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CACHE 486-25/33 EISA (Model 321)

CACHE COMPUTERS, INC.

CACHE 486-25/33 EISA (Model 321)

   

Processor

80486DX

Processor Speed

25/33MHz

Chip Set

Intel

Max. Onboard DRAM

64MB

Cache

128/256KB

BIOS

Phoenix

Dimensions

355mm x 304mm

I/O Options

None

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

JP4

Reset

JP18

Auxiliary keyboard

JP5

Power LED & keylock

JP19

Speaker

JP17

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Factory configured - do not alter

JP11

N/A

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(4) 256K x 9

NONE

NONE

NONE

2MB

(4) 256K x 9

(4) 256K x 9

NONE

NONE

3MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

NONE

4MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

NONE

NONE

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

12MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

NONE

16MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

NONE

NONE

32MB

(4) 4M x 9

(4) 4M x 9

NONE

NONE

48MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

NONE

64MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

DRAM JUMPER CONFIGURATION

SIMM Size

JP9

JP10

JP13

JP14

256KB

pins 1&2 closed

pins 2&3 closed

pins 2&3 closed

pins 2&3 closed

1MB

pins 1&2 closed

pins 1&2 closed

pins 2&3 closed

pins 2&3 closed

4MB

pins 2&3 closed

pins 1&2 closed

pins 1&2 closed

pins 1&2 closed

DRAM SWITCH CONFIGURATION

SIMM Size

SW3/1

SW3/2

SW3/3

SW3/4

256KB

On

Off

Off

Off

1MB

Off

Off

On

Off

4MB

Off

On

On

Off

CACHE CONFIGURATION

Size

Bank 0

128KB

(4) 32K x 8

256KB

(8) 32K x 8

Note:Locations and sizes of cache and tag are unknown.

CACHE JUMPER CONFIGURATION

Size

JP15

JP16

JP20

JP21

128KB

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

256KB

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

CPU SPEED CONFIGURATION

CPU speed

Bus speed

SW2/1

SW2/2

SW2/3

SW2/4

25MHz

8.33MHz

On

On

Off

Off

33MHz

8.25MHz

Off

On

Off

Off