, please refer to AMD 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.
1. If a customer incorrectly configures their system they will not see the
performance benefits of CrossFireX TM . All three CrossFireX TM components, a
CrossFireX TM Ready graphics card, a CrossFireX TM Ready motherboard and a
CrossFireX TM Edition co-processor graphics card, must be installed correctly
to benefit from the CrossFireX TM multi-GPU platform.
2. If you pair a 12-pipe CrossFireX TM Edition card with a 16-pipe card, both
cards will operate as 12-pipe cards while in CrossFireX TM mode.