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286 System (Part #368987-01 Rev B)
COMMODORE BUSINESS MACHINES, INC.
286 System (Part #368987-01 Rev B)
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Processor
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80286
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Processor Speed
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8/10MHz
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Chip Set
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Unidentified
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Max. Onboard DRAM
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16MB
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Cache
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None
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BIOS
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Commodore
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Dimensions
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254mm x 218mm
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I/O Options
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16-bit riser card slot, bus mouse port, floppy interface, game port, IDE interface, parallel port, serial ports (2)
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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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16-bit riser card
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CN1
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Drive power
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DPWR
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Serial port 1
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CN2
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Floppy drive interface
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FDD
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Serial port 2
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CN3
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Game port
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GAM
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Parallel port
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CN4
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IDE drive interface
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IDE
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Bus mouse port
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CN5
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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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Battery type select internal
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J10
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pins 2 & 3 closed
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Battery type select external
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J10
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pins 1 & 2 closed
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Monitor type select monochrome
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J12
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Closed
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Monitor type select color
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J12
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Open
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IDE interface enabled
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J14
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pins 1 & 2 closed
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IDE interface disabled
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J14
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pins 2 & 3 closed
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Floppy drive interface enabled
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J15
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pins 1 & 2 closed
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Floppy drive interface disabled
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J15
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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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Bank 2
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Bank 3
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512KB
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(4) 44256
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NONE
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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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(4) 44256
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NONE
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NONE
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1.5MB
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(4) 44256
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(4) 44256
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(2) 256K x 9
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NONE
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2MB
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(4) 44256
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(4) 44256
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(2) 256K x 9
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(2) 256K x 9
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2MB
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(4) 441000
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NONE
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NONE
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NONE
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3MB
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(4) 44256
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(4) 44256
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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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(2) 1M x 9
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(2) 1M x 9
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4MB
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(4) 441000
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(4) 441000
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NONE
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NONE
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5MB
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(4) 44256
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(4) 44256
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(2) 1M x 9
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(2) 1M x 9
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8MB
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(4) 444000
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NONE
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NONE
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NONE
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16MB
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(4) 444000
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(4) 444000
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NONE
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NONE
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16MB
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NONE
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NONE
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(2) 4M x 9
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(2) 4M x 9
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DRAM JUMPER CONFIGURATION
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Size
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J6
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J7
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512KB
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pins 2 & 3 closed
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pins 2 & 3 closed
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1MB
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pins 2 & 3 closed
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pins 2 & 3 closed
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1.5MB
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pins 2 & 3 closed
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pins 2 & 3 closed
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2MB
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pins 2 & 3 closed
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pins 2 & 3 closed
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2MB
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pins 2 & 3 closed
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pins 2 & 3 closed
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3MB
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pins 2 & 3 closed
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pins 2 & 3 closed
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4MB
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pins 1 & 2 closed
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pins 1 & 2 closed
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4MB
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pins 2 & 3 closed
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pins 2 & 3 closed
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5MB
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pins 2 & 3 closed
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pins 2 & 3 closed
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8MB
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pins 2 & 3 closed
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pins 2 & 3 closed
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16MB
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pins 2 & 3 closed
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pins 2 & 3 closed
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16MB
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pins 1 & 2 closed
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pins 1 & 2 closed
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SERIAL PORT CONFIGURATION
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CN1
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CN2
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J16
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J17
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J18
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COM1
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COM2
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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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COM1
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Disabled
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pins 1 & 2 closed
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pins 2 & 3 closed
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pins 1 & 2 closed
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Disabled
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COM1
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pins 2 & 3 closed
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pins 1 & 2 closed
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pins 2 & 3 closed
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COM2
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COM1
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pins 2 & 3 closed
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pins 1 & 2 closed
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pins 1 & 2 closed
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COM2
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Disabled
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pins 2 & 3 closed
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pins 2 & 3 closed
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pins 1 & 2 closed
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Disabled
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COM2
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pins 1 & 2 closed
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pins 1 & 2 closed
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pins 2 & 3 closed
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Disabled
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Disabled
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N/A
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pins 2 & 3 closed
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pins 2 & 3 closed
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PARALLEL PORT CONFIGURATION
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LPT
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J19
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J20
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J21
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LPT1
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pins 1 & 2 closed
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pins 2 & 3 closed
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pins 1 & 2 closed
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LPT2
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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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LPT3
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pins 2 & 3 closed
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pins 1 & 2 closed
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pins 1 & 2 closed
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Disabled
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pins 2 & 3 closed
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pins 2 & 3 closed
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pins 2 & 3 closed
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.
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VIDEO BOARD CONFIGURATION
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Function
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Jumper
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Position
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VGA board enabled
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J1
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Closed
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VGA board disabled (VESA enabled)
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J1
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Open
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VGA 1024 x 768 mode disabled
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J2
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Open
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VGA 1024 x 768 mode enabled
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J2
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Closed
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Monitor type select color
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J3
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Open
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Monitor type select monochrome
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J3
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Closed
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