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ALL-IN-ONE MULTI-CPU SYSTEM BOARD
COMPUDYNE
ALL-IN-ONE MULTI-CPU SYSTEM BOARD
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Processor
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80386DX/80486SX/CX486DLC/TI486DLC/80486DX/80486DX2
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Processor Speed
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20/25/33/40/50(internal)/50/66(internal)MHz
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Chip Set
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Unidentified
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Video Chip Set
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None
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Maximum Onboard Memory
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32MB
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Maximum Video Memory
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None
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Cache
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64/128/256KB
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BIOS
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AMI
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Dimensions
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330mm x 218mm
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I/O Options
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32-bit VESA local bus slot, floppy drive interface, game interface, IDE interface, parallel port, serial ports (2)
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NPU Options
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80387DX
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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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Parallel port
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CN1
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Speaker
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J11
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Game interface
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CN2
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Reset switch
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J12
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Serial port
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CN3
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IDE interface LED
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J13
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Serial port
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CN4
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Turbo switch
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J14
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IDE interface
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CN5
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Turbo LED
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J15
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Floppy drive interface
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CN6
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Power LED & keylock
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J16
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External battery
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J2
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32-bit VESA local bus slot
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SL1
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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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Battery type select internal
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W1
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Closed
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Battery type select external
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W1
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Open
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Monitor type select color
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W2
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Closed
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Monitor type select monochrome
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W2
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Open
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Jumper information unavailable
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W9
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Unidentified
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DRAM CONFIGURATION
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Size
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Bank 0
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Bank 1
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1MB
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(4) 256K x 9
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None
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4MB
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(4) 1M x 9
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None
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5MB
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(4) 256K x 9
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(4) 1M x 9
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8MB
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(4) 1M x 9
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(4) 1M x 9
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16MB
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(4) 4M x 9
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None
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20MB
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(4) 1M x 9
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(4) 4M x 9
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32MB
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(4) 4M x 9
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(4) 4M x 9
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CACHE CONFIGURATION
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Size
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Bank 0
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Bank 1
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TAG
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U64
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64KB
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(4) 8K x 8
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(4) 8K x 8
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(1) 8K x 8
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(1) 64K x 1
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128KB
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(4) 32K x 8
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None
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(1) 8K x 8
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(1) 64K x 1
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256KB
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(4) 32K x 8
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(4) 32K x 8
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(1) 8K x 8
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(1) 64K x 1
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CACHE JUMPER CONFIGURATION
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Size
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W4
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W5
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W6
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W13
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W19
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W20
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W21
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W22
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64KB
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2 & 3
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Open
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Open
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2 & 3
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Open
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Open
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Open
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Open
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128KB
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1 & 2
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Open
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Closed
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1 & 2
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Open
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Open
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Open
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Closed
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256KB
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2 & 3
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Closed
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Closed
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2 & 3
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Open
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Open
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Closed
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Closed
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Note: Pins designated should be in the closed position.
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CPU SPEED SELECTION
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Speed
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W10
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W14
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W15
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W16
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20MHz
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Open
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Closed
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Open
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Open
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25MHz
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Open
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Open
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Closed
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Closed
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33MHz
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Open
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Open
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Closed
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Open
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40MHz
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Closed
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Open
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Open
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Closed
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50iMHz
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Open
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Open
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Closed
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Closed
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50MHz
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Open
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Open
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Closed
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Closed
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66iMHz
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Open
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Open
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Closed
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Open
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CPU TYPE SELECTION
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Type
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W3
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W7
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W8
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W17
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W18
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W23
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W24
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80386DX
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2 & 3
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1 & 2
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2 & 3
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1 & 2
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2 & 3
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Open
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N/A
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CX486DLC
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1 & 2
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1 & 2
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2 & 3
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1 & 2
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2 & 3
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Open
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N/A
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TI486DLC
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1 & 2
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1 & 2
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2 & 3
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1 & 2
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2 & 3
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Open
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N/A
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80486SX
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1 & 2
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1 & 2
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1 & 2
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2 & 3
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1 & 2
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Open
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1 & 2
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80486DX
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1 & 2
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1 & 2
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1 & 2
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2 & 3
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1 & 2
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Open
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2 & 3
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80486DX-50
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1 & 2
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2 & 3
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1 & 2
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2 & 3
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1 & 2
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Closed
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2 & 3
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80486DX2
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1 & 2
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1 & 2
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1 & 2
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2 & 3
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1 & 2
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Open
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2 & 3
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Note: Pins designated should be in the closed position.
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VL BUS WAIT STATE SELECTION
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Setting
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W11
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0
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Open
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1
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Closed
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VL BUS SPEED SELECTION
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Speed
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W12
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<= 33MHz
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Closed
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>33 MHz
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Open
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