ASRock 990FX Extreme4 - Manual (Page 17)

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ASRock 990FX Extreme4 Motherboard
2.5 SLI TM and Quad SLI TM Operation Guide
This motherboard supports NVIDIA ® SLI TM and Quad SLI TM (Scalable Link Interface)
technology that allows you to install up to three identical PCI Express x16 graphics
cards. Currently,
NVIDIA ® SLI TM technology supports Windows ® XP / XP 64-bit /
Vista TM / Vista TM 64-bit / 7 / 7 64-bit OS. NVIDIA ® Quad SLI TM technology support
Windows ® Vista TM / Vista TM 64-bit / 7 / 7 64-bit OS only. Please follow the installation
procedures in this section.
Requirements
1. For SLI TM technology, you should have two identical SLI TM -ready
graphics cards that are NVIDIA ® certifi ed. For Quad SLI TM technolo-
gy, you should have two identical Quad SLI TM -ready graphics cards
that are NVIDIA ® certifi ed.
2. Make sure that your graphics card driver supports NVIDIA ® SLI TM
technology. Download the driver from NVIDIA ® website
(www.nvidia.com).
3. Make sure that your power supply unit (PSU) can provide at least
the minimum power required by your system. It is recommended
to use NVIDIA
® certifi ed PSU. Please refer to NVIDIA ® website for
details.
2.5.1 Graphics Card Setup
2.5.1.1 Installing Two SLI TM -Ready Graphics Cards
Step 1. Install the identical SLI TM -ready graphics cards that are NVIDIA ® certifi ed
because different types of graphics cards will not work together properly.
(Even the GPU chips version shall be the same.) Insert one graphics card
into PCIE2 slot and the other graphics card to PCIE4 slot. Make sure that
the cards are properly seated on the slots.
Step2. If required, connect the auxiliary power source to the PCI Express
graphics
cards.
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