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486VL3 (MV026)

EDOM INTERNATIONAL CORPORATION

486VL3 (MV026)

Processor

CX486M6/80486SX/80487SX/CX486M7/80486DX/80486DX2/80486DX4/ Pentium Overdrive

Processor Speed

25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz

Chip Set

OPTI

Max. Onboard DRAM

128MB

Cache

64/128/256KB

BIOS

AMI/Award

Dimensions

254mm x 220mm

I/O Options

32-bit VESA local bus slots (3), green PC connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Speaker

JP18

Power LED & keylock

J2

Green PC connector

JP32

Turbo switch

JP16

Reset switch

S1

Turbo LED

JP17

32-bit VESA local bus slots

SL1 - SL3

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

CMOS memory normal operation

JP26

pins 2 & 3 closed

 

CMOS memory clear

JP26

pins 1 & 2 closed

»

Cyrix M7 clock speed select 1x

JP27

pins 1 & 2 closed

 

Cyrix M7 clock speed select 2x

JP27

pins 2 & 3 closed

 

Other CPU types

JP27

Open

»

Monitor type select monochrome

JP30

Open

 

Monitor type select color

JP30

Closed

»

Factory configured - do not alter

JP37

N/A

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

2MB

(1) 256K x 36

(1) 256K x 36

NONE

NONE

2MB

(1) 512K x 36

NONE

NONE

NONE

4MB

(1) 1M x 36

NONE

NONE

NONE

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

4MB

(1) 512K x 36

NONE

(1) 512K x 36

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

10MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

10MB

(1) 512K x 36

NONE

(1) 2M x 36

NONE

16MB

(1) 4M x 36

NONE

NONE

NONE

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 2M x 36

NONE

(1) 2M x 36

NONE

32MB

(1) 4M x 36

NONE

(1) 4M x 36

NONE

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

64MB

(1) 16M x 36

NONE

NONE

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

128MB

(1) 16M x 36

NONE

(1) 16M x 36

NONE

128MB

(1) 16M x 36

(1) 16M x 36

NONE

NONE

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

NONE

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 16K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP10

JP11

JP13

JP35

64KB

Open

Open

pins 2 & 3 closed

pins 1 & 2 closed

128KB

Open

Closed

pins 1 & 2 closed

pins 1 & 2 closed

256KB

Closed

Closed

pins 2 & 3 closed

pins 2 & 3 closed

256KB

Closed

Closed

pins 2 & 3 closed

pins 1 & 2 closed

CPU TYPE CONFIGURATION

Type

JP3

JP5

JP8

JP9

CX486M6

Open

Open

pins 2 & 3 closed

pins 1 & 2 closed

80486SX

Open

Open

pins 2 & 3 closed

Open

80487SX

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

Open

CX486M7

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

Open

80486DX

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

Open

80486DX2

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

Open

80486DX4

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

Open

P24D

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

Open

Pentium Overdrive

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

CPU TYPE CONFIGURATION (CON’T)

Type

JP12

JP22

JP23

JP45

JP50

CX486M6

Open

1 & 2

Open

Open

2 & 3

80486SX

Open

1 & 2

Open

Closed

Open

80487SX

Open

1 & 2

Open

Closed

Open

CX486M7

Open

1 & 2

Open

Open

2 & 3

80486DX

Open

1 & 2

Open

Closed

Open

80486DX2

Open

1 & 2

Open

Closed

Open

80486DX4

Open

1 & 2

Open

Closed

Open

P24D

Closed

1 & 2

Closed

Closed

1 & 2

Pentium Overdrive

Open

2 & 3

Open

Closed

Open

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

JP24

JP25

JP36

Non SL-enhanced

Open

Open

Open

SL-enhanced

Closed

Closed

Closed

PQFP CPU CONFIGURATION

Type

JP1

JP6

JP7

Disabled

Closed

Closed

Closed

Enabled

Open

Open

Open

CPU SPEED CONFIGURATION

Speed

JP38

JP39

JP40

JP48

25MHz

Closed

Closed

Open

pins 1 & 2 closed

33MHz

Closed

Open

Closed

pins 1 & 2 closed

40MHz

Open

Closed

Closed

pins 1 & 2 closed

50iMHz

Closed

Closed

Open

pins 2 & 3 closed

50MHz

Closed

Closed

Closed

pins 1 & 2 closed

66iMHz

Closed

Open

Open

pins 2 & 3 closed

75iMHz

Closed

Closed

Open

pins 2 & 3 closed

100iMHz

Closed

Open

Open

pins 2 & 3 closed

CPU SPEED CONFIGURATION (80486DX4 ONLY)

Speed

JP43

2x

pins 1 & 2 closed

2.5x

pins 2 & 3 closed

3x

Open

CPU VOLTAGE CONFIGURATION

Speed

JP44

3.45v

pins 2 & 3, 5 & 6 closed

5v

pins 1 & 2, 4 & 5 closed

VESA WAIT STATE CONFIGURATION

Wait states

JP33

0 wait states

Open

1 wait state

Closed

BUS SPEED CONFIGURATION

CPU speed

JP34

JP46

<= 33MHz

Open

pins 2 & 3 closed

> 33MHz

Closed

pins 1 & 2 closed