Intel DX79SI Product Guide for Intel Desktop Board DX79SI - Page 9

1 Desktop Board Features This chapter briefly describes the features of Intel® Desktop Board DX79SI. Table 1 summarizes the major features of the Desktop Board. Table 1. Feature Summary Form Factor Processor Main Memory Chipset ATX (304.80 millimeters [12.00 inches] x 243.84 millimeters [9.60 inches]) Support for Intel® Core™ i7 and Intel® Xeon® processors in the LGA2011 package with: • Two PCI Express 3.0 x16 graphics interfaces (x16 electrical) • One PCI Express 3.0 x16 (x8 electrical) • Quad-channel memory interface Eight 240-pin DDR3 SDRAM Dual Inline Memory Module (DIMM) sockets arranged in four channels with support for the following: • DDR3 2400 MHz, DDR3 2133 MHz, DDR3 1866 MHz, DDR3 1600 MHz, DDR3 1333 MHz, and DDR3 1066 MHz DIMMs • ECC and non-ECC memory • 1 Gb, 2 Gb, and 4 Gb memory technology • XMP memory • 1.35 V low voltage memory (JEDEC standard) • Up to 64 GB of system memory using 4 Gb memory technology • Manual memory overclocking (voltage, clock, and ratio) Intel® X79 Express Chipset consisting of the Intel® X79 Platform Controller Hub (PCH) Graphics Audio Expansion Capabilities Support for multiple PCI Express* graphics cards including linked cards using Nvidia* SLI* technology and AMD* CrossFire X* technology • Independent multi-streaming 8-channel (7.1) audio and 2-channel audio subsystem, featuring: ― Intel® High Definition Audio interface ― RealTek* ALC892 codec • HD Audio front panel header • Onboard 3-pin S/PDIF output header and back panel optical S/PDIF output connector • Three PCI Express 3.0 x16 connectors (two x16 electrical and one x8 electrical) • Two PCI Express 2.0 x1 connectors • One PCI* bus connector Legacy I/O Support Nuvoton* Legacy I/O Controller that provides Consumer Infrared (CIR) support continued 9