description : cpu amd socket am2+ / am2 processors amd phenom™ fx / phenom / athlon™ / sempron™ amd cool 'n' quiet™ technology support cpu up to 140w chipset amd 780g/sb700 system bus up to 5200/mt/s hypertransport™ 3.0 interface for am2+ cpu 2000 / 1600 mt/s for am2 cpu memory 4 x dimm, max. 8 gb, ddr2 1066/800/667 ecc,non-ecc,un-buffered memory dual channel memory architecture *ddr2 1066 is supported by am2+ cpu only expansion slots 1 x pcie x16 (support pcie 2.0 / 1.0 architecture ) 1 x pcie x1 2 x pci 2.2 vga integrated ati radeon™ hd 3200 gpu supports displayport* with max. resolution up to 2560 x 1600@60hz supports hdmi™ technology with max. resolution up to 1920 x 1200 (1080p) supports dual-link dvi with max. resolution up to 2560 x 1600@60hz supports d-sub with max. resolution up to 2456 x 1536 @75hz hybrid crossfirex™ support (for windows vista only) ** supports microsoft® directx 10, opengl 2.0, pixel shader 4.0 maximum shared memory of 256mb storage chipset 1 xultradma 133/100 5 x sata 3.0gb/s ports, support raid 0,1,10 1 x esata 3.0gb/s ports, support raid 0, 1 and 10 1 x esata 3.0gb/s ports, support raid 0,1,10 lan gigabit lan audio realtek® alc1200 8 -channel high definition audio codec - optical s/pdif out port at back i/o usb 12 usb 2.0 ports (6 ports at mid-board, 6 ports at back panel) overclocking features sfs (stepless frequency selection) - fsb tuning from 200mhz to 300mhz at 1mhz increment adjustable cpu voltage at 0.05v increment overclocking protection - asus c.p.r.(cpu parameter recall) special features express gate asus q-fan asus mylogo2 asus crashfreebios3 asus ez flash2 asus noise filter ai nap back panel i/o ports 1 x ps/2 keyboard 1 x s/pdif out (optical) 1 x hdmi 1 x displayport 1 x d-sub 1 x dvi 1 x 1394 1 x esata 1 x rj45 port 6 x usb 2.0/1.1 8-channel audio i/o internal i/o connectors 3 x usb connector (6 ports) 1 x floppy disk drive connector 1 x ide connector 1 x com connector 5 x sata connectors 1 x 1394 1 x cpu fan connector 1 x chassis fan connector 1 x power fan connector 1 x s/pdif out header chassis intrusion connector cd audio in 24-pin atx power connector 4-pin atx 12v power connector system panel bios 8 mb flash rom dmi 2.0 ami bios pnp wfm 2.0 sm bios 2.5 acpi 2.0a asus ez flash 2 accessories ultradma 133/100/66 cable fdd cable sata cables sata power cables user's manual 2 in 1 q-connector support disc express gate drivers asus pc probe ii asus liveupdate utility anti-virus software (oem version) form factor uatx form factor 9.6 inch x9.6 inch ( 24.4 cm x24.4 cm )