The 845D-AV MAINBOARD
Ver 3.x
Page 8
USB Ports
USB allows data exchange between your computer and a wide range of
simultaneously accessible external Plug and Play peripherals. The 845D-AV
mainboard is equipped with four USB connectors. USB 1 and USB 2 are
external connectors. They can be found on the PC 99 ATX connector. The other
USB connectors are internal connectors and can be used to connect other USB
devices. (Cables for the internal connectors are sold separately).
Note: The internal USB connectors (CN30 and CN31) are non-standard. When
you purchase the cable please ensure that the connector on one side of the
cable is compatible with the internal USB connector and the connector on the
other side of the cable is a standard USB connector.
Connectors
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Two IDE connectors.
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One floppy drive interface supports up to two 2.88MB floppy drives.
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One 20-pin ATX power supply connector.
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One 4-pin (2x2) 12V ATX power supply connector
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One 4-pin (1x4) ATX Auxiliary power supply connector
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CPU and chassis fan connectors.
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One CD audio-IN connector.
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One Video-IN connector.
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One Aux-IN connector
ATX Double Deck Ports (PC 99 color-coded connectors)
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Two USB ports.
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Two external DB-9 serial port connector: COM 1 and COM 2 (UART).
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One SPP/ECP/EPP DB-25 parallel port.
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One mini-DIN-6 PS/2 mouse port.
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One mini-DIN-6 PS/2 keyboard port.
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One game/MIDI port.
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Three audio jacks: speak-out, line-in and mic-in.
PCI Bus Master IDE Controller
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Two PCI IDE interfaces support up to four IDE devices.
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The 845D-AV mainboard supports ATA/33, ATA/66 and ATA/100
hard drives.
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PIO Mode 3 and Mode 4 Enhanced IDE (data transfer rate up to
16.6MB/sec.).
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Bus mastering reduces CPU utilization during disk transfer.
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Supports ATAPI CD-ROM, LS-120 and ZIP.
Introduction
