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U386

UNIDENTIFIED

U386

Processor

80386DX

Processor Speed

33/40MHz

Chip Set

OPTI

Max. Onboard DRAM

32MB

SRAM Cache

32/128KB

BIOS

AMI

Dimensions

220mm x 220mm

I/O Options

NONE

NPU Options

80387

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Reset switch

J4

Turbo LED

J2

Speaker

J5

Turbo switch

J3

Power LED & keylock

J6

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

CMOS memory normal operation

W1

closed

 

CMOS memory clear

W1

open

Monitor type select color

W2

closed

 

Monitor type select monochrome

W2

open

NPU disabled

W4

open

 

NPU enabled

W4

closed

Parity check enabled

W16

pins 2 & 3 closed

 

Parity check disabled

W16

pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

4MB

(4) 1M x 9

NONE

5MB

(4) 256K x 9

(4) 1M x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

SRAM JUMPER CONFIGURATION

Jumper

32KB

128KB

W8

pins 1 & 2 closed

pins 2 & 3 closed

W9

pins 1 & 2 closed

pins 2 & 3 closed

W10

pins 1 & 2 closed

pins 2 & 3 closed

W11

pins 1 & 2 closed

pins 2 & 3 closed

W12

pins 2 & 3 closed

pins 2 & 3 closed

W13

pins 1 & 2 closed

pins 1 & 2 closed

W14

pins 1 & 2 closed

pins 1 & 2 closed

W15

open

pins 1 & 2 closed

SRAM CONFIGURATION

Size

Cache SRAM

TAG

32KB

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

(1) 8K x 8