HwMuseum | Index

EFA CORPORATION

ECA 4M33

Processor

80486SX/80486DX

Processor Speed

20/25/33MHz

Chip Set

UMC

Max. Onboard DRAM

64MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Power LED & keylock

J22

Turbo LED

J13

Turbo switch

J23

Speaker

J21

Reset switch

J24

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Monitor type select color

J5

Open

 

Monitor type select monochrome

J5

Closed

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

5MB

(4) 256K x 9

(4) 1M x 9

NONE

NONE

6MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

9MB

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

NONE

10MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

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

20MB

(4) 1M x 9

(4) 4M x 9

NONE

NONE

24MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

NONE

32MB

(4) 4M x 9

(4) 4M x 9

NONE

NONE

36MB

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

NONE

40MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

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

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

64KB

(4) 8K x 8

(4) 8K x 8

(4) 8K x 4

128KB

(4) 32K x 8

NONE

(4) 32K x 4

256KB

(4) 32K x 8

(4) 32K x 8

(4) 32K x 4

CACHE JUMPER CONFIGURATION

Size

J17

J18

J19

J20

J25

64KB

Open

1 & 2

1 & 2

1 & 2

2 & 3

128KB

1 & 2

2 & 3

1 & 2

2 & 3

2 & 3

256KB

2 & 3

1 & 2

2 & 3

2 & 3

2 & 3

Note:Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

J9

J10

80486SX

Closed

pins 2 & 3 closed

80486DX

Open

pins 1 & 2 closed