Acer Veriton X680G Service Manual page 10

4 ports for front daughter board
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4 ports reserved
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Connector Pin: standard Intel FPIO pin definition.
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Data transfer rate support:USB 2.0/1.1
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All USB ports must be boot-capable includes USB-ODD, USB-HDD, USB-FDD, and etc...
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All USB ports must provide the over current protection.
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Extension slot
PCI Express Slot Type : x16
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Quantity : 1
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PCI Express Slot Type : x1
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Quantity : 1
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Rear I/O connectors
1 D-Sub port.
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1 DVI-D port.
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At least 6 USB ports.
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1 e-SATA.
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1 RJ45 LAN port.
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3 mini audio jacks.
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At least three HD audio in/output.
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2 PS2 keyboard/mouse connector.
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1 serial port.
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On-board connectors
One LGA 1156 CPU socket.
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Four DDR3 DIMM memory sockets.
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One PCI Express x16 slot.
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One PCI Express x 1 slot.
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Five SATAII connectors.
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Four 2*5 pin Intel FPIO specification USB pin connectors (follow Intel FPIO standard Specification).
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One 2*5 pin Intel FPIO spec. Microphone In/ Headphone Out pin connectors.
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One 4 pin CPU Fan connector.
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One 3 pin System Fan connector (reserve).
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One 3 pin chipset Fan connector.
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One 4 pin SPDIF header closed to PCIEx16 slot.
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One 24 pin ATX interface PS3/PS2 SPS connector, 4 pin CPU power connector.
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One 2*7 pin front panel IO header.
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One Jumper for clear CMOS.
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One on board buzzer.
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One reserved 2pin GPIO connector (OBR).
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One Serial port header (COM2).
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One 2pin Intrusion Alarm connector.
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One LPT 2*13pin header (near rear IO is preferable).
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One 2*4 pin internal speaker header.
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