...because we can't all be on the bleeding edge...





MS-4137 (VLB 486 AL5)

ACHME COMPUTER, INC.

MS-4137 (VLB 486 AL5)

Processor

80486SX/CX486M7/AMD486DXL/80486DX/80486DX2/Pentium Overdrive

Processor Speed

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

Chip Set

ALI

Max. Onboard DRAM

64MB

Cache

128/256KB

BIOS

AMI

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

JB

Reset switch

JFP (pins 19-20)

Power LED & keylock

JFP (pins 1-5)

Green PC connector

JG1

Speaker

JFP (pins 7-10)

Green PC connector

JG2

Green PC connector

JFP (pins 9-10)

Green PC connector

JG3

Turbo LED

JFP (pins 12-13)

32-bit VESA local bus slots

SL1 - SL3

Turbo switch

JFP (pins 15-17)

   

Note: If speaker is installed, JFP (pins 9-10) are not used.

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Ľ

Battery type select internal

JB

pins 2 & 3 closed

 

Battery type select external

JB

Closed

Ľ

CPU type select Intel/AMD

JC1

pins 1 & 2 closed

 

CPU type select Cyrix

JC1

pins 2 & 3 closed

Ľ

Factory configured - do not alter

JC2

Open

Ľ

Factory configured - do not alter

JC3

Open

Ľ

Factory configured - do not alter

JC9

Open

Ľ

CPU type select P24C not installed

JK5

Closed

 

CPU type select P24C installed

JK5

Open

Ľ

Monitor type select monochrome

JP1

pins 1 & 2 closed

 

Monitor type select color

JP1

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

NONE

NONE

NONE

2MB

(1) 256K x 36

(1) 256K x 36

NONE

NONE

3MB

(1) 256K x 36

(1) 512K x 36

NONE

NONE

3MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

NONE

3MB

(1) 512K x 36

(1) 256K x 36

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

(1) 512K x 36

NONE

NONE

4MB

(1) 512K x 36

(1) 256K x 36

(1) 256K x 36

NONE

5MB

(1) 256K x 36

(1) 1M x 36

NONE

NONE

5MB

(1) 1M x 36

(1) 256K x 36

NONE

NONE

6MB

(1) 1M x 36

(1) 512K x 36

NONE

NONE

6MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

NONE

6MB

(1) 256K x 36

(1) 1M x 36

(1) 256K x 36

NONE

6MB

(1) 512K x 36

(1) 1M x 36

NONE

NONE

7MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

7MB

(1) 512K x 36

(1) 256K x 36

(1) 1M x 36

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

9MB

(1) 256K x 36

(1) 2M x 36

NONE

NONE

9MB

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

NONE

9MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

NONE

9MB

(1) 2M x 36

(1) 256K x 36

NONE

NONE

10MB

(1) 512K x 36

(1) 2M x 36

NONE

NONE

10MB

(1) 2M x 36

(1) 512K x 36

NONE

NONE

10MB

(1) 2M x 36

(1) 256K x 36

(1) 256K x 36

NONE

10MB

(1) 512K x 36

(1) 1M x 36

(1) 1M x 36

NONE

12MB

(1) 1M x 36

(1) 2M x 36

NONE

NONE

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

12MB

(1) 2M x 36

(1) 1M x 36

NONE

NONE

DRAM CONFIGURATION (CONíT)

Size

Bank 0

Bank 1

Bank 2

Bank 3

13MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

13MB

(1) 2M x 36

(1) 256K x 36

(1) 1M 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

(1) 2M x 36

NONE

NONE

16MB

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

NONE

17MB

(1) 256K x 36

(1) 4M x 36

NONE

NONE

17MB

(1) 4M x 36

(1) 256K x 36

NONE

NONE

18MB

(1) 4M x 36

(1) 512K x 36

NONE

NONE

18MB

(1) 256K x 36

(1) 256K x 36

(1) 4M x 36

NONE

18MB

(1) 512K x 36

(1) 4M x 36

NONE

NONE

19MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 4M x 36

19MB

(1) 512K x 36

(1) 256K x 36

(1) 4M x 36

NONE

20MB

(1) 1M x 36

(1) 4M x 36

NONE

NONE

20MB

(1) 4M x 36

(1) 1M x 36

NONE

NONE

21MB

(1) 256K x 36

(1) 1M x 36

(1) 4M x 36

NONE

21MB

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

NONE

22MB

(1) 512K x 36

(1) 1M x 36

(1) 4M x 36

NONE

22MB

(1) 512K x 36

(1) 1M x 36

(1) 4M x 36

NONE

24MB

(1) 4M x 36

(1) 2M x 36

NONE

NONE

24MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

NONE

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

NONE

24MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

NONE

24MB

(1) 2M x 36

(1) 4M x 36

NONE

NONE

24MB

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

NONE

25MB

(1) 2M x 36

(1) 256K x 36

(1) 4M x 36

NONE

28MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

28MB

(1) 2M x 36

(1) 1M x 36

(1) 4M x 36

NONE

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

33MB

(1) 256K x 36

(1) 8M x 36

NONE

NONE

33MB

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

NONE

33MB

(1) 8M x 36

(1) 256K x 36

NONE

NONE

34MB

(1) 512K x 36

(1) 8M x 36

NONE

NONE

34MB

(1) 8M x 36

(1) 512K x 36

NONE

NONE

34MB

(1) 8M x 36

(1) 256K x 36

(1) 256K x 36

NONE

36MB

(1) 1M x 36

(1) 8M x 36

NONE

NONE

36MB

(1) 4M x 36

(1) 1M x 36

(1) 4M x 36

NONE

36MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

NONE

36MB

(1) 8M x 36

(1) 1M x 36

NONE

NONE

37MB

(1) 8M x 36

(1) 256K x 36

(1) 1M x 36

NONE

40MB

(1) 2M x 36

(1) 8M x 36

NONE

NONE

40MB

(1) 8M x 36

(1) 2M x 36

NONE

NONE

DRAM CONFIGURATION (CONíT)

Size

Bank 0

Bank 1

Bank 2

Bank 3

40MB

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

NONE

48MB

(1) 4M x 36

(1) 8M x 36

NONE

NONE

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

48MB

(1) 8M x 36

(1) 4M x 36

NONE

NONE

49MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

49MB

(1) 8M x 36

(1) 256K x 36

(1) 4M x 36

NONE

52MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

52MB

(1) 8M x 36

(1) 1M x 36

(1) 4M x 36

NONE

64MB

(1) 4M 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

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

NONE

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

256KB

(4) 32K x 8

(4) 32K x 8

(1) 16K/32K x 8

256KB

(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

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

256KB

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

CPU TYPE CONFIGURATION

Type

JC4

JC5

JC6

80486SX

2 & 3

4 & 5

Open

SL80486SX

2 & 3

5 & 6

JC5 pin1 & JC6 pin1

80486DX/DX2

1 & 2, 3 & 4

4 & 5

3 & 4

CX486M7

1 & 2, 3 & 4

2 & 3, 5 & 6

3 & 4, 5 & 6

AMD486DXL

1 & 2, 3 & 4

4 & 5

3 & 4

SL80486DX/DX2/DX4

1 & 2, 3 & 4

5 & 6

3 & 4, JC5 pin1 & JC6 pin1

Pentium Overdrive

1 & 2, 3 & 4

5 & 6

2 & 3, JC5 pin1 & JC6 pin1

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CONíT)

Type

JC7

JC8

80486SX

Open

pins 4 & 5 closed

SL80486SX

5 & 6

JC7 pin1 & JC8 pin1

80486DX/DX2

Open

4 & 5

CX486M7

2 & 3, 4 & 5

4 & 5

AMD486DXL

JC6 pin1 & JC7 pin1, JC6 pin5 & JC7 pin5

4 & 5

SL80486DX/DX2/DX4

5 & 6

4 & 5, JC7 pin1 & JC8 pin1

Pentium Overdrive

5 & 6

4 & 5, JC7 pin1 & JC8 pin1

Note: Pins designated should be in the closed position.

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, 5 & 10

50iMHz

1 & 2

2 & 3

2 & 3

1 & 6, 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

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.

VOLTAGE CONFIGURATION

Voltage

J50

3.3v

pins 1 & 2, 3 & 4, 5 & 6 closed

5v

pins 7 & 8, 9 & 10 11 & 12closed

Note: The mainboard can only support 5v when a 3.3v regulator is not installed.