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386-25
J-MARK COMPUTER CORPORATION
386-25
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Processor
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AM386/80386 (exact location unidentified)
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Processor Speed
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25MHz
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Chip Set
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OPTI
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Video Chip Set
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None
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Maximum Onboard Memory
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16MB ( 8MB on external card)
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Maximum Video Memory
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None
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Cache
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None
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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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External memory card
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NPU Options
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80387/3167
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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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Turbo LED
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CR4
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External memory card
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SL1
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External battery
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J10
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Reset switch
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SW1
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Speaker
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J22
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Turbo switch
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SW2
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Power LED & keylock
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J23
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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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Monitor type select color
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JP1
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Pins 1 & 2 closed
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Monitor type select monochrome
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JP1
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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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Bank 1
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1MB
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(4) 256K x 9
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None
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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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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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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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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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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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3MB
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(4) 256K x 9
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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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4MB
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(4) 256K x 9
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(4) 256K x 9
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(4) 256K x 9
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(4) 256K x 9
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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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5MB
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(4) 256K x 9
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(4) 1M x 9
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None
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None
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6MB
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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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None
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6MB
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(4) 256K x 9
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(4) 256K x 9
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(4) 1M x 9
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None
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6MB
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(4) 256K x 9
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(4) 1M x 9
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(4) 256K x 9
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None
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7MB
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(4) 256K x 9
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(4) 256K x 9
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(4) 1M x 9
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(4) 256K x 9
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7MB
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(4) 256K 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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7MB
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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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(4) 256K x 9
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DRAM CONFIGURATION (CON’T)
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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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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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9MB
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(4) 256K 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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9MB
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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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None
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9MB
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(4) 1M x 9
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(4) 256K x 9
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(4) 1M x 9
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None
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10MB
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(4) 256K x 9
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(4) 256K x 9
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(4) 1M x 9
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(4) 1M x 9
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10MB
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(4) 256K x 9
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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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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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10MB
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(4) 1M x 9
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(4) 256K x 9
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(4) 1M x 9
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(4) 256K x 9
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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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13MB
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(4) 256K 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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13MB
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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) 256K x 9
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13MB
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(4) 1M x 9
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(4) 256K x 9
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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) 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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Note: If this board has 16MB installed, the on board memory is disabled.
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