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386S
AMERICAN RESEARCH CORPORATION
386S
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Processor
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80386DX
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Processor Speed
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16/20MHz
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Chip Set
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Unknown
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Max. Onboard DRAM
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8MB
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Cache
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None
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BIOS
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Phoenix
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Dimensions
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333mm x 305mm
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I/O Options
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32-bit external memory card slots (2), MIPS meter connector
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NPU Options
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80387
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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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MIPS meter
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CON1
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Speaker
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CON5
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External battery
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CON2
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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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| »
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Monitor type select color
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J9
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pins 1 & 2 closed
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Monitor type select monochrome
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J9
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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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2MB
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(4) 256K x 9
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(4) 256K 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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Slot S1
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Slot S2
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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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4MB
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(4) 256K x 9
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(4) 256K x 9
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2MB
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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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2MB
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2MB
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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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10MB
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(4) 1M x 9
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(4) 1M x 9
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2MB
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NONE
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12MB
1
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(4) 1M x 9
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(4) 1M x 9
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2MB
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2MB
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12MB
2
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(4) 256K x 9
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(4) 256K x 9
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8MB
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2MB
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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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8MB
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NONE
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DRAM JUMPER CONFIGURATION
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Size
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J3
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J4
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J5
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J6
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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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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 2 & 3 closed
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pins 2 & 3 closed
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pins 2 & 3 closed
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6MB
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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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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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pins 2 & 3 closed
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pins 1 & 2 closed
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10MB
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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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pins 1 & 2 closed
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12MB
1
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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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pins 1 & 2 closed
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12MB
2
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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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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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pins 1 & 2 closed
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pins 1 & 2 closed
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Note
1
:Use this setting when 2MB is installed on board and in slot S1 and S2.
Note
2
:Use this setting when 2MB is installed on board and in slot S1, and 8MB is installed in slot S2.
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NPU CONFIGURATION
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Setting
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J1
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J2
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Disabled
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Open
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Closed
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Enabled
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Closed
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Open
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BIOS CONFIGURATION
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Size
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J7
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J8
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27128
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pins 1 & 2 closed
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pins 1 & 2 closed
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27256
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pins 2 & 3 closed
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pins 1 & 2 closed
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27512
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pins 2 & 3 closed
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pins 2 & 3 closed
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