Asus P8Z77 WS User Guide - Page 166

Chapter 5 5.2 NVIDIA® SLI™ technology The motherboard supports the NVIDIA® SLI™ (Scalable Link Interface) technology that allows you to install multi-graphics processing units (GPU) graphics cards. Follow the installation procedures in this section. 5.2.1 Requirements • In Dual SLI mode, you should have two identical SLI-ready graphics cards that are NVIDIA® certified. • In Triple SLI mode, you should have three identical SLI-ready graphics cards that are NVIDIA® certified. • In Quad SLI mode, you should have four identical SLI-ready graphics cards that are NVIDIA® certified. • Ensure that your graphics card driver supports the NVIDIA SLI technology. Download the latest driver from the NVIDIA website (www.nvidia.com). • Ensure that your power supply unit (PSU) can provide at least the minimum power required by your system. See Chapter 2 for details. • We recommend that you install additional chassis fans for better thermal environment. • Visit the NVIDIA zone website (http://www.nzone.com) for the latest certified graphics card and supported 3D application list. 5.2.2 Installing two SLI-ready graphics cards The following pictures are for reference only. The graphics cards and the motherboard layout may vary with models, but the installation steps remain the same. 1. Prepare two SLI-ready graphics cards. 2. Insert the two graphics card into the PCIEX16 slots. If your motherboard has more than two PCIEX16 slots, refer to Chapter 2 in this user manual for the locations of the PCIEX16 slots recommended for multi-graphics card installation. 3. Ensure that the cards are properly seated on the slots. 4. Align and firmly insert the SLI bridge connector to the goldfingers on each graphics card. Ensure that the connector is firmly in place. 5. Connect two independent auxiliary power sources from the power supply to the two graphics cards separately. 5-4 Chapter 5: Multiple GPU technology support