Acer Veriton M6618G Service Manual page 12

Should support 1.44MB/3 mode 3.5" Devices
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Extension slot
1 * PCIE x16 (PCIE V2.0)
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2 * PCIE x1 (PCIE V2.0)
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Buzzer
1 on board buzzer
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Rear I/O connectors
1 D-Sub port
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1 DVI-D port
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1 Display port
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6 USB 2.0 ports
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1 RJ45 LAN port
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3 mini audio jacks
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At least five 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
1 LGA 1155 CPU socket
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4 DDR3 DIMM memory sockets
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1 PCI Express x16 slot
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2 PCI Express x 1 slot
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1 PCI slot
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1 FDD header
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5 SATA connectors( (6Gb/s*1 for Q65. must use different color to define, others should be SATAII. )
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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(co-lay 4pin) System Fan connector with linear circuit
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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.
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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 2pin OBR header
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Two reserved 2pin GPIO connector
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One Serial port header (COM2) (near rear IO is preferable)
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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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One 3pin ME enable/disable connector (with 1 jumper)
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1 a debug port XDP Connector(BOM option)
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4 Chapter 1