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 CPU Socket  CPU Socket area  8-pin power  USB Starting on the upper right hand corner, Intel has placed an 8-pin power connector. To the left of the 8-pin power connector is a USB port. Below the 8-pin power connector is a set of two blue MOSFET heatsinks. The CPUFan header is next to the MOSFET heatsink.  Rear  Bluetooth  CPUFan header  Power button) The CPU area is free of obstacles with plenty of room for after-market cooling solutions. The new LGA-1156 interface is a little different than previous CPU interfaces. To install a CPU, slide out the latch and lift the cover of the CPU Socket, lower the CPU into place, minding the notches, lower the cover making sure the cover goes under the nut and lower the latch.  DIMM Sockets  Solid Capacitors  Skull lit up  Rear of board skull Below the CPU Socket are the four DIMM Sockets. Intel has given the LGA-1156 CPUs a dual channel memory controller, meaning four is the maximum the board can support. The board can take up to 16GB of DDR3 memory clocked up to 1600MHz when overclocked and 1333MHz by default clock speed. The bottom right hand edge has a Power button.  Winbond  TI chip  PCH XDP  Marvell chip The bottom edge of the board starts with a 24-pin power connector. This is good positioning as there is nothing impeding the Power cable in terms of clearance. To the left of that is the FP I/O connectors, followed by the CIR Blaster and Receiver headers. To the left of that are two USB 2.0 headers and a Firewire header.  P55 Express PCH  24-pin power  SATA)  FP IO Intel includes eight SATA ports on their board. The P55 Express chipset can support up to six SATA ports natively. A Marvell 88SE6145 controller is on the board to support the two additional SATA ports and the two external SATA ports on the back panel. Intel has done away with the IDE interface on this board and there is no FDD or IDE connector on the board.  Intel  Power  USB  Fan Expansion options on the board includes a PCI Express x16 2.0 slot for graphics cards. Two PCI Express x1 slots are followed by a PCI Express x8 slot, a PCI Express x4 slot and two Legacy PCI slots round out the device expansion options of the board. ATI’s Crossfrire-X and NVIDIA’s SLI technologies are supported out of the box. When two cards are installed the two long PCI Express slots are divided into x8/x8 mode.  Expansion  Maxim  Front Audio  ALC889 Onboard sound is provided by a Realtek ALC889a sound CODEC. This is a venerable sound CODEC that supports Dolby Digital sound. Intel includes Dolby’s Control Center as part of its software suite. As to be expected from the flagship of Intel’s motherboard lineup, the DP55KG Extreme supports the High Definition Audio standard.  Speakers  Digital In  Dolby Control Panel  Rear I/O Contents:
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