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AGI 4000A EV-1895
EVEREX SYSTEMS, INC.
AGI 4000A EV-1895
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Processor
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80486DX
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Processor Speed
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25/33MHz
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Chip Set
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C & T
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Max. Onboard DRAM
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16MB
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SRAM Cache
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64/256KB
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BIOS
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AMI
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Dimensions
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350mm x 320mm
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I/O Options
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32-bit external memory card
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NPU Options
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4167
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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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Front panel connector
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J4
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32-bit memory card
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S1
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Speaker
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J5
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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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Factory configured - do not alter
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W1
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Open
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Factory configured - do not alter
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W7
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Unknown
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CPU speed select High
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W6
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Open
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CPU speed select normal
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W6
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pins 1 & 2 closed
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CPU speed select switchable via the keyboard
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W6
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pins 2 & 3 closed
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Monitor type select color
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W7
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pins 1 & 2 closed
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Monitor type select monochrome
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W7
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pins 2 & 3 closed
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Speaker select enabled
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W20
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Closed
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Speaker select disabled
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W20
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Open
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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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Bank 2
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Bank 3
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W8
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W9
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1MB
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(4) 256K x 9
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NONE
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NONE
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NONE
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pins 2 & 3
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pins 2 & 3
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2MB
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(4) 256K x 9
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(4) 256K x 9
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NONE
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NONE
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pins 2 & 3
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pins 2 & 3
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4MB
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(4) 1M x 9
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NONE
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NONE
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NONE
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pins 1 & 2
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pins 1 & 2
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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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NONE
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NONE
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pins 1 & 2
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pins 1 & 2
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10MB
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(4) 1M x 9
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(4) 1M x 9
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(4) 256K x 9
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(4) 256K x 9
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pins 1 & 2
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pins 1 & 2
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12MB
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(4) 1M x 9
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(4) 1M x 9
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(4) 1M x 9
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NONE
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pins 1 & 2
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pins 1 & 2
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16MB
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(4) 1M x 9
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(4) 1M x 9
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(4) 1M x 9
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(4) 1M x 9
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pins 1 & 2
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pins 1 & 2
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Note:10, 12 and 16MB configurations require the installation of the EV-1896 memory card.
Pins designated should be in the closed position.
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DRAM SWITCH CONFIGURATION
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Size
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SW1/switch 1
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SW1/switch 2
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SW1/switch 3
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SW1/switch 4
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1MB
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On
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Off
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On
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On
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2MB
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Off
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Off
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On
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Off
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4MB
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On
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On
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On
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On
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8MB
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Off
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Off
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On
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Off
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10MB
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Off
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On
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On
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On
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12MB
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Off
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On
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Off
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On
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16MB
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Off
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On
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Off
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Off
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CACHE CONFIGURATION
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Size
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Cache
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TAG
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64KB
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(10) 16K x 4
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(1) 16K x 1
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256KB
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(10) 64K x 4
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(1) 64K x 1
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CACHE JUMPER CONFIGURATION
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Size
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W2
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W3
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64KB
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pins 1 & 2 closed
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pins 1 & 2 closed
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256KB
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pins 2 & 3 closed
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pins 2 & 3 closed
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