HwMuseum | Index

UNIDENTIFIED

386 MB

Processor

80386

Processor Speed

16/20/25MHz

Chip Set

C & T

Video Chip Set

None

Maximum Onboard Memory

16MB (8MB on external memory card)

Maximum Video Memory

None

Cache

None

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

External memory card

NPU Options

80387

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo switch

J15

Reset switch

J19

Turbo LED

J16

External battery

J20

Power LED & keylock

J17

External memory card

SL1

Speaker

J18

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

OSC3 used as processor clock

J15

Pins 2 & 3 closed

 

OSC2 used as processor clock

J15

Open

 

Pipeline mode enabled

JP2

Closed

 

Pipeline mode disabled

JP2

Open

 

NPU synchronous with CPU

JP3

Closed

 

NPU asynchronous with CPU

JP3

Open

 

Monitor type select color

JP6

Closed

 

Monitor type select monochrome

JP6

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

None

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

None

5MB

(4) 256K x 9

(4) 1M x 9

5MB

(4) 1M x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

Note: From 8MB - 16MB, install memory card at SL1. Make sure the size of DRAM chips is the same on both the motherboard and the memory card.

DRAM JUMPER CONFIGURATION

Setting

JP4

JP5

Lowest address banks enabled

Pins 1 & 3, 2 & 4 closed

Pins 1 & 3, 2 & 4 closed

Highest address banks enabled

Pins 3 & 5, 4 & 6 closed

Pins 3 & 5, 4 & 6 closed

NPU SELECTION

Type

JP1

JP7

Installed

Closed

Closed

Not installed

Open

Open