Gigabyte GA-MA790X-UD4 Manual - Page 8

Block Diagram 1 PCIe x16 (Note 2) 2 PCIe x8 (Note 2) PCIe CLK (100 MHz) or AMD Socket AM2+/AM2 CPU CPU CLK+/-(200 MHz) DDR2 1200 (Note 1)/1066/800 MHz Hyper Transport 3.0 Dual Channel Memory Switch PCI Express Bus PCIe CLK (100 MHz) PCI Express Bus x1 x1 x1 x1 RTL 8111C RJ45 3 PCI Express x1 LAN PCI Bus TSB43AB23 3 IEEE 1394a AMD 790X AMD SB750 Dual BIOS 6 SATA 3Gb/s ATA-133/100/66/33 IDE Channel 12 USB Ports CODEC LPC BUS IT8720 Floppy COM Port PS/2 KB/Mouse Surround Speaker Out Center/Subwoofer Speaker Out Side Speaker Out MIC Line-Out Line-In SPDIF In SPDIF Out 2 PCI (Note 1) (Note 2) Whether 1200 MHz memory speed is supported depends on the CPU being used. For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16_1 slot. The PCIEX8_1 slot shares bandwidth with the PCIEX16_1 slot. When PCIEX8_1 is populated with a PCI Express graphics card, the PCIEX16_1 slot will operate at up to x8 mode. - 8 -