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AHA-2840A
ADAPTEC, INC.
AHA-2840A
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Card Type
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Hard drive controller card
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Hard Drives supported
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Up to 7 SCSI devices
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Floppy drives supported
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None
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Data Bus
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32-bit VESA Local Bus
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Card Size
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Full-length, full-height card
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CONNECTIONS
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Function
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Location
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Function
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Location
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4-pin LED connector
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J1
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50-pin SCSI connector - external
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J4
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50-pin SCSI connector - internal
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J3
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USER CONFIGURABLE SETTINGS
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Function
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Label
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Position
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| »
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Write-back enabled
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J5
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Closed
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Write-back disabled
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J5
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Open
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Factory configured - do not alter
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S1/5
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Reserved
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Host adapter BIOS enabled
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S1/8
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Off
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Host adapter BIOS disabled
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S1/8
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On
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I/O ADDRESS SELECTION
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Address
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S1/1
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S1/2
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S1/3
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S1/4
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| »
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1C00h
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Off
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Off
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Off
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Off
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2C00h
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On
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Off
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Off
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Off
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3C00h
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Off
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On
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Off
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Off
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4C00h
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On
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On
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Off
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Off
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5C00h
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Off
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Off
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On
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Off
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6C00h
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On
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Off
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On
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Off
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7C00h
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Off
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On
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On
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Off
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8C00h
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On
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On
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On
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Off
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9C00h
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Off
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Off
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Off
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On
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AC00h
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On
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Off
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Off
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On
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BC00h
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Off
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On
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Off
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On
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CC00h
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On
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On
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Off
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On
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DC00h
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Off
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Off
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On
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On
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EC00h
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On
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Off
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On
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On
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FC00h
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Off
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On
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On
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On
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Reserved
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On
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On
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On
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On
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BIOS ADDRESS SELECTION
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Address
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S1/6
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S1/7
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C8000h
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On
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Off
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D0000h
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Off
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On
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| »
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D8000h
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Off
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Off
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E0000h
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On
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On
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