ACHME COMPUTER, INC.

MS-4135

Processor

AM486SX/80486SX/CX486M7/AM486DX/80486DX/AM486DX2/80486DX2/ 80486DX4/Pentium Overdrive

Processor Speed

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

Chip Set

Contaq

Max. Onboard DRAM

64MB

Cache

128/256KB

BIOS

AMI/Award

Dimensions

270mm x 220mm

I/O Options

32-bit PCI slots (4), green PC connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

JBA

Speaker

JM9 pins 7 - 10

Green PC connector (monitor)

JG1

Turbo LED

JM9 pins 12 & 13

Green PC connector

JG2

Turbo switch

JM9 pins 15 - 17

Green PC LED

JG3

Reset switch

JM9 pins 19 & 20

Power LED & keylock

JM9 pins 1 - 5

32-bit PCI slots

PC1 - PC4

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Battery type select internal

JBA

pins 2 & 3 closed

 

Battery type select external

JBA

Closed

 

CX486M7 3.3v not installed

JC8

Open

 

CX486M7 3.3v installed

JC8

Closed

»

Factory configured - do not alter

JK8

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) 256K x 36

(1) 256K x 36

NONE

NONE

2MB

(1) 512K x 36

NONE

NONE

NONE

3MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

NONE

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

4MB

(1) 1M x 36

NONE

NONE

NONE

4MB

(1) 512K x 36

NONE

(1) 512K x 36

NONE

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

7MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

8MB

(1) 2M x 36

NONE

NONE

NONE

9MB

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

NONE

10MB

(1) 2M x 36

NONE

(1) 512K x 36

NONE

10MB

(1) 512K x 36

NONE

(1) 2M x 36

NONE

10MB

(1) 2M x 36

NONE

(1) 512K x 36

NONE

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

13MB

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 1M 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

NONE

(1) 2M x 36

NONE

16MB

(1) 2M x 36

NONE

(1) 2M 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) 256K x 36

(1) 256K x 36

NONE

19MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

20MB

(1) 1M x 36

(1) 4M x 36

NONE

NONE

20MB

(1) 4M x 36

(1) 1M x 36

NONE

NONE

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

NONE

28MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

32MB

(1) 8M x 36

NONE

NONE

NONE

33MB

(1) 256K x 36

(1) 4M x 36

(1) 4M x 36

NONE

34MB

(1) 8M x 36

NONE

(1) 512K x 36

NONE

34MB

(1) 512K x 36

NONE

(1) 8M x 36

NONE

34MB

(1) 8M x 36

NONE

(1) 512K x 36

NONE

36MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

NONE

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

40MB

(1) 8M x 36

NONE

(1) 2M x 36

NONE

40MB

(1) 2M x 36

NONE

(1) 8M x 36

NONE

40MB

(1) 2M x 36

NONE

(1) 8M x 36

NONE

40MB

(1) 8M x 36

NONE

(1) 2M x 36

NONE

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

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) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

NONE

(1) 8M x 36

NONE

64MB

(1) 8M x 36

NONE

(1) 8M x 36

NONE

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

NONE

(1) 8K x 8

256KB (A)

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

256KB (B)

(4) 64K x 8

NONE

(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 (A)

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

256KB (B)

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

CPU TYPE CONFIGURATION

Type

JC5

JC7

JC25

80486SX

pins 2 & 3 closed

Open

Closed

AM486SX

pins 2 & 3 closed

Open

Closed

AM486DX

pins 1 & 2, 3 & 4 closed

pins 2 & 3 closed

Closed

80486DX

pins 1 & 2, 3 & 4 closed

pins 2 & 3 closed

Closed

AM486DX2

pins 1 & 2, 3 & 4 closed

pins 2 & 3 closed

Closed

80486DX2

pins 1 & 2, 3 & 4 closed

pins 2 & 3 closed

Closed

80486DX4

pins 1 & 2, 3 & 4 closed

pins 2 & 3 closed

Open

Pentium Overdrive

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

Closed

CPU SPEED CONFIGURATION

Speed

JC12

JK1

JK2

JK3

JK7

25MHz

Open

Open

Open

Closed

1 & 2

33MHz

Open

Closed

Closed

Open

1 & 2

40MHz

Closed

Open

Closed

Open

2 & 3

50iMHz

Open

Open

Open

Closed

1 & 2

66iMHz

Open

Closed

Closed

Open

1 & 2

75iMHz

Open

Open

Open

Closed

1 & 2

100iMHz

Open

Closed

Closed

Open

1 & 2

Note: Pins designated should be in the closed position.

PCI IRQ CONFIGURATION (SLOT 1)

Card type/slot #

INT/IRQ

JP1

JP2

NCR slot 2

IRQ11/INTA

pins 10 & 11 closed

pins 7 & 8 closed

Adaptec slot 2

IRQ11/INTA

pins 10 & 11 closed

pins 7 & 8 closed

Bus Logic SCSI slot 2

IRQ11/INTA

pins 10 & 11 closed

pins 7 & 8 closed

SCSI slot 1

IRQ9/INTB

pins 8 & 9, 10 & 11 closed

pins 2 & 3, 7 & 8 closed

SCSI slot 4

IRQ9/INTC

pins 5 & 6, 10 & 11 closed

pins 2 & 3, 7 & 8 closed

SCSI slot 1

IRQ9/INTA

pins 1 & 2, 11 & 12 closed

pins 1 & 2, 8 & 9 closed

Edge Trigger slot 1

IRQ14/INTD

pins 2 & 3 closed

pins 16 & 17 closed

Level Trigger slot 1

IRQ14/INTD

pins 2 & 3 closed

pins 17 & 18 closed