UNIDENTIFIED

TTL 386-33/25

Processor

80386DX

Processor Speed

25/33MHz

Chip Set

Unknown

Max. onboard DRAM

16MB

Cache

None

BIOS

AMI

Dimensions

325mm x 308mm

I/O Options

32-bit external memory card

NPU Options

80387DX

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

J1

External battery

J22

Power LED & keylock

J2

Turbo Switch

J24

Turbo LED

J16

32-bit external memory card

S1

Reset switch

J18

   

Note:The exact location of J24 is unknown.

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Power good signal detect from power supply

JP

pins 1 & 2 closed

 

Power good signal detect from board

JP

pins 2 & 3 closed

»

Factory configured - do not alter

JP13

pins 1 & 3, 2 & 4 closed, 5 & 6 open

»

Monitor type select color

JP19

Closed

 

Monitor type select monochrome

JP19

Open

DRAM CONFIGURATION

Size

Bank 0 (ML1, ML2, ML3, ML4)

Bank 1 (MH1, MH2, MH3, MH4)

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

DRAM JUMPER CONFIGURATION

Size

J12

1MB

pins 1 & 2, 3 & 4 closed, pins 5 & 6 open

2MB

pins 1 & 2, 5 & 6 open, pins 3 & 4 closed

4MB

pins 3 & 4, 5 & 6, open, pins 1 & 2 closed

8MB

pins 1 & 2, 3 & 4 ,5 & 6 open

NPU CONFIGURATION

NPU

J14

Enabled

Pins 1 & 2 open, pins 3 & 5, 4 & 6 closed

Disabled

pins 1 & 3, 2 & 4 closed, pins 5 & 6 open