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





M4PE

MICRONICS COMPUTERS INC.

M4PE

Processor

80486SX/80486DX/80486DX2/80486DX4

Processor Speed

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

Chip Set

Intel

Max. Onboard DRAM

128MB

Cache

128/256 KB

BIOS

Phoenix

Dimensions

355mm x 304mm

I/O Options

Floppy drive interface, IDE interface, PCI slots (3), parallel port, PS/2 mouse port,

serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Primary IDE interface (PCI)

CN1

PCI slot 1

J18

Secondary IDE interface (ISA)

CN2

PCI slot 2

J19

Floppy drive interface

CN3

PCI slot 3

J20

PS/2 mouse port

J2

Fan power connector

J102

Speaker

J5

Power LED & keylock

W12

Parallel port

J8

Turbo switch

W29

Serial port 2

J10

IDE interface LED (PCI)

W39

Serial port 1

J11

IDE interface LED (ISA)

W46

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Factory configured do not alter

J101

Open

Secondary cache in write-back mode

W1

pins 2 & 3

 

Secondary cache in write-through mode

W1

pins 1 & 2

Internal cache in write-through mode

W4

Open

 

Internal cache in write-back mode

W4

Closed

BIOS in normal mode

W6

pins 2 & 3 closed

 

BIOS recovery mode

W6

pins 1 & 2 closed

Factory configured do not alter

W8

Closed

PS/2 mouse installed

W10

Closed

 

PS/2 mouse not installed

W10

Open

Monitor type select color

W14

Closed

 

Monitor type select monochrome

W14

Open

CPU generates parity

W17

pins 2 & 3 closed

 

DPU generates parity

W17

pins 1 & 2 closed

DPU does not force parity error

W18

pins 2 & 3 closed

 

DPU forces parity error

W18

pins 1 & 2 closed

Factory configured do not alter

W19

Closed

Secondary cache installed

W21

Open

 

Secondary cache not installed

W21

Closed

Secondary cache 0 wait state

W25

Open

 

Secondary cache 1 wait state

W25

Closed

PCI IDE uses ISA IRQ 14

W35

Closed

 

PCI IDE does not use ISA IRQ 14

W35

Open

PCI IDE uses PCI INTR_A

W37

Closed

 

PCI IDE does not use PCI INTR_A

W37

Open

PCI IDE does not use ISA IRQ15

W38

Open

 

PCI IDE uses ISA IRQ15

W38

Closed

USER CONFIGURABLE SETTINGS (CONTINUED)

Function

Jumper

Position

ISA IDE uses ISA IRQ 15

W42

pins 2 & 3

 

ISA IDE used ISA IRQ 14

W42

pins 1 & 2

ISA IDE uses PIO transfer

W43

Open

 

ISA IDE uses channel 7

W43

pins 2 & 3

 

ISA IDE uses DMA channel 6

W43

pins 1 & 2

ISA IDE uses PIO transfer

W44

Open

 

ISA IDE uses channel 7

W44

pins 2 & 3

 

ISA IDE uses DMA channel 6

W44

pins 1 & 2

3.45V for DX4 - 100 MHz

W50

Open

 

3.30v for DX4 - 75 MHz

W50

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

8MB

(1) 1M x 36

(1) 1M x 36

None

None

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 2M x 36

(1) 2M x 36

None

None

24MB

(1) 2M x 36

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

32MB

(1) 4M x 36

(1) 4M x 36

None

None

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

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

(1) 8M x 36

None

None

72MB

(1) 8M x 36

(1) 8M x 36

(1) 4M x 36

(1) 4M 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) 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 JUMPER CONFIGURATION

Size

W5

W22

W23

128KB

Open

Open

Open

256KB

Closed

Closed

Closed

TAG ADDRESS CONFIGURATION

Address

W24

W26

9-bit

Closed

Open

7-bit

Open

Closed

8-bit

Closed

Closed

Illegal

Open

Open

CPU TYPE CONFIGURATION

Type

W2

W3

W33

80486SX

pins 2 & 3 closed

Closed

Open

80486DX

Closed

Closed

Open

80486DX2

Closed

Closed

Open

80486DX4 (50i)

Closed

Closed

pins 2 & 3 closed

80486DX4 (66i)

Closed

Closed

pins 2 & 3 closed

80486DX4 (75i)

Closed

Closed

Open

80486DX4 (100i)

Closed

Closed

Open

80486 DX4 (future use)

Closed

Closed

pins 1 & 2 closed

Pentium Overdrive

Closed

Open

Open

CPU SPEED CONFIGURATION

Speed

W16

W20

25MHz

Open

Closed

33MHz

Closed

Open

50iMHz

Open

Closed

66iMHz

Closed

Open

75iMHz

Open

Closed

100iMHz

Closed

Open