Gigabyte GA-P55M-UD2 iP55 ATI CrossFireX Socket 1156 8 channel Gigabit Ethernet audio mATX Motherboard Product Description Leading quality standard of Ultra Durable 3 technology with 2oz copper PCB design Innovative Smart 6 technology for Smarter PC management Support Intel® Core i7/ Core i5 processors with LGA 1156 socket New Dynamic Energy Saver 2 technology enables best energy efficiency Support ATI CrossFireX for ultimate graphics performance Features high speed Gigabit Ethernet connection XHD technology accelerating hard drive performance with ease AutoGreen technology Greening your PC via Bluetooth cellphone Patented GIGABYTE DualBIOS technology delivering highest level failure protection Home theater quality 8-channel High Definition Audio Compatible with Windows 7 to deliver the best operation experience Specification CPU Support for an Intel® Core™ i7 series processor/Intel® Core™ i5 series processor in the LGA1156 package (Go to GIGABYTE's website for the latest CPU support list.) L3 cache varies with CPU Chipset Intel® P55 Express Chipset Memory 4 x 1.5V DDR3 DIMM sockets supporting up to 16 GB of system memory Dual channel memory architecture Support for DDR3 2200/1333/1066/800 MHz memory modules Support for non-ECC memory modules Support for Extreme Memory Profile (XMP) memory modules (Go to GIGABYTE's website for the latest memory support list.) Audio Realtek ALC888B codec High Definition Audio 2/4/5.1/7.1-channel Support for S/PDIF In/Out Support for CD In LAN 1 x RTL8111D chip (10/100/1000 Mbit) Expansion Slots 1 x PCI Express x16 slot, running at x16 (PCIEX16) (The PCIEX16 slot conforms to PCI Express 2.0 standard.) 1 x PCI Express x16 slot, running at x4 (PCIEX4) 2 x PCI slots Multi-Graphics Technology Support for ATI CrossFireX™ technology Storage Interface Intel® P55 Express Chipset: 5 x SATA 3Gb/s connectors (SATA2_0, SATA2_1, SATA2_2, SATA2_3, SATA2_4) supporting up to 5 SATA 3Gb/s devices 1 x eSATA 3Gb/s connector on the back panel supporting up to 1 SATA 3Gb/s device Support for SATA RAID 0, RAID 1, RAID 5, and RAID 10 GIGABYTE SATA2 chip: 1 x IDE connector supporting ATA-133/100/66/33 and up to 2 IDE devices 2 x SATA 3Gb/s connectors (GSATA2_0, GSATA2_1) supporting up to 2 SATA 3Gb/s devices Support for SATA RAID 0, RAID 1, and JBOD iTE IT8720 chip: 1 x floppy disk drive connector supporting up to 1 floppy disk drive USB Integrated in the Chipset Up to 14 USB 2.0/1.1 ports (10 on the back panel, 4 via the USB brackets connected to the internal USB headers) IEEE 1394 T.I. TSB43AB23 chip Up to 2 IEEE 1394a ports (1 on the back panel, 1 via the IEEE 1394a bracket connected to the internal IEEE 1394a header) Internal I/O Connectors 1 x 24-pin ATX main power connector 1 x 8-pin ATX 12V power connector 1 x floppy disk drive connector 1 x IDE connector 7 x SATA 3Gb/s connectors 1 x CPU fan header 1 x system fan header 1 x front panel header 1 x front panel audio header 1 x CD In connector 1 x S/PDIF In header 1 x S/PDIF Out header 2 x USB 2.0/1.1 headers 1 x IEEE 1394a header 1 x serial port header 1 x clearing CMOS jumper Back Panel Connectors 1 x PS/2 keyboard or PS/2 mouse port 1 x coaxial S/PDIF Out connector 1 x optical S/PDIF Out connector 10 x USB 2.0/1.1 ports 1 x eSATA 3Gb/s port 1 x IEEE 1394a port 1 x RJ-45 port 6 x audio jacks (Center/Subwoofer Speaker Out/Rear Speaker Out/ Side Speaker Out/Line In/Line Out/Microphone) I/O Controller 1. iTE IT8720 chip H/W Monitoring System voltage detection CPU/System temperature detection CPU/System fan speed detection CPU overheating warning CPU/System fan fail warning CPU/System fan speed control BIOS 2 x 16 Mbit flash Use of licensed AWARD BIOS Support for DualBIOS™ PnP 1.0a, DMI 2.0, SM BIOS 2.4, ACPI 1.0b Unique Features Support for @BIOS Support for Q-Flash Support for Xpress BIOS Rescue Support for Download Center Support for Xpress Install Support for Xpress Recovery2 Support for EasyTune Support for Dynamic Energy Saver™ 2 Support for Smart 6™ Support for Q-Share Operating System Support for Microsoft® Windows 7/Vista/XP Form Factor Micro ATX Form Factor; 24.4cm x 24.4cm