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CX 425S CACHE

CRYSTAL COMPUTER SYSTEMS

CX 425S CACHE

   

Processor

80386SX/CX486SLC

Processor Speed

25/33MHz

Chip Set

OPTI

Max. Onboard DRAM

16MB

Cache

16/32/64/128KB

BIOS

AMI/Award

Dimensions

220mm x 220mm

I/O Options

None

NPU Options

80387SX/CX83S87

   

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Turbo LED

JP4

Power LED & keylock

J18

Reset switch

SW1

Speaker

J19

Turbo switch

SW2

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Battery type select internal

JP1

pins 2 & 3 closed

 

Battery type select external

JP1

Open

Monitor type select color (Auto detect)

JP2

Open

 

Monitor type select monochrome

JP2

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

512KB

(2) 256K x 9

NONE

NONE

NONE

1MB

(2) 256K x 9

(2) 256K x 9

NONE

NONE

1.5MB

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

NONE

2MB

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

2MB

(2) 1M x 9

NONE

NONE

NONE

2.5MB

(2) 1M x 9

(2) 256K x 9

NONE

NONE

3MB

(2) 1M x 9

(2) 256K x 9

(2) 256K x 9

NONE

3.5MB

(2) 1M x 9

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

4MB

(2) 1M x 9

(2) 1M x 9

NONE

NONE

4.5MB

(2) 1M x 9

(2) 1M x 9

(2) 256K x 9

NONE

5MB

(2) 1M x 9

(2) 1M x 9

(2) 256K x 9

(2) 256K x 9

6MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

NONE

6.5MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

(2) 256K x 9

8MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

8MB

(2) 4M x 9

NONE

NONE

NONE

8.5MB

(2) 4M x 9

(2) 256K x 9

NONE

NONE

9MB

(2) 4M x 9

(2) 256K x 9

(2) 256K x 9

NONE

9.5MB

(2) 4M x 9

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

10MB

(2) 4M x 9

(2) 1M x 9

NONE

NONE

10.5MB

(2) 4M x 9

(2) 1M x 9

(2) 256K x 9

NONE

11MB

(2) 4M x 9

(2) 1M x 9

(2) 256K x 9

(2) 256K x 9

12MB

(2) 4M x 9

(2) 1M x 9

(2) 1M x 9

NONE

12.5MB

(2) 4M x 9

(2) 1M x 9

(2) 1M x 9

(2) 256K x 9

14MB

(2) 4M x 9

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

16MB

(2) 4M x 9

(2) 4M x 9

NONE

NONE

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG (U32)

TAG (U33)

16KB

(2) 8K x 8

NONE

(1) 8K x 8

NONE

32KB

(2) 8K x 8

(2) 8K x 8

(1) 8K x 8

NONE

64KB

(2) 32K x 8

NONE

(1) 8K x 8

NONE

128KB

(2) 32K x 8

(2) 32K x 8

(1) 8K x 8

(1) 8K x 8

CACHE JUMPER CONFIGURATION

Size

JP3

JP5

JP6

JP7

JP8

JP9

16KB

Open

Open

Open

2 & 3

Open

2 & 3

32KB

Open

Closed

Open

2 & 3

Open

2 & 3

64KB

Open

Closed

Closed

1 & 2

Open

2 & 3

128KB

Closed

Closed

Closed

1 & 2

Closed

1 & 2

Note: Pins designated should be in the closed position.