EFA CORPORATION

ECA 510

Processor

80386DX/80486SX/80486DX

Processor Speed

16/20/25/33/40/50MHz

Chip Set

UMC

Max. Onboard DRAM

32MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

280mm x 218mm

I/O Options

None

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J4

Power LED & keylock

J18

Reset switch

J15

Speaker

J19

Turbo LED

J16

Riser card

R1

Turbo switch

J17

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

Monitor type select color

J5

Open

 

Monitor type select monochrome

J5

Closed

»

Factory configured - do not alter

J10

N/A

»

Factory configured - do not alter

J21

N/A

»

BIOS type select 27512

JP1

pins 2 & 3 closed

 

BIOS type select 271024

JP1

pins 1 & 2 closed

»

Factory configured - do not alter

S1/5

N/A

»

Factory configured - do not alter

S1/8

N/A

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

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

64KB

(4) 8K x 8

(4) 8K x 8

(4) 16K x 4

128KB

(4) 32K x 8

NONE

(4) 16K x 4

256KB

(4) 32K x 8

(4) 32K x 8

(4) 16K x 4

CACHE JUMPER CONFIGURATION

Size

J1

J2

J3

J13

J14

64KB

2 & 3

1 & 2

1 & 2

1 & 2

N/A

128KB

2 & 3

2 & 3

1 & 2

2 & 3

1 & 2

256KB

2 & 3

2 & 3

2 & 3

1 & 2

2 & 3

Note:Pins designated should be in the closed position.

CPU SWITCH CONFIGURATION (A)

Type

S1/1

S1/2

S1/3

S1/4

S1/6

S1/7

S3/1

S3/2

S3/3

S3/4

80386DX

On

On

On

On

Off

Off

On

On

Off

Off

80486SX

Off

Off

Off

Off

On

On

Off

Off

On

On

80486DX

Off

Off

Off

Off

On

On

On

On

Off

Off

Note: All CPU configurations (Tables A & B) must be set for proper operation.

CPU TYPE CONFIGURATION (B)

Type

S2/1

S2/2

S2/3

S2/4

80386DX-16

Off

Off

On

On

80386DX-20

Off

Off

On

Off

80386DX-33

On

On

Off

On

80386DX-40

On

On

On

On

80486SX-20

On

Off

On

Off

80486DX-25

On

Off

Off

Off

80486DX-33

On

Off

Off

On

80486DX-50

Off

Off

Off

Off