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LPM30 (REV. 3A)

MICRONICS COMPUTERS, INC.

LPM30 (REV. 3A)

Processor

80486SX/SL80486SX/CX486DX/AM486DX/80486DX/SL80486DX/CX486DX2/ AM486DX2/80486DX2/SL80486DX2/AM486DX4/80486DX4/ Pentium Overdrive

Processor Speed

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

Chip Set

Micronics

Max. Onboard DRAM

128MB

Cache

128/256KB

BIOS

Phoenix

Dimensions

330mm x 218mm

I/O Options

Riser card slot, floppy drive interface, game port, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, LAN connector, modem port, audio connector, microphone input, line level input, line level output, speaker port

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Modem connector

CN1

Turbo switch

J23

Parallel port

CN2

Reset switch

J24

LAN connector

CN3

IDE interface LED

J36

Floppy drive interface

CN4

PS/2 mouse port

S1

IDE interface (secondary)

CN5

Serial port 1

S2

IDE interface (primary)

CN6

Game port

S3

CONNECTIONS (CON’T)

Purpose

Location

Purpose

Location

Serial port 2

CN7

Microphone input

S4

Audio connector

CN8

Line level input

S5

VGA Feature connector

CN9

Line level output

S6

Power LED & keylock

J19

Speaker port

S7

Speaker connector

J20

VGA port

S8

Power module connector

J21

Riser card slot

SL1 & SL2

Turbo LED

J22

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Monitor type select color

W1

Closed

 

Monitor type select monochrome

W1

Open

»

Game port enabled

W2

Closed

 

Game port disabled

W2

Open

»

On-board sound address select 240h

W3

pins 1 & 2 closed

 

On-board sound address select 220h

W3

pins 2 & 3 closed

»

On-board sound enabled

W4

Open

 

On-board sound disabled

W4

Closed

»

IRQ select IRQ5

W5

pins 2 & 3 closed

 

IRQ select IRQ7

W5

pins 1 & 2 closed

»

On-board sound IRQ select IRQ5

W7

pins 1 & 2 closed

 

On-board sound IRQ select IRQ9

W7

pins 2 & 3 closed

»

On-board I/O enabled

W11

Open

 

On-board I/O disabled

W11

Closed

»

Factory configured - do not alter

W13

pins 1 & 2 closed

»

On-board VGA enabled

W14

Open

 

On-board VGA disabled

W14

Closed

»

RAMDAC enabled

W15

Open

 

RAMDAC disabled/feature enabled

W15

Closed

»

Factory configured - do not alter

W17

Open

»

Flash BIOS normal mode

W18

Open

 

Flash BIOS programing mode

W18

Closed

»

Factory configured - do not alter

W19

pins 1 & 2, 3 & 4 closed

»

Buzzer enabled

W20

Closed

 

Buzzer disabled

W20

Open

»

DRAM select standard 5v

W21

Open

 

DRAM select micron 12v

W21

Closed

»

CMOS memory normal operation

W25

pins 1 & 2 closed

 

CMOS memory clear

W25

pins 2 & 3 closed

»

IDE interface enabled

W28

pins 1 & 2 closed

 

IDE interface disabled

W28

pins 2 & 3 closed

»

Factory configured - do not alter

W29

pins 2 & 3 closed

Note: The location of W17 is unidentified.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(1) 1M x 36

NONE

NONE

NONE

8MB

(1) 2M 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

16MB

(1) 2M x 36

(1) 2M x 36

NONE

NONE

24MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

NONE

24MB

(1) 2M x 36

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 8M x 36

NONE

NONE

NONE

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

32MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

40MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 2M x 36

(1) 2M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

64MB

(1) 8M 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

72MB

(1) 8M x 36

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

80MB

(1) 8M x 36

(1) 8M x 36

(1) 2M x 36

(1) 2M x 36

96MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

NONE

96MB

(1) 8M x 36

(1) 8M x 36

(1) 4M x 36

(1) 4M x 36

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 x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

W39

W42

128KB

pins 1 & 2, 3 & 4 closed

Open

256KB

pins 2 & 3, 4 & 5 closed

Closed

CPU TYPE CONFIGURATION

Type

W22

W23

W30

W31

W32

80486SX

2 & 3

1 & 2

2 & 3

2 & 3

2 & 3

SL80486SX

2 & 3

1 & 2

1 & 2, 3 & 4

2 & 3

2 & 3

CX486DX

1 & 2

2 & 3

1 & 2, 3 & 4

1 & 2

2 & 3

AM486DX

2 & 3

1 & 2

1 & 2, 3 & 4

2 & 3

2 & 3

80486DX

2 & 3

1 & 2

1 & 2, 3 & 4

2 & 3

2 & 3

SL80486DX

2 & 3

1 & 2

1 & 2, 3 & 4

2 & 3

2 & 3

CX486DX2

1 & 2

2 & 3

1 & 2, 3 & 4

1 & 2

2 & 3

AM486DX2

2 & 3

1 & 2

1 & 2, 3 & 4

2 & 3

2 & 3

80486DX2

2 & 3

1 & 2

1 & 2, 3 & 4

2 & 3

2 & 3

80486DX2(WB)

1 & 2

1 & 2

1 & 2, 3 & 4

2 & 3

1 & 2

SL80486DX2

2 & 3

1 & 2

1 & 2, 3 & 4

2 & 3

2 & 3

AM486DXL4

2 & 3

1 & 2

1 & 2, 3 & 4

Open

2 & 3

80486DX4

2 & 3

1 & 2

1 & 2, 3 & 4

2 & 3

2 & 3

Pentium Overdrive

1 & 2

1 & 2

1 & 2, 3 & 4

2 & 3

1 & 2

Note: Pins designated should be in closed position.

CPU TYPE CONFIGURATION (CON’T)

Type

W33

W34

W35

W38

W40

80486SX

Open

Open

Open

3 & 4

4 & 5

SL80486SX

Open

Open

1 & 2

3 & 4

4 & 5

CX486DX

Open

1 & 2

Open

3 & 4

2 & 3

AM486DX

Open

Open

Open

1 & 2, 3 & 4

4 & 5

80486DX

Open

Open

Open

3 & 4

4 & 5

SL80486DX

Open

Open

1 & 2

3 & 4

4 & 5

CX486DX2

Open

1 & 2

Open

3 & 4

2 & 3

AM486DX2

Open

Open

Open

1 & 2, 3 & 4

4 & 5

80486DX2

Open

Open

Open

3 & 4

4 & 5

80486DX2(WB)

Closed

1 & 2

2 & 3

3 & 4

4 & 5

SL80486DX2

Open

Open

1 & 2

3 & 4

4 & 5

AM486DXL4

Open

2 & 3

Open

1 & 2, 3 & 4

4 & 5

80486DX4

Open

Open

Open

3 & 4

4 & 5

Pentium Overdrive

Open

Open

Open

2 & 3

1 & 2

Note: Pins designated should be in closed position.

CPU TYPE CONFIGURATION (CON’T)

Type

W41

W43

W44

W45

80486SX

3 & 4

1 & 2

Open

Open

SL80486SX

3 & 4

1 & 2

Open

Open

CX486DX

2 & 3

2 & 3

Open

Open

AM486DX

Open

1 & 2

Closed

1 & 2

80486DX

3 & 4

1 & 2

Open

Open

SL80486DX

3 & 4

1 & 2

Open

Open

CX486DX2

2 & 3

2 & 3

Open

Open

AM486DX2

Open

1 & 2

Closed

1 & 2

80486DX2

3 & 4

1 & 2

Open

Open

80486DX2(WB)

1 & 2, 3 & 4

1 & 2

Open

Open

SL80486DX2

3 & 4

1 & 2

Open

Open

AM486DXL4

Open

1 & 2

Closed

Open

80486DX4

3 & 4

1 & 2

Open

Open

Pentium Overdrive

3 & 4

1 & 2

Open

Open

Note: Pins designated should be in closed position.

CPU SPEED CONFIGURATION

Speed

W26

W27

25MHz

Open

Open

33MHz

Open

Closed

40MHz

Closed

Open

50iMHz

Open

Open

66iMHz

Open

Closed

75iMHz

Open

Open

100iMHz

Open

Closed

DMA CONFIGURATION

DMA

W6

W10

None

Open

Open

DMA1

pins 1 & 2 closed

pins 1 & 2 closed

DMA3

pins 2 & 3 closed

pins 2 & 3 closed

DRQ CONFIGURATION

DRQ

W8

W9

None

pins 2 & 3 closed

pins 2 & 3 closed

DRQ0

pins 1 & 2 closed

pins 2 & 3 closed

DRQ1

pins 2 & 3 closed

pins 1 & 2 closed

DRQ3

pins 1 & 2 closed

pins 1 & 2 closed

VRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(2) 256K x 16

NONE

2MB

(2) 256K x 16

(2) 256K x 16

Note: Bank 0 is factory installed and is not configurable.