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386SI4 Motherboard Settings and Configuration






UNIDENTIFIED

386SI4

Processor

80386DX/CX486DLC

Processor Speed

33/40MHz

Chip Set

C & T

Max. Onboard DRAM

32MB

SRAM Cache

64/128/256KB

BIOS

AMI

Dimensions

254mm x 218mm

I/O Options

None

NPU Options

80387/CX83D87/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo LED

J3

Reset switch

J6

Turbo switch

J4

Power LED & keylock

J7

Speaker

J5

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Factory configured - do not alter

JP1

open

Monitor type select color

JP2

closed

 

Monitor type select monochrome

JP2

open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

JP11

1MB

(4) 256K x 9

NONE

pins 2 & 3 closed

2MB

(4) 256K x 9

(4) 256K x 9

pins 1 & 2 closed

4MB

(4) 1M x 9

NONE

pins 2 & 3 closed

5MB

(4) 1M x 9

(4) 256K x 9

pins 2 & 3 closed

8MB

(4) 1M x 9

(4) 1M x 9

pins 1 & 2 closed

16MB

(4) 4M x 9

NONE

pins 2 & 3 closed

17MB

(4) 4M x 9

(4) 256K x 9

pins 2 & 3 closed

20MB

(4) 4M x 9

(4) 1M x 9

pins 2 & 3 closed

32MB

(4) 4M x 9

(4) 4M x 9

pins 1 & 2 closed

SRAM JUMPER CONFIGURATION

Jumper

64KB

128KB

256KB

SR1

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

SR2

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

SR3

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

SR4

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

SR5

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

SR6

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

SR7

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

SR8

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

SR9

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

SRAM CONFIGURATION

Size

Cache SRAM

Location

TAG

64KB

(8) 8K x 8

Banks 0 & 1

(1) 8K x 8

128KB

(4) 32K x 8

Bank 0

(1) 8K x 8

256KB

(8) 32K x 8

Banks 0 & 1

(1) 8K x 8








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