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





M4PE (VER. 2A)

MICRONICS COMPUTERS, INC.

M4PE (VER. 2A)

Processor

80486SX/SL80486SX/80486DX/SL80486DX/80486DX2/SL80486DX2/ 80486DX4/Pentium Overdrive

Processor Speed

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

Chip Set

Intel

Max. Onboard DRAM

128MB

Cache

128/256/512KB

BIOS

Phoenix

Dimensions

355mm x 305mm

I/O Options

PS/2 mouse port, parallel port, serial ports (2), 32-bit PCI slots (3), floppy drive interface, IDE interfaces (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse port

J2

External battery

W11

Speaker

J5

Power LED & keylock

W12

Parallel port

J8

Reset switch

W15

Floppy drive interface

J9

Turbo switch

W29

Serial port 2

J10

Turbo LED

W38

Serial port 1

J11

IDE interface LED 1

W39

IDE interface 1

J21

IDE interface LED 2

W46

IDE interface 2

J22

32-bit PCI slots

PC1 - PC3

Chassis fan power

J102

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

IRQ jumper header disabled

J101

Open

 

IRQ jumper header enabled

J101

Closed

Level 2 cache type select write back

W1

pins 2 & 3 closed

 

Level 2 cache type select write through

W1

pins 1 & 2 closed

Cache type select write through

W4

Open

 

Cache type select write back

W4

Closed

Factory configured - do not alter

W6

pins 2 & 3 closed

Factory configured - do not alter

W8

Closed

PS/2 mouse installed

W10

Closed

 

PS/2 mouse not installed

W10

Open

DPU generates parity

W17

pins 1 & 2 closed

 

CPU generates parity

W17

pins 2 & 3 closed

DPU forces parity error

W18

pins 1 & 2 closed

 

DPU does not force parity error

W18

pins 2 & 3 closed

Factory configured - do not alter

W19

Closed

Cache installed

W21

Open

 

Cache not installed

W21

Closed

Level 2 cache wait state 0 wait states

W25

Open

 

Level 2 cache wait state 1 wait state

W25

Closed

PCI IDE IRQ14 enabled

W35

Closed

 

PCI IDE IRQ14 disabled

W35

Open

PCI IDE INT A disabled

W37

Closed

 

PCI IDE INT A enabled

W37

Open

PCI IDE IRQ15 disabled

W38

Closed

 

PCI IDE IRQ15 enabled

W38

Open

ISA IDE IRQ select IRQ15

W42

pins 2 & 3 closed

 

ISA IDE IRQ select IRQ14

W42

pins 1 & 2 closed

Factory configured - do not alter

W50

Open

Parity check enabled

W60

Closed

 

Parity check disabled

W60

Open

Note: The location of W60 is unidentified.

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) 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) 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

512KB

NONE

(4) 128K x 8

(1) 32K x 8

Note: Bank 0 is factory installed and is not configurable. If 512KB is used, the onboard cache is disabled. The location of the TAG is unidentified.

CACHE JUMPER CONFIGURATION

Size

W5

W22

W23

W51

128KB

Open

Closed

Open

Open

256KB

Closed

Open

Closed

Open

512KB

Closed

Open

Open

Closed

CACHE TAG CONFIGURATION

Size

W24

W26

7-bit

Open

Closed

8-bit

Closed

Closed

9-bit

Closed

Open

CPU TYPE CONFIGURATION

Type

W2

W3

W33

80486SX

pins 2 & 3 closed

Closed

Open

80486DX

pins 1 & 2, 3 & 4 closed

Closed

Open

80486DX2

pins 1 & 2, 3 & 4 closed

Closed

Open

80486DX4

pins 1 & 2, 3 & 4 closed

Closed

Open

80486DX4 (2x)

pins 1 & 2, 3 & 4 closed

Closed

pins 2 & 3 closed

Pentium Overdrive

pins 1 & 2, 3 & 4 closed

Open

Open

CPU TYPE CONFIGURATION

Type

W34

W45

W52

W53

Non SL-enhanced

Open

Open

pins 1 & 2 closed

Open

SL-enhanced

Closed

Closed

pins 2 & 3 closed

Closed

CPU SPEED CONFIGURATION

Speed

W16

W20

25MHz

Open

Closed

33MHz

Closed

Open

50iMHz

Open

Closed

66iMHz

Closed

Open

75iMHz

Open

Closed

100iMHz

Closed

Open

DMA CONFIGURATION

DMA

W43

W44

PIO transfer

Open

Open

 

DMA 6

pins 1 & 2 closed

pins 1 & 2 closed

 

DMA 7

pins 2 & 3 closed

pins 2 & 3 closed