M4LI (REV. 3A) Motherboard Settings and Configuration

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

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M4LI (REV. 3A) Motherboard Settings and Configuration

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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