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286 VLSI TURBO MAINBOARD
UNIDENTIFIED
286 VLSI TURBO MAINBOARD
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Processor
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80286
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Processor Speed
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12/16MHz
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Chip Set
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VLSI
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Max. Onboard DRAM
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4MB
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Cache
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None
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BIOS
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AMI/Award/Phoenix
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Dimensions
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330mm x 218mm
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I/O Options
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None
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NPU Options
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80287
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CONNECTIONS
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Purpose
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Location
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Purpose
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Location
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External battery
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J13
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Power LED & keylock
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J16
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Turbo switch
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J14
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Reset switch
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J18
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Turbo LED
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J15
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Speaker
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J19
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USER CONFIGURABLE SETTINGS
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Function
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Jumper
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Position
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IOCHRDY select normal
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J4
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pins 1 & 2 closed
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IOCHRDY select add on card
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J4
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pins 2 & 3 closed
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| »
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Monitor type select color
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J7
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pins 2 & 3 closed
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Monitor type select monochrome
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J7
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pins 1 & 2 closed
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| »
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Shadow BIOS enabled
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J8
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Open
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Shadow BIOS disabled
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J8
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Closed
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Parity check enabled
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J12
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pins 1 & 2 closed
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Parity check disabled
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J12
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pins 2 & 3 closed
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DRAM CONFIGURATION
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Size
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Bank 0
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P-0
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Bank 1
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P-1
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Bank 2
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Bank 3
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512KB
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(4) 44256
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(2) 41256
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NONE
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NONE
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NONE
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NONE
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640KB
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(4) 44256
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(2) 41256
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(4) 4464
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(2) 4164
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NONE
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NONE
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1MB
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(4) 44256
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(2) 41256
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(4) 44256
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(2) 41256
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NONE
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NONE
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2MB
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NONE
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NONE
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NONE
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NONE
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(2) 1M x 9
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NONE
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4MB
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NONE
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NONE
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NONE
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NONE
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(2) 1M x 9
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(2) 1M x 9
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DRAM JUMPER CONFIGURATION
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Size
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J9
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J10
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J11
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512KB
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Open
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Closed
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Closed
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640KB
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Closed
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Open
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Closed
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1MB
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Closed
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Open
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Closed
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2MB
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Open
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Open
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Open
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4MB
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Closed
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Open
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Open
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