ASROCK 990FX Extreme3 Handbuch Seite 22

2.6.1.2 Installing Three CrossFireX
Step 1. Install one Radeon graphics card to the PCIE2 slot. For the proper instal-
lation procedures, please refer to section "Expansion Slots".
Step 2. Install one Radeon graphics card to the PCIE3 slot. For the proper instal-
lation procedures, please refer to section "Expansion Slots".
Step 3. Install one Radeon graphics card to the PCIE4 slot. For the proper instal-
lation procedures, please refer to section "Expansion Slots".
Step 4. Use one CrossFire
and PCIE3 slots, and use the other CrossFire
graphics cards on PCIE3 and PCIE4 slots. (CrossFire
with the graphics card you purchase, not bundled with this motherboard.
Please refer to your graphics card vendor for details.)
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Bridge to connect Radeon graphics cards on PCIE2
ASRock 990FX Extreme3 Motherboard
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-Ready Graphics Cards
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Bridge to connect Radeon
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Bridge is provided