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JX30 VL-BUS

MICRONICS COMPUTERS, INC.

JX30 VL-BUS

Processor

80486SX/80486DX/ODP486SX/80486DX2/Pentium Overdrive

Processor Speed

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

Chip Set

Micronics

Max. Onboard DRAM

64MB

Cache

64/128/256KB

BIOS

Phoenix

Dimensions

330mm x 218mm

I/O Options

32-bit VESA local bus slots (2), floppy drive interface,

IDE interface, parallel port, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

IDE interface

CN1

Power LED & keylock

J34

Floppy drive interface

CN2

32-bit VESA Local bus slot

S1

External battery

J8

32-bit VESA Local bus slot

S2

External keyboard connector

J10

Hard drive LED

W11

Serial port (COM1)

J12

Reset switch

W12

Parallel port

J15

Turbo LED

W13

Serial port (COM2)

J16

Turbo switch

W14

Speaker

J33

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

Factory configured - do not alter

SW1/switch 2

On

Factory configured - do not alter

SW1/switch 3

Off

Factory configured - do not alter

SW1/switch 4

Off

Parallel port unidirectional (for printer)

W5

pins 1 & 2 closed

 

Parallel port bi-directional

W5

pins 2 & 3 closed

Monitor type select color

W6

Closed

 

Monitor type select monochrome

W6

Open

Factory configured - do not alter

W7

Open

CMOS memory normal operation

W8

pins 2 & 3 closed

 

CMOS memory clear

W8

pins 1 & 2 closed

Factory configured - do not alter

W20

pins 1 & 2 closed

 

DALLAS Real Time Clock memory clear

W31

Closed

 

Real Time Clock normal operation

W31

Open

Local bus Bus-Mastering peripherals enabled

W40

Open

 

Local bus Bus-Mastering peripherals disabled

W40

Closed

REAL TIME CLOCK CONFIGURATION

Real Time Clock

W1

DALLAS Real Time Clock

Closed

MOTOROLA 146818

Open

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

4MB

(1) 1M x 36

NONE

NONE

NONE

6MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

10MB

(1) 256K x 36

(1) 256K 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) 4M x 36

NONE

NONE

NONE

18MB

(1) 256K x 36

(1) 256K x 36

(1) 4M x 36

NONE

20MB

(1) 1M x 36

(1) 4M x 36

NONE

NONE

24MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

NONE

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

36MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

NONE

40MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

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

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

W64

W65

W66

W67

W68

64KB

pins 1 & 2

pins 1 & 2

pins 2 & 3

pins 2 & 3

pins 1 & 2

128KB

pins 2 & 3

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 2 & 3

256KB

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 2 & 3

Note:Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

W70

W71

80486SX

pins 1 & 2 closed

N/A

80486DX

pins 2 & 3 closed

pins 2 & 3 closed

ODP486SX

N/A

pins 1 & 2 closed

80486DX2

pins 2 & 3 closed

pins 2 & 3 closed

Pentium Overdrive

pins 2 & 3 closed

pins 2 & 3 closed

CPU SPEED CONFIGURATION

Speed

SW1/switch 1

25MHz

On

33MHz

Off

50i MHz

On

66i MHz

Off