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386DX CACHE

UNIDENTIFIED

386DX CACHE

Processor

80386DX/CX486DLC

Processor Speed

25/33/40MHz

Chip Set

OPTI

Max. onboard DRAM

32MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

240mm x 220mm

I/O Options

None

NPU Options

80387DX/CX487DLC

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Turbo LED

JP12

Power LED & keylock

J18

Turbo switch

JP11

Speaker

J19

Reset switch

SW1

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

ISA bus clock iOSC/4 (10MHz)

JP2

Closed

 

ISA bus clock iOSC/5 (8MHz)

JP2

Open

CMOS memory normal operation

JP3

pins 2 & 3 closed

 

CMOS memory clear

JP3

pins 1 & 2 closed

Monitor type select color

JP4

Closed

 

Monitor type select monochrome

JP4

Open

ATCLK iOSC/2

JP7

pins 1 & 2 closed

 

ATCLK iOSC/1

JP7

pins 2 & 3 closed

CACHE 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

CACHE JUMPER CONFIGURATION

Size

JP6

JP8

JP9

JP10

JP17

JP18

64KB

Open

Open

Open

pins 2 & 3

Open

Open

128KB

Closed

Closed

Open

pins 1 & 2

Open

Closed

256KB

Closed

Closed

Closed

pins 2 & 3

Closed

Closed

Note:Pins designated should be in the closed position.

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

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

CPU TYPE CONFIGURATION

CPU

JP1

JP5

JP13

80386DX

Open

Open

Open

CX486DLC

Open

Closed

Closed