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 board  8-pin power  CPU Socket  Ultra Durable Starting from the upper right hand corner of the board we find that GIGABYTE has included an 8-pin power connector under the I/O area. The CPU Fan connector is below the first motherboard mounting hole is a 4-pin connector. The CPU area itself is relatively bare of obstructions with the bracket in the normal position.  790FX NB  DIMM Sockets  Southbridge  24-pin power Surrounding the CPU bracket are two heatsinks connected by a heatpipe. One has the words Ultra Durable on it. This heatsink covers the MOSFETs. The second heatsink covers the 790FX Northbridge chip. A second heatpipe leads to the SB750 Southbridge chip. This combination of heatsinks and heatpipes should effectively cool the chipsets. Driver screenshots ITE chip  SysFan 1  SysFan 2  RTM880N-793 chip The DIMM Sockets are below the CPU bracket. GIGABYTE includes four DIMM slots accepting up to 16GB of DDR3 memory clocked up to 1866+. As the memory controller is on the CPU, the clock speed is dependent on the FSB of the CPU. The memory is split into two color-coordinated banks of two memory slots each. To install the memory in dual channel mode, insert it into the like colored memory slots, either two white or two blue.  USB and Firewire  FP IO  ESATA/USB Combo  COM Port The bottom of the board starts off with the Dolby Home Theater logo. To the left of that is the 24-pin power connector for the board. Above the 24-pin connector is the Power and Reset buttons to allow the system to be turned on without installing it into a case. To the left of the 24-pin power are the IDE and FDD connectors. To the left of those is the Clear CMOS button allowing the user to reset the CMOS easily without opening the case?  USB and Firewire  FP IO  ESATA/USB Combo  COM Port The storage capabilities of the GIGABYTE MA-790FXTA-UD5 include six SATA 2 ports for connecting SATA devices on the 3 Gigabit/second interface and two SATA 6 Gigabit/second ports for those devices. The SATA 6 Gb/second ports are controlled by a Marvell SE9128 SATA 3 controller. This works by taking PCI Express lanes from the Northbridge and will still allow Crossfire, unlike motherboards on the P55 chipset which uses the PCI Express lanes from the CPU. Expansion on this board is dominated by three PCI Express x16 Generation 2 slots. The expansion slots are laid out PCI Express x1, PCI Express x16, PCI, PCI Express x16, PCI, PCI Express x16, PCI, giving two slots for each graphics card slot, allowing proper spacing of the graphics cards on this motherboard. While there are 4-PCI Express x16 slot motherboards, this combination allows for the optimum configuration of spacing and offering an additional PCI Express x1 slot for other devices. The FP I/O ports are labeled and start off the left side of the board. This is followed by a SysFan2 header a Firewire header, and two USB 2.0 headers. The next header is interesting in that it is for the combination ESATA/USB port. The last header on the board is for the COM port. The board has an ITE chip, and a Realtek RTM880N chip. The onboard audio is based upon a Realtek ALC889 CODEC and supports 7.1+2 channel simultaneous output (Multi-Streaming).  TI chip  ALC889  Realtek driver  Realtek driver The rear I/O on the board is comprehensive including a PS/2 mouse, a PS/2 keyboard port, a SPDIF Optical and Coaxial port four USB 3.0 ports, two USB/ESATA combo ports, two USB 2.0 ports, two Gigabit LAN ports and the 6 jacks for the onboard sound. The LAN PHYs are Realtek RTL8111Ds. The USB 3.0 ports are controlled by a NEC chip which also uses PCI Express lanes from the Northbridge. The 790FX NB is an excellent fit for both SATA and USB 3.0 as it has excess PCI Express lanes to spare.  RTL8111D PHYs  Expansion  NEC USB 3.0  Rear I/O Contents:
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