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VLB486 AL5 (ALI-486G)

COMPUTREND SYSTEMS, INC.

VLB486 AL5 (ALI-486G)

Processor

80486SX/SL80486SX/80486DX/SL80486DX/CXM7/AM486DX2/80486DX2/ SL80486DX2/AM486DX4/80486DX4/P24D/P24T

Processor Speed

25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz

Chip Set

ALI

Max. Onboard DRAM

64MB

Cache

128/256KB

BIOS

AMI

Dimensions

250mm 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

JB

Reset switch

JFP pins 19 & 20

Power LED & keylock

JFP pins 1 - 5

Green PC connector (monitor)

JG1

Speaker

JFP pins 7 - 10

Green PC LED

JG2

Turbo LED

JFP pins 12 & 13

Green PC connector

JG3

Turbo switch

JFP pins 15 - 17

32-bit VESA local bus slots

SL1 - SL3

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Battery type select internal

JB

Pins 2 & 3 closed

 

Battery type select external

JB

Closed

Factory configured - do not alter

JC2

N/A

Factory configured - do not alter

JC3

N/A

Monitor type select monochrome

JP1

Pins 2 & 3 closed

 

Monitor type select color

JP1

Pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

None

None

None

2MB

(1) 512K x 36

None

None

None

2MB

(1) 256K x 36

(1) 256K x 36

None

None

3MB

(1) 512K x 36

(1) 256K x 36

None

None

3MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

None

3MB

(1) 256K x 36

(1) 512K x 36

None

None

4MB

(1) 1M x 36

None

None

None

4MB

(1) 512K x 36

(1) 256K x 36

(1) 256K x 36

None

4MB

(1) 512K x 36

(1) 512K x 36

None

None

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

5MB

(1) 1M x 36

(1) 256K x 36

None

None

5MB

(1) 512K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

5MB

(1) 256K x 36

(1) 1M x 36

None

None

6MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

None

6MB

(1) 1M x 36

(1) 512K x 36

None

None

6MB

(1) 512K x 36

(1) 1M x 36

None

None

7MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

8MB

(1) 2M x 36

None

None

None

8MB

(1) 1M x 36

(1) 1M x 36

None

None

9MB

(1) 2M x 36

(1) 256K x 36

None

None

9MB

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

None

9MB

(1) 256K x 36

(1) 2M x 36

None

None

10MB

(1) 2M x 36

(1) 256K x 36

(1) 256K x 36

None

10MB

(1) 2M x 36

(1) 512K x 36

None

None

10MB

(1) 512K x 36

(1) 1M x 36

(1) 1M x 36

None

10MB

(1) 512K x 36

(1) 2M x 36

None

None

12MB

(1) 2M x 36

(1) 1M x 36

None

None

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

None

12MB

(1) 1M x 36

(1) 2M x 36

None

None

13MB

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 4M x 36

None

None

None

16MB

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

None

16MB

(1) 2M x 36

(1) 2M x 36

None

None

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

17MB

(1) 4M x 36

(1) 256K x 36

None

None

17MB

(1) 256K x 36

(1) 4M x 36

None

None

18MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

None

18MB

(1) 4M x 36

(1) 512K x 36

None

None

18MB

(1) 512K x 36

(1) 4M x 36

None

None

19MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

20MB

(1) 4M x 36

(1) 1M x 36

None

None

20MB

(1) 1M x 36

(1) 4M x 36

None

None

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

None

24MB

(1) 4M x 36

(1) 2M x 36

None

None

24MB

(1) 2M x 36

(1) 4M x 36

None

None

28MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 8M x 36

None

None

None

32MB

(1) 4M x 36

(1) 4M x 36

None

None

33MB

(1) 8M x 36

(1) 256K x 36

None

None

33MB

(1) 256K x 36

(1) 4M x 36

(1) 4M x 36

None

33MB

(1) 256K x 36

(1) 8M x 36

None

None

34MB

(1) 8M x 36

(1) 256K x 36

(1) 256K x 36

None

34MB

(1) 8M x 36

(1) 512K x 36

None

None

34MB

(1) 512K x 36

(1) 4M x 36

(1) 4M x 36

None

34MB

(1) 512K x 36

(1) 8M x 36

None

None

36MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

None

36MB

(1) 1M x 36

(1) 8M x 36

None

None

40MB

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

None

40MB

(1) 8M x 36

(1) 2M x 36

None

None

40MB

(1) 2M x 36

(1) 4M x 36

(1) 4M x 36

None

40MB

(1) 2M x 36

(1) 8M x 36

None

None

48MB

(1) 8M x 36

(1) 4M x 36

None

None

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

None

48MB

(1) 4M x 36

(1) 8M x 36

None

None

49MB

(1) 256K x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

52MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

(1) 8M x 36

None

None

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

None

(1) 8K/16K/32K x 8

256KB (A)

(4) 32K x 8

(4) 32K x 8

(1) 16K/32K x 8

256KB (B)

(4) 64K x 8

None

(1) 16K/32K x 8

CACHE JUMPER CONFIGURATION

Size

JS1

JS2

JS3

128KB

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

256KB (A)

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

256KB (B)

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

CPU TYPE CONFIGURATION

Type

JC4

JC5

JC6

80486SX

Pins 2 & 3 closed

Pins 4 & 5 closed

Open

SL80486SX

Pins 2 & 3 closed

Pins 5 & 6 closed

Open

80486DX

Pins 1 & 2, 3 & 4 closed

Pins 4 & 5 closed

Pins 3 & 4 closed

SL80486DX

Pins 1 & 2, 3 & 4 closed

Pins 5 & 6 closed

Pins 3 & 4 closed

CXM7

Pins 1 & 2, 3 & 4 closed

Pins 1 & 2, 4 & 5 closed

Pins 3 & 4 closed

AM486DX2-80 (3.3v)

Pins 1 & 2, 3 & 4 closed

Pins 2 & 3, 4 & 5 closed

Pins 3 & 4 closed

AM486DX2-80 (5v)

Pins 1 & 2, 3 & 4 closed

Pins 4 & 5 closed

Pins 3 & 4 closed

80486DX2

Pins 1 & 2, 3 & 4 closed

Pins 4 & 5 closed

Pins 3 & 4 closed

SL80486DX2

Pins 1 & 2, 3 & 4 closed

Pins 5 & 6 closed

Pins 3 & 4 closed

AM486DX4

Pins 1 & 2, 3 & 4 closed

Pins 4 & 5 closed

Pins 3 & 4 closed

80486DX4

Pins 1 & 2, 3 & 4 closed

Pins 5 & 6 closed

Pins 3 & 4 closed

P24D

Pins 1 & 2, 3 & 4 closed

Pins 5 & 6 closed

Pins 2 & 3 closed

P24T

Pins 1 & 2, 3 & 4 closed

Pins 5 & 6 closed

Pins 2 & 3 closed

CPU TYPE CONFIGURATION (CON'T)

Type

JC7

JC8

JC10

80486SX

Open

Pins 4 & 5 closed

Open

SL80486SX

Pins 5 & 6 closed

Pins 4 & 5 closed

Open

80486DX

Open

Pins 4 & 5 closed

Open

SL80486DX

Pins 5 & 6 closed

Pins 4 & 5 closed

Open

CXM7

Pins 2 & 3, 4 & 5 closed

Pins 4 & 5 closed

Open

AM486DX2-80 (3.3v)

Open

Pins 4 & 5 closed

Open

AM486DX2-80 (5v)

Open

Pins 4 & 5 closed

Open

80486DX2

Open

Pins 4 & 5 closed

Open

SL80486DX2

Pins 5 & 6 closed

Pins 4 & 5 closed

Open

AM486DX4

Open

Pins 4 & 5 closed

Open

80486DX4

Pins 5 & 6 closed

Pins 4 & 5 closed

Open

P24D

Pins 5 & 6 closed

Pins 5 & 6 closed

Pins 1 & 2, 3 & 4 closed

P24T

Pins 5 & 6 closed

Pins 4 & 5 closed

Open

CPU TYPE CONFIGURATION (CON'T)

Type

JC5/6/7/8

SL80486SX

JC5 pin 1/JC6 pin 1 & JC7 pin 1/JC8 pin 1

SL80486DX

JC5 pin 1/JC6 pin 1 & JC7 pin 1/JC8 pin 1

SL80486DX2

JC5 pin 1/JC6 pin 1 & JC7 pin 1/JC8 pin 1

80486DX4

JC5 pin 1/JC6 pin 1 & JC7 pin 1/JC8 pin 1

P24D

JC5 pin 1/JC6 pin 1 & JC7 pin 1/JC8 pin 1

P24T

JC5 pin 1/JC6 pin 1 & JC7 pin 1/JC8 pin 1

Note: See above figure for jumper placement.

CPU TYPE CONFIGURATION

Type

JK5

All CPU types

Closed

P24C only

Open

CPU TYPE CONFIGURATION

Type

JC1

All CPU types

Pins 1 & 2 closed

CX M7 only

Pins 2 & 3 closed

CPU SPEED CONFIGURATION

Speed

JK1

JK2

JK3

JK4

25MHz

1 & 2

2 & 3

2 & 3

1 & 6, 4 & 9, 5 & 10

33MHz

1 & 2

2 & 3

2 & 3

1 & 6, 2 & 7, 3 & 8, 4 & 9, 5 & 10

40MHz

2 & 3

4 & 5

2 & 3

2 & 7, 4 & 9

50iMHz

1 & 2

2 & 3

2 & 3

1 & 6, 4 & 9, 5 & 10

50iMHz (CX only)

2 & 3

4 & 5

2 & 3

4 & 9, 5 & 10

50MHz

2 & 3

1 & 2

1 & 2

1 & 6, 4 & 9

66iMHz

1 & 2

2 & 3

2 & 3

1 & 6, 2 & 7, 3 & 8, 4 & 9, 5 & 10

75iMHz

1 & 2

2 & 3

2 & 3

1 & 6, 4 & 9, 5 & 10

80iMHz

2 & 3

4 & 5

2 & 3

2 & 7, 4 & 9

100iMHz

1 & 2

2 & 3

2 & 3

1 & 6, 2 & 7, 3 & 8, 4 & 9, 5 & 10

Note: Pins designated should be in the closed position.

CPU VOLTAGE CONFIGURATION

Voltage

J50

With auto detect

Pins 1 & 7, 2 & 8, 3 & 9 closed

3.3v

Pins 1 & 7, 2 & 8, 3 & 9 closed

5v

Pins 4 & 10, 5 & 11, 6 & 12 closed