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Processor

80386DX/CX486DLC/80486SX/80487SX/80486DX/80486DX2

Processor Speed

20/25/33/40/50(internal)/50/66(internal)MHz

Chip Set

SIS

Max. Onboard DRAM

32MB

SRAM Cache

64/256KB

BIOS

AMI

Dimensions

331mm x 219mm

I/O Options

None

NPU Options

80387/CX387DLC/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

J1

Turbo LED

JP1

Keylock

J2

Reset switch

SW1

External battery

J19

Turbo switch

SW2

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select color

JP19

closed

Monitor type select monochrome

JP19

open

CMOS memory normal operation (internal battery)

JP18

pins 2 & 3 closed

CMOS memory clear

JP18

pins 1 & 2 closed

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) 1M x 9

(4) 256K 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

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CPU TYPE JUMPER CONFIGURATION

CPU

JP2

JP3

JP4

JP11

80486DX2 1

pins 1 & 2 closed

pins 2 & 3 closed

closed

pins 1 & 2 closed

80486DX (50MHz) 1

pins 1 & 2 closed

pins 2 & 3 closed

closed

pins 2 & 3 closed

80486DX 1

pins 1 & 2 closed

pins 2 & 3 closed

closed

pins 1 & 2 closed

80487SX 1

pins 1 & 2 closed

pins 1 & 2 closed

closed

pins 1 & 2 closed

CX486DLC 1

pins 2 & 3 closed

open

open

pins 1 & 2 closed

80486SX 1

pins 2 & 3 closed

open

open

pins 1 & 2 closed

80368DX 2

N/A

N/A

N/A

pins 1 & 2 closed

Note 1 :Jumpers JP6, JP7, JP12, JP13, JP14, JP15, JP16, JP17, JP20, JP21 pins 2 & 3 closed.

Note 2 :Jumpers JP6, JP7, JP12, JP13, JP14, JP15, JP16, JP17, JP20, JP21 pins 1 & 2 closed.

SRAM JUMPER CONFIGURATION

Size

JP5

JP8

JP9

JP10

64KB

open

open

open

open

256KB

closed

closed

closed

open

SRAM CONFIGURATION

Size

Cache SRAM

TAG

64KB

(8) 8K x 8

(1) 8K x 8

256KB

(8) 32K x 8

(1) 32K x 8