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80486AT (Ver. 1.0)
BEC COMPUTER ENTERPRISE
80486AT (Ver. 1.0)
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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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None
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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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355mm x 304mm
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I/O Options
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None
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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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Reset switch
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W1
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Power LED & keylock
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W5
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Turbo switch
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W3
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Speaker
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W10
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Turbo LED
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W4
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External battery
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W11
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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) 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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7MB
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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) 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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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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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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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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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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CPU SWITCH (SW2) CONFIGURATION
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Size
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SW2/switch 1
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SW2/switch 2
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SW2/switch 3
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SW2/switch 4
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1MB
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open
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open
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open
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open
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2MB
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closed
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open
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open
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open
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3MB
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open
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closed
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open
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open
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4MB
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closed
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closed
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open
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open
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4MB
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open
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open
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closed
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open
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5MB
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open
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open
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closed
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closed
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6MB
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open
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closed
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open
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closed
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7MB
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closed
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open
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open
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closed
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8MB
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closed
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open
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closed
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open
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9MB
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open
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closed
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closed
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closed
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10MB
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closed
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closed
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open
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closed
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12MB
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open
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closed
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closed
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open
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13MB
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closed
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closed
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closed
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closed
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16MB
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closed
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closed
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closed
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open
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SRAM JUMPER CONFIGURATION
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Size
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Jumper W6
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Jumper W8
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Jumper W9
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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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pins 1 & 2 closed
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256KB
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pins 1 & 2 closed
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pins 2 & 3 closed
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pins 2 & 3 closed
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SRAM CONFIGURATION
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Size
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Bank 0
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TAG
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64KB
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(8) 8K x 8
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(2) 16K x 4
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256KB
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(8) 32K x 8
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(2) 16K x 4
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