Gigabyte GA-990XA-UD3 Rev. 3.0

AM3+ Socket:AMD AM3+ FX processorsAMD AM3 Phenom™ II processors/ AMD Athlon™ II processors(Please refer "CPU Support List" for more information.)Hyper Transport Bus5200 MT/sChipsetNorth Bridge: AMD 990XSouth Bridge: AMD SB950Memory4 x 1.5V DDR3 DIMM sockets supporting up to 32 GB of system memory (Note 1)Dual channel memory architectureSupport for DDR3 2000(O.C.)/1866/1600/1333/1066 MHz memory modules (Note 2)Support for Extreme Memory Profile (XMP) memory modules(Please refer "Memory Support List" for more information.)AudioRealtek ALC889 codecHigh Definition Audio2/4/5.1/7.1-channelSupport for Dolby® Home TheaterSupport for S/PDIF OutLANRealtek GbE LAN chip (10/100/1000 Mbit)Expansion Slots1 x PCI Express x16 slot, running at x16 (PCIEX16) (Note 3)1 x PCI Express x16 slot, running at x8 (PCIEX8) (Note 4)1 x PCI Express x16 slot, running at x4 (PCIEX4)2 x PCI Express x1 slots(All PCI Express slots conform to the PCI Express 2.0 standard.)2 x PCI slotsMulti-Graphics TechnologySupport for 2-Way AMD CrossFire™/NVIDIA SLI technology (The PCIEX16 and PCIEX8 slots only.)Storage InterfaceSouth Bridge:6 x SATA 6Gb/s connectors supporting up to 6 SATA 6Gb/s devicesSupport for RAID 0, RAID 1, RAID 5, RAID 10, and JBODUSBSouth Bridge:Up to 14 USB 2.0/1.1 ports (8 ports on the back panel, 6 ports available through the internal USB headers)2 x Etron EJ168 chips:Up to 4 USB 3.0/2.0 ports (2 ports on the back panel, 2 ports available through the internal USB header) (Note 5)IEEE 1394VIA VT6308 chip:Up to 2 IEEE 1394a ports (1 port on the back panel, 1 port available through the internal IEEE 1394a header)Internal I/O Connectors1 x 24-pin ATX main power connector1 x 8-pin ATX 12V power connector6 x SATA 6Gb/s connectors1 x CPU fan header2 x system fan headers1 x power fan header1 x front panel header1 x front panel audio header1 x S/PDIF Out header3 x USB 2.0/1.1 headers1 x USB 3.0/2.0 header1 x IEEE 1394a header1 x serial port header1 x Clear CMOS jumper1 x Trusted Platform Module (TPM) headerBack Panel Connectors1 x PS/2 keyboard/mouse port1 x optical S/PDIF Out connector1 x IEEE 1394a port8 x USB 2.0/1.1 ports2 x USB 3.0/2.0 ports1 x RJ-45 port6 x audio jacks (Center/Subwoofer Speaker Out, Rear Speaker Out, Side Speaker Out, Line In, Line Out, Mic In)I/O ControlleriTE I/O Controller ChipH/W MonitoringSystem voltage detectionCPU/System temperature detectionCPU/System/Power fan speed detectionCPU overheating warningCPU/System/Power fan fail warningCPU/System fan speed control (Note 6)BIOS2 x 32 Mbit flashUse of licensed AMI EFI BIOSSupport for DualBIOS™PnP 1.0a, DMI 2.0, SM BIOS 2.6, ACPI 2.0aUnique FeaturesSupport for @BIOSSupport for Q-FlashSupport for Xpress InstallSupport for EasyTune (Note 7)Support for Smart Recovery 2Support for Auto GreenSupport for ON/OFF ChargeSupport for 3TB+ UnlockSupport for Q-ShareBundle SoftwareNorton Internet Security (OEM version)Operating SystemSupport for Microsoft® Windows 8/7/Vista/XPForm FactorATX Form Factor; 30.5cm x 24.4cm