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MS-4136

ACHME COMPUTER, INC.

MS-4136

Processor

CX486S/SL80486SX/80486SX/AM486DX/CX486DX/SL80486DX/80486DX/ SL80486DX2/80486DX2/Pentium Overdrive

Processor Speed

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

Chip Set

SIS

Max. Onboard DRAM

128MB

Cache

128/256KB

BIOS

Phoenix

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, game port, green PC connector, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse port

CN1

Power LED & keylock

JFP1 pins 1 - 5

Serial port 1

CN2

Speaker

JFP1 pins 6 - 10

Serial port 2

CN3

Turbo LED

JFP1 pins 12 - 13

Parallel port

CN4

Turbo switch

JFP1 pins 15 - 17

VGA port

CN5

Reset switch

JFP1 pins 19 - 20

Floppy drive interface

CN6

IDE interface LED

JFP1 pins 21 & 22

IDE interface

CN7

Green PC connector (monitor)

JG1

VGA feature connector

CN8

Green PC LED

JG2

Game interface

CN9

Green PC connector

JG3

External battery

JB

Riser Card

SL1

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Serial port 1 COM select COM1 3F8

JCOM1

pins 1 & 2 closed

 

Serial port 1 COM select COM3 3E8

JCOM1

pins 2 & 3 closed

»

Serial port 1 COM select COM2 2F8

JCOM2

pins 1 & 2 closed

 

Serial port 1 COM select COM4 2E8

JCOM2

pins 2 & 3 closed

»

Floppy drive interface enabled

JFDD

pins 1 & 2 closed

 

Floppy drive interface disabled

JFDD

pins 2 & 3 closed

»

Game interface enabled

JGAME

pins 1 & 2 closed

 

Game interface disabled

JGAME

pins 2 & 3 closed

»

IDE interface enabled

JHDD

pins 1 & 2 closed

 

IDE interface disabled

JHDD

pins 2 & 3 closed

»

Parallel port LPT select LPT1 378

JPP1

pins 1 & 2 closed

 

Parallel port LPT select LPT2 278

JPP1

pins 2 & 3 closed

»

Parallel port IRQ select IRQ7

JPP2

pins 1 & 2 closed

 

Parallel port IRQ select IRQ5

JPP2

pins 2 & 3 closed

»

On board VGA enabled

JVGA

pins 1 & 2 closed

 

On board VGA disabled

JVGA

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

2MB

(1) 512K x 36

NONE

NONE

NONE

4MB

(1) 256K x 36

(1) 256K x 36

(1) 512K x 36

NONE

4MB

(1) 512K x 36

(1) 512K x 36

NONE

NONE

4MB

(1) 1M x 36

NONE

NONE

NONE

5MB

(1) 256K x 36

(1) 1M x 36

NONE

NONE

6MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

NONE

6MB

(1) 512K x 36

(1) 1M x 36

NONE

NONE

8MB

(1) 256K x 36

(1) 256K x 36

(1) 512K x 36

(1) 1M x 36

8MB

(1) 512K x 36

(1) 512K x 36

(1) 1M x 36

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

8MB

(1) 2M x 36

NONE

NONE

NONE

10MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

12MB

(1) 512K x 36

(1) 512K x 36

(1) 1M x 36

(1) 1M x 36

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

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) 4M x 36

NONE

NONE

NONE

17MB

(1) 256K x 36

(1) 4M 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

20MB

(1) 512K x 36

(1) 512K x 36

(1) 4M x 36

NONE

20MB

(1) 1M x 36

(1) 4M x 36

NONE

NONE

24MB

(1) 512K x 36

(1) 512K x 36

(1) 1M x 36

(1) 4M x 36

24MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

NONE

24MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

NONE

32MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

32MB

(1) 8M x 36

NONE

NONE

NONE

36MB

(1) 512K x 36

(1) 512K x 36

(1) 4M x 36

(1) 4M x 36

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) 1M x 36

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

40MB

(1) 1M x 36

(1) 1M x 36

(1) 8M x 36

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

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 16M x 36

NONE

NONE

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 8M x 36

NONE

64MB

(1) 8M x 36

(1) 8M x 36

NONE

NONE

65MB

(1) 256K x 36

(1) 16M x 36

NONE

NONE

68MB

(1) 1M x 36

(1) 16M x 36

NONE

NONE

68MB

(1) 1M x 36

(1) 8M x 36

(1) 8M x 36

NONE

72MB

(1) 1M x 36

(1) 1M x 36

(1) 16M x 36

NONE

72MB

(1) 1M x 36

(1) 1M x 36

(1) 8M x 36

(1) 8M x 36

80MB

(1) 4M x 36

(1) 16M x 36

NONE

NONE

80MB

(1) 4M x 36

(1) 8M x 36

(1) 8M x 36

NONE

96MB

(1) 4M x 36

(1) 4M x 36

(1) 16M x 36

NONE

96MB

(1) 4M x 36

(1) 4M x 36

(1) 8M x 36

(1) 8M x 36

96MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

NONE

128MB

(1) 16M x 36

(1) 16M x 36

NONE

NONE

128MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

NONE

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

256KB

(4) 64K x 8

NONE

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

256KB

(4) 32K x 8

(4) 32K x 8

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

CACHE JUMPER CONFIGURATION

Size

JS1

JS2

JS3

128KB

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

256KB

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

256KB

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

CPU TYPE CONFIGURATION

Type

JC1

80486SX

pins 2 & 3, 5 & 6, 7 & 8 closed

80486DX

pins 2 & 5, 4 & 7, 6 & 9 closed

80486DX2

pins 2 & 5, 4 & 7, 6 & 9 closed

Pentium Overdrive

pins 1 & 4, 2 & 5, 6 & 9 closed

CPU TYPE CONFIGURATION

Type

JC2

JC3

JC4

JC5

Cyrix

2 & 3, 5 & 6

2 & 3, 5 & 6

2 & 3, 5 & 6

2 & 3, 5 & 6

AMD

6 & 7

6 & 7

6 & 7

6 & 7

Intel S-series

1 & 2, 6 & 7

1 & 2, 6 & 7

1 & 2, 6 & 7

1 & 2, 6 & 7

Intel

6 & 7

6 & 7

6 & 7

6 & 7

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

JC6

JC7

Cyrix

pins 1 & 2 closed

pins 2 & 3 closed

AMD

pins 2 & 3 closed

pins 1 & 2 closed

Intel

pins 2 & 3 closed

pins 1 & 2 closed

CPU SPEED CONFIGURATION

Speed

JK1

JK2

JK3

JK4

25MHz

pins 2 & 3 closed

Closed

Closed

Closed

33MHz

pins 1 & 2 closed

Closed

Open

Closed

40MHz

pins 1 & 2 closed

Closed

Closed

Open

50iMHz

pins 2 & 3 closed

Closed

Closed

Closed

50MHz

pins 1 & 2 closed

Open

Closed

Closed

66iMHz

pins 1 & 2 closed

Closed

Open

Closed

CPU VOLTAGE CONFIGURATION

Voltage

JP24

3.3v

pins 7 & 8, 9 &10 closed

5v

pins 1 & 2, 3 & 4 closed

VRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

512KB

(1) 256K x 16

NONE

NONE

1MB

(1) 256K x 16

(1) 256K x 16

NONE

2MB

(1) 256K x 16

(1) 256K x 16

(2) 256K x 16