User manual MSI MS-7666 G52-76661X2 V1.0

[. . . ] The material in this document is the intellectual property of MICRO-STAR INTERNATIONAL. We take every care in the preparation of this document, but no guarantee is given as to the correctness of its contents. Our products are under continual improvement and we reserve the right to make changes without notice. All trademarks are the properties of their respective owners. [. . . ] If you intend to install TWO graphics cards for CrossFireXTM mode, make sure that: a. These two graphics cards are of the same brand and specifications; b. These two cards are installed on both PCIE x16 slots (PCI_E2 & PCI_E5) that support up to PCIE x16 speed. Make sure that you connect an adequate power supply to the JPWR4 connector (or to the power connector on the graphics card) to ensure stable operation of the graphics card. Only Windows® XP with Service Pack 2 (SP2)& Windows® XP Professional x64 Edition, Windows® Vista & Windows® 7 support the CrossFireXTM function. There is a setting in the CatalystTM Control Center that needs to be enabled for CrossFireXTM to operate. Select the Advanced View from the view drop menu. For more details, please consult the graphics card manual from the manufacturer. NVIDIA® SLI (Scalable Link Interface) technology allows two GPUs to run in tandem within a system to achieve up to twice the performance of a single graphics card. To utilize this technology, the two GPU cards must be connected by an SLI Video Link card. SLI Video Link Card If you intend to use the SLI mode for better graphics performance, please refer to the following instructions. Install two graphics cards into the PCI_E2 & PCI_E5 slots. With two cards installed, an SLI Video Link Card is required to connect the golden fingers on the top of these two graphics cards (refer to the picture below). Please note that although you have installed two graphics cards, only the video outputs on the first card will work. Hence, you only need to connect a monitor to the first PCI Express card. The photos shown in this section are for demonstration only. The appearance of your mainboard may vary depending on the model you purchase. If you intend to install TWO x16 graphics cards, make sure that these two graphics cards are of the same brand and specifications. Make sure that you connect an adequate power supply to the JPWR4 connector (or to the power connector on the graphics card) to ensure stable operation of the graphics card. Check the Enable multi-GPU box to enable the SLI function for the onboard graphics cards (concerning the details of multi-GPU settings, please refer to your graphics card manual). If you want to remove one graphics card and quit the SLI function, make sure the "MultiGPU" function is disabled. These LEDs indicate the current CPU power phase mode. [. . . ] Setting to [Manual] allows you to set the following advanced memory timings. Memory Ratio This item allows you to set the memory multiplier. QPI Links Speed This item is used to select the QPI link speed mode. They can help CPU to reach the higher overclocking performance. [. . . ]