IPTools.net.ua

Processor

80386DX/CX486DLC

Processor Speed

33/40MHz

Chip Set

OPTI

Max. Onboard DRAM

32MB

SRAM Cache

64/128/256KB

BIOS

AMI

Dimensions

254mm x 220mm

I/O Options

None

NPU Options

80387/CX83D87

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Reset switch

J20/pins 9 & 19

Speaker

J20/pins 1-4

IDE interface LED

J20/pins 10 & 20

Turbo switch

J20/pins 7 & 17

IDE interface LED

J21

Turbo LED

J20/pins 8 & 18

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

AT bus clock select CPU/4 (CPU 33MHz)

JP2

open

AT bus clock select CPU/5 (CPU 40MHz)

JP2

closed

CMOS memory normal operation (internal battery)

JP3

pins 1 & 2 closed

CMOS memory normal operation (external battery)

JP3

open

CMOS memory clear

JP3

pins 2 & 3 closed

Monitor type select color

JP4

closed

Monitor type select monochrome

JP4

open

NPU synchronous with CPU

JP20

open

NPU synchronous with oscillator installed at OSC1

JP20

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) 256K x 9

(4) 1M x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

SRAM CONFIGURATION

Size

Cache

Location

TAG

64KB

(8) 8K x 8

Banks 0 & 1

(1) 8K x 8

128KB

(4) 32K x 8

Bank 0

(1) 8K x 8

256KB

(8) 32K x 8

Banks 0 & 1

(1) 32K x 8

SRAM JUMPER CONFIGURATION

Resistor

64KB

128KB

256KB

RND

closed

open

open

RNE

open

closed

open

RNF

open

open

closed

CPU RESISTTOR NETWORK CONFIGURATION

CPU(PQFP)

CPU(PGA)

JP19

RNA

RNB

80386DX

CX486DLC

closed

open

closed

NONE

CX486DLC

N/A

open

closed

80386DX

80386DX

closed

closed

open

NONE

80386DX

N/A

closed

open

80386DX

NONE

open

closed

open

Note:The CPUs in bold-italic are the active CPUs.