User manual INTEL DESKTOP BOARD DG41CN

[. . . ] Intel may make changes to specifications and product descriptions at any time, without notice. Intel Desktop Board DX79TO may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available on request. Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order. Copies of documents which have an ordering number and are referenced in this document, or other Intel literature, may be obtained from Intel Corporation by going to the World Wide Web site at: http://www. intel. com/ or by calling 1-800-548-4725. Intel, Intel Core, and Xeon are trademarks of Intel Corporation in the United States and/or other countries. [. . . ] When installing linked graphics cards in the PCI Express x16 connectors, refer to the card manufacturer?s instructions to determine correct card placement and interconnection. Use the connectors included with the Desktop Board to connect the graphics cards together. NOTE The installations steps that follow provide general instructions, for more complete installation and configuration information refer to the documentation supplied by the graphics card manufacturer or visit their website. To install two linked PCI Express graphics cards: 1. Observe the precautions in "Before You Begin" on page 31. Install the first card in the PCI Express x16 connector as described in ?Installing PCI Express x16 Graphics Cards?on page 42. 44 Installing and Replacing Desktop Board Components 3. Place the second card in the secondary PCI Express x16 connector (Figure 18, A) and press down on the card until it is completely seated in the connector and the card retention notch on the card snaps into place around the retention mechanism pin on the connector. Secure the card?s metal bracket to the chassis back panel with a screw (Figure 18, B). Connect the two cards together with the SLI bridge (Figure 18, C) as shown. Connect the monitor cable to the graphics card according to the manufacturer?s instructions. Figure 18. Installing Linked PCI Express Graphics Cards For more complete installation and configuration information refer to the documentation supplied by the graphics card manufacturer or visit their website. 45 Intel Desktop Board DX79TO Product Guide Connecting SATA Cables SATA cables support the Serial ATA protocol. Back Panel CIR Header Emitter (Output) Header Signal Names Pin 1 3 5 Signal Name Emitter Out 1 Ground Jack Detect 1 Pin 2 4 6 Signal Name Emitter Out 2 Key (no pin) Jack Detect 2 49 Intel Desktop Board DX79TO Product Guide USB 2. 0 Headers Figure 20, E shows the location of the USB 2. 0 headers. Table 11 shows the pin assignments and signal names for each USB 2. 0 header. Each USB header can be used to connect two USB devices. USB 2. 0 Header Signal Names USB Port A Pin 1 3 5 7 9 Signal Name Power (+5 V) DD+ Ground Key Pin 2 4 6 8 10 USB Port B Signal Name Power (+5 V) DD+ Ground No Connection NOTE Computer systems that have an unshielded cable attached to a USB port might not meet FCC Class B requirements, even if no device or a low-speed USB device is attached to the cable. Use a shielded cable that meets the requirements for a full-speed USB device. Front Panel Header Figure 20, G shows the location of the front panel header. Table 12 shows the pin assignments and signal names for the front panel header. Front Panel Header Signal Names Pin 1 3 5 7 9 Description Hard Drive Activity LED Hard disk LED pull-up to +5 V Out Hard disk active LED Reset Switch Ground Reset switch Power Power Out 10 No pin In 6 8 Ground Not Connected Out 2 4 In/Out Pin Description Power LED Front panel green LED Front panel yellow LED On/Off Switch Power switch In Out Out In/Out 50 Installing and Replacing Desktop Board Components Alternate Front Panel Power LED Header Figure 20, H shows the location of the alternate front panel power LED header. Pins 1 and 3 of this header duplicate the signals on pins 2 and 4 of the front panel header. If your chassis has a three-pin power LED cable, connect it to this header. Table 13 shows the pin assignments and signal names for the alternate front panel power LED header. Alternate Front Panel Power LED Header Signal Names Pin 1 2 3 Description Front panel green LED No pin Front panel yellow LED Out In/Out Out Connecting to the Audio System After installing the RealTek audio driver from the Intel Express Installer DVD, the multi-channel audio feature can be enabled. [. . . ] Product certifications or lack of certifications External I/O cable shielding and filtering Mounting, grounding, and bonding requirements Keying connectors when mating the wrong connectors could be hazardous If the power supply and other modules or peripherals, as applicable, are not Class B EMC compliant before integration, then EMC testing may be required on a representative sample of the newly completed computer. 83 Intel Desktop Board DX79TO Product Guide Product Certifications Board-Level Certifications Intel Desktop Board DX79TO has the regulatory compliance marks shown in Table 21. Regulatory Compliance Marks Description UL joint US/Canada Recognized Component mark. Includes adjacent UL file number for Intel Desktop Boards: E210882. FCC Declaration of Conformity logo mark for Class B equipment. [. . . ]