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SX386

OGIVAR, INC.

SX386

Processor

80386SX

Processor Speed

12/16MHz

Chip Set

VLSI

Max. Onboard DRAM

2MB

Cache

None

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo switch

J14

Power LED & keylock

P5

Speaker

P3

External battery

P8

Reset switch

P4

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

AT bus clock speed select 8MHz

J2

pins 1 & 2 closed

 

AT bus clock speed select 12MHz

J2

pins 2 & 3 closed

BIOS type select 27256

J4

pins 2 & 3 closed

 

BIOS type select 27128

J4

pins 1 & 2 closed

Battery type select alkali

J7

Closed

 

Battery type select lithium

J7

Open

Power good signal detect from power supply

J8

pins 2 & 3 closed

 

Power good signal detect from board

J8

pins 1 & 2 closed

Memory wait state select 0 wait states

J11

Closed

 

Memory wait state select 1 wait state

J11

Open

Memory page interleave enabled

J12

Open

Memory page interleave disabled

J12

Closed

Turbo enabled

J14

Open

 

Turbo disabled

J14

Closed

Factory configured - do not alter

SW1/1

Off

Factory configured - do not alter

SW1/2

Off

Monitor type select color

SW1/3

On

 

Monitor type select monochrome

SW1/3

Off

Factory configured - do not alter

SW1/4

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

512KB

(4) 44256

NONE

NONE

NONE

1MB

(4) 44256

(4) 44256

NONE

NONE

1.5MB

(4) 44256

(4) 44256

(4) 44256

NONE

2MB

(4) 44256

(4) 44256

(4) 44256

(4) 44256

DRAM PARITY CONFIGURATION

Size

Parity 0

Parity 1

Parity 2

Parity 3

512KB

(2) 41256

NONE

NONE

NONE

1MB

(2) 41256

(2) 41256

NONE

NONE

1.5MB

(2) 41256

(2) 41256

(2) 41256

NONE

2MB

(2) 41256

(2) 41256

(2) 41256

(2) 41256

CPU SPEED CONFIGURATION

Speed

J3

J10

12MHz

pins 2 & 3 closed

Open

16MHz

pins 1 & 2 closed

pins 1 & 2 closed