M4LI (REV. 3A)

MICRONICS COMPUTERS, INC.

M4LI (REV. 3A)

Processor

AM486SX/80486SX/AM486SX2/80486SX2/SL AM486DX/CX486DX/ CX486DX2/80486DX/80486DX2/SL80486DX2/AM486DX4/80486DX4/Pentium Overdrive

Processor Speed

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

Chip Set

SIS

Max. Onboard DRAM

128MB

Cache

128/256KB

BIOS

Phoenix

Dimensions

241mm x 218mm

I/O Options

PS/2 mouse port, PS/2 mouse interface, parallel port, serial port (2), 32-bit PCI slots (4), floppy drive interface, IDE interfaces (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse port

CN1

IDE interface 2

J25

Turbo switch

J2

Speaker

J31

Turbo LED

J3

Floppy drive interface

J36

Power LED & keylock

J9

Serial port 1

J37

PS/2 mouse interface

J10

Serial port 2

J38

IDE interface 1

J20

Parallel port

J39

IDE interface LED

J21

32-bit PCI slots

PC1 - PC4

Reset switch

J23

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Factory configured - do not alter

J22

N/A

»

Factory configured - do not alter

W19

pins 2 & 3 closed

»

PCI clock speed select CPU clock speed

W20

pins 1 & 2 closed

PCI clock speed select ½ CPU clock speed

W20

pins 2 & 3 closed

»

PS/2 mouse type select PS/2 version

W33

Closed

PS/2 mouse type select AT version

W33

Open

»

Factory configured - do not alter

W38

pins 2 & 3 closed

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 (A)

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

256KB (B)

(4) 64K x 8

NONE

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

W23

W34

W35

W36

None

Open

Open

Open

Open

128KB

Open

1 & 2

1 & 2, 4 & 5

1 & 2

256KB (A)

Closed

2 & 3

2 & 3, 4 & 5

2 & 3

256KB (B)

Closed

1 & 2

1 & 2, 3 & 4

2 & 3

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

W8

AM486SX

12 & 13, 15 & 16, 37 & 38, 42 & 43

80486SX

3 & 4, 12 & 13, 15 & 16, 19 & 20, 21 & 22, 26 & 27, 37 & 38, 42 & 43

AM486SX2

12 & 13, 15 & 16, 37 & 38, 42 & 43

80486SX2

3 & 4, 12 & 13, 15 & 16, 19 & 20, 21 & 22, 26 & 27, 37 & 38, 42 & 43

SL AM486DX

1 & 2, 3 & 4, 8 & 9, 11 & 12, 13 & 14, 15 & 16, 19 & 20, 21 & 22,

26 & 27, 29 & 30, 33 & 34, 36 & 37, 40 & 41, 42 & 43

CX486DX

2 & 3, 6 & 7, 9 & 10, 11 & 12, 13 & 14, 15 & 16, 18 & 19, 21 & 22,

24 & 25, 37 & 38, 40 & 41

80486DX

3 & 4, 11 & 12, 13 & 14, 15 & 16, 19 & 20, 21 & 22, 26 & 27,

37 & 38, 40 & 41, 42 & 43

CX486DX2

2 & 3, 6 & 7, 9 & 10, 11 & 12, 13 & 14, 15 & 16, 18 & 19, 21 & 22,

24 & 25, 37 & 38, 40 & 41

80486DX2 (WB)

1 & 2, 3 & 4, 8 & 9, 11 & 12, 13 & 14, 15 & 16, 19 & 20, 21 & 22,

26 & 27, 29 & 30, 33 & 34, 36 & 37, 40 & 41, 42 & 43

80486DX2

3 & 4, 11 & 12, 13 & 14, 15 & 16, 19 & 20, 21 & 22, 26 & 27,

37 & 38, 40 & 41, 42 & 43

AM486DX4

3 & 4, 11 & 12, 13 & 14, 15 & 16, 19 & 20, 21 & 22, 26 & 27,

37 & 38, 40 & 41, 42 & 43

80486DX4

3 & 4, 11 & 12, 13 & 14, 15 & 16, 19 & 20, 21 & 22, 26 & 27,

37 & 38, 40 & 41, 42 & 43

P24T

3 & 4, 5 & 6, 8 & 9, 11 & 12, 13 & 14, 15 & 16, 19 & 20, 21 & 22,

23 & 24, 36 & 37, 39 & 40, 42 & 43

Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION

Speed

W15

W16

25MHz

Open

Open

33MHz

Closed

Closed

40MHz

Open

Closed

50iMHz

Open

Open

66iMHz

Closed

Closed

75iMHz

Open

Open

100iMHz

Closed

Closed

CPU VOLTAGE CONFIGURATION

Size

J4

3.3v

Open

4v

Open

5v

pins 3 & 5, 4 & 6, 7 & 9, 8 & 10 closed

Processor	AM486SX/80486SX/AM486SX2/80486SX2/SL AM486DX/CX486DX/ CX486DX2/80486DX/80486DX2/SL80486DX2/AM486DX4/80486DX4/Pentium Overdrive
Processor Speed	25/33/40(internal)/50(internal)/66(internal)/75(internal)/100(internal)MHz
Chip Set	SIS
Max. Onboard DRAM	128MB
Cache	128/256KB
BIOS	Phoenix
Dimensions	241mm x 218mm
I/O Options	PS/2 mouse port, PS/2 mouse interface, parallel port, serial port (2), 32-bit PCI slots (4), floppy drive interface, IDE interfaces (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
PS/2 mouse port	CN1	IDE interface 2	J25
Turbo switch	J2	Speaker	J31
Turbo LED	J3	Floppy drive interface	J36
Power LED & keylock	J9	Serial port 1	J37
PS/2 mouse interface	J10	Serial port 2	J38
IDE interface 1	J20	Parallel port	J39
IDE interface LED	J21	32-bit PCI slots	PC1 - PC4
Reset switch	J23

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Factory configured - do not alter	J22	N/A
»	Factory configured - do not alter	W19	pins 2 & 3 closed
»	PCI clock speed select CPU clock speed	W20	pins 1 & 2 closed
	PCI clock speed select ½ CPU clock speed	W20	pins 2 & 3 closed
»	PS/2 mouse type select PS/2 version	W33	Closed
	PS/2 mouse type select AT version	W33	Open
»	Factory configured - do not alter	W38	pins 2 & 3 closed

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 (A)	(4) 32K x 8	(4) 32K x 8	(1) 32K x 8
256KB (B)	(4) 64K x 8	NONE	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	W23	W34	W35	W36
None	Open	Open	Open	Open
128KB	Open	1 & 2	1 & 2, 4 & 5	1 & 2
256KB (A)	Closed	2 & 3	2 & 3, 4 & 5	2 & 3
256KB (B)	Closed	1 & 2	1 & 2, 3 & 4	2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type	W8
AM486SX	12 & 13, 15 & 16, 37 & 38, 42 & 43
80486SX	3 & 4, 12 & 13, 15 & 16, 19 & 20, 21 & 22, 26 & 27, 37 & 38, 42 & 43
AM486SX2	12 & 13, 15 & 16, 37 & 38, 42 & 43
80486SX2	3 & 4, 12 & 13, 15 & 16, 19 & 20, 21 & 22, 26 & 27, 37 & 38, 42 & 43
SL AM486DX	1 & 2, 3 & 4, 8 & 9, 11 & 12, 13 & 14, 15 & 16, 19 & 20, 21 & 22, 26 & 27, 29 & 30, 33 & 34, 36 & 37, 40 & 41, 42 & 43
CX486DX	2 & 3, 6 & 7, 9 & 10, 11 & 12, 13 & 14, 15 & 16, 18 & 19, 21 & 22, 24 & 25, 37 & 38, 40 & 41
80486DX	3 & 4, 11 & 12, 13 & 14, 15 & 16, 19 & 20, 21 & 22, 26 & 27, 37 & 38, 40 & 41, 42 & 43
CX486DX2	2 & 3, 6 & 7, 9 & 10, 11 & 12, 13 & 14, 15 & 16, 18 & 19, 21 & 22, 24 & 25, 37 & 38, 40 & 41
80486DX2 (WB)	1 & 2, 3 & 4, 8 & 9, 11 & 12, 13 & 14, 15 & 16, 19 & 20, 21 & 22, 26 & 27, 29 & 30, 33 & 34, 36 & 37, 40 & 41, 42 & 43
80486DX2	3 & 4, 11 & 12, 13 & 14, 15 & 16, 19 & 20, 21 & 22, 26 & 27, 37 & 38, 40 & 41, 42 & 43
AM486DX4	3 & 4, 11 & 12, 13 & 14, 15 & 16, 19 & 20, 21 & 22, 26 & 27, 37 & 38, 40 & 41, 42 & 43
80486DX4	3 & 4, 11 & 12, 13 & 14, 15 & 16, 19 & 20, 21 & 22, 26 & 27, 37 & 38, 40 & 41, 42 & 43
P24T	3 & 4, 5 & 6, 8 & 9, 11 & 12, 13 & 14, 15 & 16, 19 & 20, 21 & 22, 23 & 24, 36 & 37, 39 & 40, 42 & 43
Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION
Speed	W15	W16
25MHz	Open	Open
33MHz	Closed	Closed
40MHz	Open	Closed
50iMHz	Open	Open
66iMHz	Closed	Closed
75iMHz	Open	Open
100iMHz	Closed	Closed

CPU VOLTAGE CONFIGURATION
Size	J4
3.3v	Open
4v	Open
5v	pins 3 & 5, 4 & 6, 7 & 9, 8 & 10 closed