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





NON-ZIF SOCKET SYSTEM BOARD

MICRONICS COMPUTERS, INC.

NON-ZIF SOCKET SYSTEM BOARD

Processor

80486SX/80486DX/80486DX2/Pentium Overdrive

Processor Speed

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

Chip Set

Unidentified

Max. Onboard DRAM

64MB

Cache

64/128/256KB (on external cache card)

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

External cache card, 32-bit VESA local bus slots (2), floppy drive interface, IDE interface (2), parallel port, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1

J11

IDE interface (secondary)

J30

Parallel port

J12

32-bit VESA Local bus slots

SL1 & SL2

Serial port 2

J14

External cache card slot

SL3

Floppy drive interface

J15

Reset switch

W15

IDE interface (primary)

J16

Turbo LED

W17

External battery

J24

Turbo switch

W18

Speaker

J28

IDE interface LED

W19

Power LED & keylock

J29

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

CPU type select 80486DX/DX2

W13

pins 1 & 2 closed

 

CPU type select 80486SX

W13

pins 2 & 3 closed

Parallel port mode select output (printer)

W16

pins 2 & 3 closed

 

Parallel port mode select input (scanner)

W16

pins 1 & 2 closed

Flash BIOS write protect enabled

W20

pins 2 & 3 closed

Flash BIOS write protect disabled

W20

pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(1) 1M x 36

NONE

NONE

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

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

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

28MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

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

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

DRAM SWITCH CONFIGURATION

Size

SW8/1

SW8/2

SW8/3

SW8/4

4MB

On

On

On

On

8MB

Off

On

On

On

12MB

On

Off

On

On

16MB

Off

Off

On

On

16MB

On

On

Off

On

20MB

On

On

Off

Off

24MB

On

Off

On

Off

28MB

Off

On

On

Off

32MB

Off

On

Off

On

36MB

On

Off

Off

Off

40MB

Off

Off

On

Off

48MB

On

Off

Off

On

52MB

Off

Off

Off

Off

64MB

Off

Off

Off

On

Note:This table corresponds exactly to the above DRAM configuration table.

CPU SPEED CONFIGURATION

Speed

SW8/5

SW8/6

SW8/7

SW8/8

25MHz

On

Off

On

Off

33MHz

Off

On

Off

Off

50iMHz

On

Off

On

Off

66iMHz

Off

On

Off

Off