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STEP 386SX20 GATE ARRAY EV-18107C
EVEREX SYSTEMS, INC.
STEP 386SX20 GATE ARRAY EV-18107C
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Processor
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80386SX
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Processor Speed
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20MHz
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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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Cache
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64KB
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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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Floppy drive interface, IDE interface, parallel port, serial ports (2)
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NPU Options
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80387SX
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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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Parallel port
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J7
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Floppy drive interface
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U100
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IDE interface
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J8
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Serial port 2
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U106
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Speaker
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JP2
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Serial port 1
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U107
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External battery
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JP9
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LED connector
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LED
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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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Cache LED disabled
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J3
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Closed
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Cache LED enabled
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J3
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Open
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BIOS type select 27256
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JP8
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Open
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BIOS type select 27512
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JP8
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Closed
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Floppy drive interface enabled
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JP9
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pins 1 & 2 closed
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Floppy drive interface disabled
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JP9
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pins 3 & 4 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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512KB
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(2) 256K x 9
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NONE
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1MB
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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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(2) 1M x 9
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NONE
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2.5MB
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(2) 256K x 9
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(2) 1M x 9
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4MB
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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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(2) 4M x 9
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NONE
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8.5MB
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(2) 256K x 9
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(2) 4M x 9
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10MB
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(2) 1M x 9
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(2) 4M x 9
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16MB
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(2) 4M x 9
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(2)4M x 9
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ONBOARD SERIAL/PARALLEL CONFIGURATION
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Port
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Connector
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IRQ
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Address
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COM1
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U107
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IRQ4
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3F8h
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COM2
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U106
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IRQ3
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2F8h
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LPT2
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J7
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IRQ7
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378h
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Note:The onboard serial & parallel port configurations are fixed and cannot be altered or disabled.
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