GIGABYTE GA-990X-Gaming SLI (rev. 1.0) AM3+/AM3 AMD 990X SATA 6Gb/s USB 3.1 USB 3.0 ATX AMD Motherboard Number of Memory Slots: 4×240pin Memory Standard: DDR3 2000(O.C.)/ 1866/ 1600/ 1333/ 1066 PCI Express 2.0 x16: 1 x PCI Express x16 slot, running at x16 (PCIEX16) * For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16_1 slot. 1 x PCI Express x16 slot, running at x8 (PCIEX8) * The PCIEX8 slot shares bandwidth with the PCIEX16 slot. When the PCIEX8 slot is populated, the PCIEX16 slot will operate at up to x8 mode. Onboard Video Chipset: None Audio Chipset: Realtek ALC1150 PCI Express x1: 2 x PCI Express x1 slots (All of the PCI Express slots conform to PCI Express 2.0 standard.) Audio Channels: 7.1 Channels Max LAN Speed: 10/100/1000Mbps
