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MS-4116 VER. 2.0

ACHME COMPUTER, INC.

MS-4116 VER. 2.0

Processor

80486SX/80487SX/80486DX/80486DX2

Processor Speed

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

Chip Set

Unidentified

Max. Onboard DRAM

128MB

Cache

64/128/256KB

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

32-bit external memory card, 32-bit VESA local bus slot

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

Auxiliary keyboard connector

JP1

Turbo switch

JP20 pins 15 - 17

External battery

JP5

Reset switch

JP20 pins 19 & 20

Power LED & keylock

JP20 pins 1 - 5

32-bit VESA local bus slot

SL1

Speaker

JP20 pins 7 - 10

32-bit external memory card

SL2

Turbo LED

JP20 pins 12 & 13

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select color

JP4

Closed

 

Monitor type select monochrome

JP4

Open

Battery type select internal

JP5

pins 2 & 3 closed

 

Battery type select external

JP5

Closed

Factory configured - do not alter

JP14

pins 2 & 3 closed

Factory configured - do not alter

JP15

pins 2 & 3 closed

Factory configured - do not alter

JP16

pins 2 & 3 closed

Factory configured - do not alter

JP21

N/A

Factory configured - do not alter

JP22

N/A

Factory configured - do not alter

JP23

N/A

Factory configured - do not alter

JP24

N/A

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

5MB

(4) 256K x 9

(4) 1M x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

17MB

(4) 256K x 9

(4) 4M x 9

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

64MB

(4) 16M x 9

NONE

Note: In order to use 128MB, an external memory card must be installed. It uses the same configuration as above.

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) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP6

JP7

JP8

JP9

JP10

JP11

JP12

64KB

1 & 2

1 & 2

2 & 3

Open

Open

Open

Open

128KB

1 & 2

2 & 3

2 & 3

Closed

Open

Closed

Open

256KB

2 & 3

2 & 3

2 & 3

Closed

Closed

Closed

Closed

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

JP13

JP17

JP18

80486SX

Open

pins 2 & 3 closed

Open

80487SX

Closed

pins 1 & 2 closed

pins 2 & 3 closed

80486DX

Closed

pins 1 & 2 closed

pins 1 & 2 closed

80486DX2

Closed

pins 1 & 2 closed

pins 1 & 2 closed

CPU SPEED CONFIGURATION

Speed

JP24

25MHz

pins 2 & 3 closed

33MHz

pins 2 & 3 closed

50iMHz

pins 2 & 3 closed

50MHz

pins 1 & 2 closed

66iMHz

pins 2 & 3 closed

BUS SPEED CONFIGURATION

CPU speed

JP19

<= 33MHz

pins 2 & 3 closed

> 33MHz

pins 1 & 2 closed