R418 PCI-486 Motherboard Settings and Configuration

M TECHNOLOGY, INC.

R418 PCI-486

Processor
80486SX/CX486DX/80486DX/AM486DX2/80486DX2/80486DX4/P24D/ Pentium Overdrive
Processor Speed
25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz
Chip Set
Unidentified
Max. Onboard DRAM
256MB
Cache
128/256/512/1024KB
BIOS
Award
Dimensions
330mm x 218mm
I/O Options
Parallel port, serial ports (2), 32-bit PCI slots (3), green PC connector, floppy drive interface, IDE interfaces (2)
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Serial port 2
CN1
Turbo switch
J3
Serial port 1
CN2
Turbo LED
J4
Parallel port
CN3
Reset switch
J5
Floppy drive interface
CN4
Break switch
J6
IDE interface 2
CN5
IDE interface LED
J7
IDE interface 1
CN6
Green PC connector
J9
Power LED & keylock
J1
32-bit PCI slots
PC1 - PC3
Speaker
J2

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
Serial port 1 IRQ select IRQ4
JP27
pins 1 & 2, 3 & 4 closed

Serial port 2 IRQ select IRQ3
JP27
pins 1 & 2, 3 & 4 closed
»
Parallel port IRQ select IRQ7
JP28
pins 2 & 3 closed

Parallel port IRQ select IRQ5
JP28
pins 1 & 2 closed
»
CMOS memory normal operation
JP49
pins 1 & 2 closed

CMOS memory clear
JP49
pins 2 & 3 closed
»
Monitor type select monochrome
JP51
Open

Monitor type select color
JP51
Closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
1MB
(4) 256K x 9
NONE
NONE
NONE
1MB
NONE
NONE
(1) 256K x 36
NONE
2MB
(4) 256K x 9
(4) 256K x 9
NONE
NONE
2MB
NONE
NONE
(1) 256K x 36
(1) 256K x 36
2MB
NONE
NONE
(1) 512K x 36
NONE
3MB
NONE
NONE
(1) 256K x 36
(1) 512K x 36
3MB
NONE
NONE
(1) 512K x 36
(1) 256K x 36
4MB
(4) 1M x 9
NONE
NONE
NONE
4MB
NONE
NONE
(1) 512K x 36
(1) 512K x 36
4MB
NONE
NONE
(1) 1M x 36
NONE
5MB
(4) 256K x 9
(4) 1M x 9
NONE
NONE
5MB
(4) 1M x 9
(4) 256K x 9
NONE
NONE
5MB
(4) 256K x 9
NONE
(1) 1M x 36
NONE
5MB
NONE
NONE
(1) 256K x 36
(1) 1M x 36
5MB
NONE
NONE
(1) 1M x 36
(1) 256K x 36
6MB
(4) 1M x 9
NONE
(1) 256K x 36
(1) 256K x 36
6MB
NONE
NONE
(1) 512K x 36
(1) 1M x 36
6MB
NONE
NONE
(1) 1M x 36
(1) 512K x 36
7MB
(4) 256K x 9
(4) 256K x 9
(1) 1M x 36
(1) 256K x 36
8MB
(4) 1M x 9
(4) 1M x 9
NONE
NONE
8MB
(4) 1M x 9
(4) 256K x 9
(1) 256K x 36
(1) 512K x 36
8MB
NONE
NONE
(1) 1M x 36
(1) 1M x 36
8MB
NONE
NONE
(1) 2M x 36
NONE
9MB
NONE
NONE
(1) 256K x 36
(1) 2M x 36
9MB
NONE
NONE
(1) 2M x 36
(1) 256K x 36
10MB
NONE
NONE
(1) 512K x 36
(1) 2M x 36
10MB
NONE
NONE
(1) 2M x 36
(1) 512K x 36
11MB
(4) 256K x 9
(4) 1M x 9
(1) 1M x 36
(1) 512K x 36
12MB
NONE
NONE
(1) 1M x 36
(1) 2M x 36
12MB
NONE
NONE
(1) 2M x 36
(1) 1M x 36
13MB
(4) 1M x 9
(4) 1M x 9
(1) 256K x 36
(1) 1M x 36
16MB
(4) 4M x 9
NONE
NONE
NONE
16MB
NONE
NONE
(1) 2M x 36
(1) 2M x 36

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
16MB
NONE
NONE
(1) 4M x 36
NONE
17MB
(4) 256K x 9
(4) 4M x 9
NONE
NONE
17MB
(4) 4M x 9
(4) 256K x 9
NONE
NONE
17MB
NONE
NONE
(1) 256K x 36
(1) 4M x 36
17MB
NONE
NONE
(1) 4M x 36
(1) 256K x 36
18MB
NONE
NONE
(1) 512K x 36
(1) 4M x 36
18MB
NONE
NONE
(1) 4M x 36
(1) 512K x 36
20MB
(4) 1M x 9
(4) 4M x 9
NONE
NONE
20MB
(4) 4M x 9
(4) 1M x 9
NONE
NONE
20MB
NONE
NONE
(1) 1M x 36
(1) 4M x 36
20MB
NONE
NONE
(1) 4M x 36
(1) 1M x 36
22MB
(4) 4M x 9
(4) 1M x 9
(1) 512K x 36
NONE
24MB
NONE
NONE
(1) 2M x 36
(1) 4M x 36
24MB
NONE
NONE
(1) 4M x 36
(1) 2M x 36
25MB
(4) 256K x 9
(4) 4M x 9
(1) 1M x 36
(1) 1M x 36
25MB
(4) 256K x 9
NONE
(1) 4M x 36
(1) 2M x 36
26MB
(4) 4M x 9
NONE
(1) 2M x 36
(1) 512K x 36
28MB
(4) 1M x 9
(4) 4M x 9
(1) 2M x 36
NONE
29MB
(4) 1M x 9
(4) 4M x 9
(1) 256K x 36
(1) 2M x 36
29MB
(4) 4M x 9
(4) 256K x 9
(1) 2M x 36
(1) 1M x 36
32MB
(4) 4M x 9
(4) 4M x 9
NONE
NONE
32MB
NONE
NONE
(1) 4M x 36
(1) 4M x 36
32MB
NONE
NONE
(1) 8M x 36
NONE
33MB
NONE
NONE
(1) 256K x 36
(1) 8M x 36
33MB
NONE
NONE
(1) 8M x 36
(1) 256K x 36
34MB
(4) 256K x 9
(4) 256K x 9
(1) 4M x 36
(1) 4M x 36
34MB
NONE
NONE
(1) 512K x 36
(1) 8M x 36
34MB
NONE
NONE
(1) 8M x 36
(1) 512K x 36
35MB
(4) 4M x 9
(4) 4M x 9
(1) 512K x 36
(1) 256K x 36
36MB
(4) 4M x 9
(4) 1M x 9
(1) 2M x 36
(1) 2M x 36
36MB
NONE
NONE
(1) 1M x 36
(1) 8M x 36
36MB
NONE
NONE
(1) 8M x 36
(1) 1M x 36
37MB
(4) 1M x 9
NONE
(1) 8M x 36
(1) 256K x 36
39MB
(4) 1M x 9
(4) 256K x 9
(1) 8M x 36
(1) 512K x 36
40MB
NONE
NONE
(1) 2M x 36
(1) 8M x 36
40MB
NONE
NONE
(1) 8M x 36
(1) 2M x 36
41MB
(4) 1M x 9
(4) 256K x 9
(1) 1M x 36
(1) 8M x 36
44MB
(4) 1M x 9
(4) 1M x 9
(1) 8M x 36
(1) 1M x 36
48MB
NONE
NONE
(1) 4M x 36
(1) 8M x 36
48MB
NONE
NONE
(1) 8M x 36
(1) 4M x 36
49MB
(4) 4M x 9
NONE
(1) 256K x 36
(1) 8M x 36
53MB
(4) 256K x 9
(4) 1M x 9
(1) 4M x 36
(1) 8M x 36
56MB
(4) 4M x 9
(4) 4M x 9
(1) 2M x 36
(1) 4M x 36
60MB
(4) 1M x 9
(4) 4M x 9
(1) 8M x 36
(1) 2M x 36

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
64MB
(4) 16M x 9
NONE
NONE
NONE
64MB
NONE
NONE
(1) 8M x 36
(1) 8M x 36
64MB
NONE
NONE
(1) 16M x 36
NONE
65MB
(4) 256K x 9
(4) 16M x 9
NONE
NONE
65MB
(4) 16M x 9
(4) 256K x 9
NONE
NONE
65MB
NONE
NONE
(1) 256K x 36
(1) 16M x 36
65MB
NONE
NONE
(1) 16M x 36
(1) 256K x 36
66MB
(4) 256K x 9
(4) 16M x 9
(1) 256K x 36
NONE
66MB
NONE
NONE
(1) 512K x 36
(1) 16M x 36
66MB
NONE
NONE
(1) 16M x 36
(1) 512K x 36
68MB
(4) 1M x 9
(4) 16M x 9
NONE
NONE
68MB
(4) 16M x 9
(4) 1M x 9
NONE
NONE
68MB
NONE
NONE
(1) 1M x 36
(1) 16M x 36
68MB
NONE
NONE
(1) 16M x 36
(1) 1M x 36
70MB
(4) 16M x 9
NONE
(1) 512K x 36
(1) 1M x 36
72MB
NONE
NONE
(1) 2M x 36
(1) 16M x 36
72MB
NONE
NONE
(1) 16M x 36
(1) 2M x 36
75MB
(4) 16M x 9
(4) 256K x 9
(1) 512K x 36
(1) 2M x 36
76MB
(4) 1M x 9
(4) 1M x 9
(1) 1M x 36
(1) 16M x 36
77MB
(4) 1M x 9
(4) 16M x 9
(1) 2M x 36
(1) 256K x 36
80MB
(4) 4M x 9
(4) 16M x 9
NONE
NONE
80MB
(4) 16M x 9
(4) 4M x 9
NONE
NONE
80MB
(4) 4M x 9
NONE
(1) 8M x 36
(1) 8M x 36
80MB
NONE
NONE
(1) 4M x 36
(1) 16M x 36
80MB
NONE
NONE
(1) 16M x 36
(1) 4M x 36
81MB
(4) 16M x 9
(4) 256K x 9
(1) 4M x 36
NONE
82MB
(4) 4M x 9
(4) 256K x 9
(1) 256K x 36
(1) 16M x 36
84MB
(4) 4M x 9
(4) 16M x 9
(1) 512K x 36
(1) 512K x 36
85MB
(4) 1M x 9
(4) 16M x 9
(1) 256K x 36
(1) 4M x 36
85MB
(4) 16M x 9
(4) 1M x 9
(1) 4M x 36
(1) 256K x 36
86MB
(4) 16M x 9
(4) 1M x 9
(1) 512K x 36
(1) 4M x 36
96MB
NONE
NONE
(1) 8M x 36
(1) 16M x 36
96MB
NONE
NONE
(1) 16M x 36
(1) 8M x 36
97MB
(4) 256K x 9
(4) 16M x 9
(1) 8M x 36
NONE
97MB
(4) 4M x 9
(4) 4M x 9
(1) 16M x 36
(1) 256K x 36
98MB
(4) 16M x 9
(4) 4M x 9
(1) 4M x 36
(1) 512K x 36
113MB
(4) 4M x 9
(4) 256K x 9
(1) 8M x 36
(1) 16M x 36
114MB
(4) 16M x 9
(4) 4M x 9
(1) 512K x 36
(1) 8M x 36
120MB
(4) 4M x 9
(4) 16M x 9
(1) 2M x 36
(1) 8M x 36
128MB
(4) 16M x 9
(4) 16M x 9
NONE
NONE
128MB
NONE
NONE
(1) 16M x 36
(1) 16M x 36
132MB
(4) 16M x 9
NONE
(1) 16M x 36
(1) 1M x 36
136MB
(4) 16M x 9
NONE
(1) 2M x 36
(1) 16M x 36

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
137MB
(4) 16M x 9
(4) 256K x 9
(1) 16M x 36
(1) 2M x 36
148MB
(4) 16M x 9
(4) 16M x 9
(1) 4M x 36
(1) 1M x 36
148MB
(4) 16M x 9
(4) 1M x 9
(1) 16M x 36
(1) 4M x 36
176MB
(4) 16M x 9
(4) 4M x 9
(1) 16M x 36
(1) 8M x 36
194MB
(4) 16M x 9
(4) 16M x 9
(1) 512K x 36
(1) 16M x 36
256MB
(4) 16M x 9
(4) 16M x 9
(1) 16M x 36
(1) 16M 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
512KB (A)
(4) 64K x 8
(4) 64K x 8
(1) 32K x 8
512KB (B)
(4) 128K x 8
NONE
(1) 32K x 8
1MB
(4) 128K x 8
(4) 128K x 8
(1) 64K x 8

CACHE JUMPER CONFIGURATION
Size
JP5
JP6
JP7
JP8
JP9
JP10
128KB
1 & 2, 4 & 5
1 & 2
1 & 2
Open
1 & 2
1 & 2
256KB (A)
2 & 3, 4 & 5
2 & 3
2 & 3
Open
1 & 2
2 & 3
256KB (B)
1 & 2, 3 & 4
1 & 2
1 & 2
Open
1 & 2
2 & 3
512KB (A)
2 & 3, 4 & 5
2 & 3
2 & 3
Open
2 & 3
2 & 3
512KB (B)
1 & 2, 4 & 5
1 & 2
1 & 2
Open
2 & 3
2 & 3
1MB
2 & 3, 4 & 5
2 & 3
2 & 3
Open
2 & 3
2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type
JP12
JP13
JP14
JP15
JP16
80486SX
2 & 3
Open
2 & 3
Open
3 & 4
CX486DX
2 & 3
2 & 3
1 & 2
2 & 3
2 & 3
80486DX
2 & 3
2 & 3
2 & 3
Open
3 & 4
AM486DX2
2 & 3
2 & 3
2 & 3
Open
3 & 4
80486DX2
2 & 3
2 & 3
2 & 3
Open
3 & 4
80486DX4
2 & 3
2 & 3
2 & 3
Open
3 & 4
P24D
1 & 2
2 & 3
2 & 3
Open
1 & 2, 3 & 4
P24T
1 & 2
1 & 2
2 & 3
1 & 2
3 & 4
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type
JP17
JP18
JP19
JP20
80486SX
pins 3 & 4 closed
Open
Open
Open
CX486DX
pins 2 & 3 closed
Open
Open
Open
80486DX
pins 3 & 4 closed
Open
Open
Open
AM486DX2
pins 3 & 4 closed
2 & 3
Open
Open
80486DX2
pins 3 & 4 closed
Open
Open
Open
80486DX4
pins 3 & 4 closed
Open
Open
Open
P24D
pins 1 & 2 closed
pins 1 & 2 closed
Open
pins 1 & 2 closed
P24T
pins 1 & 2 closed
Open
Open
Open

CPU TYPE CONFIGURATION (CON’T)
Type
JP21
JP22
JP23
JP24
80486SX
Open
pins 2 & 3 closed
pins 4 & 5 closed
Open
CX486DX
Open
pins 1 & 2, 3 & 4 closed
pins 2 & 3 closed
Open
80486DX
Open
pins 1 & 2, 3 & 4 closed
pins 4 & 5 closed
Open
AM486DX2
Open
pins 1 & 2, 3 & 4 closed
pins 4 & 5 closed
Open
80486DX2
Open
pins 1 & 2, 3 & 4 closed
pins 4 & 5 closed
Open
80486DX4
Open
pins 1 & 2, 3 & 4 closed
pins 4 & 5 closed
Open
P24D
Open
pins 1 & 2, 3 & 4 closed
pins 4 & 5 closed
pins 2 & 3 closed
P24T
pins 1 & 2 closed
pins 1 & 2, 3 & 4 closed
pins 1 & 2 closed
Open

CPU SPEED CONFIGURATION
Speed
JP25
JP38
JP39
JP40
25MHz
pins 1 & 2 closed
Open
Open
Open
33MHz
pins 1 & 2 closed
Closed
Closed
Open
40MHz
pins 1 & 2 closed
Closed
Open
Open
50iMHz
pins 1 & 2 closed
Open
Open
Open
50MHz
pins 2 & 3 closed
Open
Closed
Open
66iMHz
pins 1 & 2 closed
Closed
Closed
Open
75iMHz
pins 1 & 2 closed
Open
Open
Open
80iMHz
pins 1 & 2 closed
Closed
Open
Open
100iMHz
pins 1 & 2 closed
Closed
Closed
Open

CPU VOLTAGE CONFIGURATION
Voltage
JP42
JP43
JP44
JP45
JP46
3.3v
Closed
Open
Open
Open
Open
3.45v
Open
Closed
Open
Open
Open
3.6v
Open
Open
Closed
Open
Open
3.75v
Open
Open
Open
Closed
Open
3.9v
Open
Open
Open
Open
Closed

BIOS CONFIGURATION
Type
JP52
JP53
EEPROM
pins 2 & 3 closed
pins 2 & 3 closed
12v flash
pins 1 & 2 closed
pins 1 & 2 closed

DMA CONFIGURATION
DMA
JP36
JP37
DMA 1
pins 2 & 3 closed
pins 2 & 3 closed
DMA 3
pins 1 & 2 closed
pins 1 & 2 closed

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Processor	80486SX/CX486DX/80486DX/AM486DX2/80486DX2/80486DX4/P24D/ Pentium Overdrive
Processor Speed	25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz
Chip Set	Unidentified
Max. Onboard DRAM	256MB
Cache	128/256/512/1024KB
BIOS	Award
Dimensions	330mm x 218mm
I/O Options	Parallel port, serial ports (2), 32-bit PCI slots (3), green PC connector, floppy drive interface, IDE interfaces (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 2	CN1	Turbo switch	J3
Serial port 1	CN2	Turbo LED	J4
Parallel port	CN3	Reset switch	J5
Floppy drive interface	CN4	Break switch	J6
IDE interface 2	CN5	IDE interface LED	J7
IDE interface 1	CN6	Green PC connector	J9
Power LED & keylock	J1	32-bit PCI slots	PC1 - PC3
Speaker	J2

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Serial port 1 IRQ select IRQ4	JP27	pins 1 & 2, 3 & 4 closed
	Serial port 2 IRQ select IRQ3	JP27	pins 1 & 2, 3 & 4 closed
»	Parallel port IRQ select IRQ7	JP28	pins 2 & 3 closed
	Parallel port IRQ select IRQ5	JP28	pins 1 & 2 closed
»	CMOS memory normal operation	JP49	pins 1 & 2 closed
	CMOS memory clear	JP49	pins 2 & 3 closed
»	Monitor type select monochrome	JP51	Open
	Monitor type select color	JP51	Closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(4) 256K x 9	NONE	NONE	NONE
1MB	NONE	NONE	(1) 256K x 36	NONE
2MB	(4) 256K x 9	(4) 256K x 9	NONE	NONE
2MB	NONE	NONE	(1) 256K x 36	(1) 256K x 36
2MB	NONE	NONE	(1) 512K x 36	NONE
3MB	NONE	NONE	(1) 256K x 36	(1) 512K x 36
3MB	NONE	NONE	(1) 512K x 36	(1) 256K x 36
4MB	(4) 1M x 9	NONE	NONE	NONE
4MB	NONE	NONE	(1) 512K x 36	(1) 512K x 36
4MB	NONE	NONE	(1) 1M x 36	NONE
5MB	(4) 256K x 9	(4) 1M x 9	NONE	NONE
5MB	(4) 1M x 9	(4) 256K x 9	NONE	NONE
5MB	(4) 256K x 9	NONE	(1) 1M x 36	NONE
5MB	NONE	NONE	(1) 256K x 36	(1) 1M x 36
5MB	NONE	NONE	(1) 1M x 36	(1) 256K x 36
6MB	(4) 1M x 9	NONE	(1) 256K x 36	(1) 256K x 36
6MB	NONE	NONE	(1) 512K x 36	(1) 1M x 36
6MB	NONE	NONE	(1) 1M x 36	(1) 512K x 36
7MB	(4) 256K x 9	(4) 256K x 9	(1) 1M x 36	(1) 256K x 36
8MB	(4) 1M x 9	(4) 1M x 9	NONE	NONE
8MB	(4) 1M x 9	(4) 256K x 9	(1) 256K x 36	(1) 512K x 36
8MB	NONE	NONE	(1) 1M x 36	(1) 1M x 36
8MB	NONE	NONE	(1) 2M x 36	NONE
9MB	NONE	NONE	(1) 256K x 36	(1) 2M x 36
9MB	NONE	NONE	(1) 2M x 36	(1) 256K x 36
10MB	NONE	NONE	(1) 512K x 36	(1) 2M x 36
10MB	NONE	NONE	(1) 2M x 36	(1) 512K x 36
11MB	(4) 256K x 9	(4) 1M x 9	(1) 1M x 36	(1) 512K x 36
12MB	NONE	NONE	(1) 1M x 36	(1) 2M x 36
12MB	NONE	NONE	(1) 2M x 36	(1) 1M x 36
13MB	(4) 1M x 9	(4) 1M x 9	(1) 256K x 36	(1) 1M x 36
16MB	(4) 4M x 9	NONE	NONE	NONE
16MB	NONE	NONE	(1) 2M x 36	(1) 2M x 36

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
16MB	NONE	NONE	(1) 4M x 36	NONE
17MB	(4) 256K x 9	(4) 4M x 9	NONE	NONE
17MB	(4) 4M x 9	(4) 256K x 9	NONE	NONE
17MB	NONE	NONE	(1) 256K x 36	(1) 4M x 36
17MB	NONE	NONE	(1) 4M x 36	(1) 256K x 36
18MB	NONE	NONE	(1) 512K x 36	(1) 4M x 36
18MB	NONE	NONE	(1) 4M x 36	(1) 512K x 36
20MB	(4) 1M x 9	(4) 4M x 9	NONE	NONE
20MB	(4) 4M x 9	(4) 1M x 9	NONE	NONE
20MB	NONE	NONE	(1) 1M x 36	(1) 4M x 36
20MB	NONE	NONE	(1) 4M x 36	(1) 1M x 36
22MB	(4) 4M x 9	(4) 1M x 9	(1) 512K x 36	NONE
24MB	NONE	NONE	(1) 2M x 36	(1) 4M x 36
24MB	NONE	NONE	(1) 4M x 36	(1) 2M x 36
25MB	(4) 256K x 9	(4) 4M x 9	(1) 1M x 36	(1) 1M x 36
25MB	(4) 256K x 9	NONE	(1) 4M x 36	(1) 2M x 36
26MB	(4) 4M x 9	NONE	(1) 2M x 36	(1) 512K x 36
28MB	(4) 1M x 9	(4) 4M x 9	(1) 2M x 36	NONE
29MB	(4) 1M x 9	(4) 4M x 9	(1) 256K x 36	(1) 2M x 36
29MB	(4) 4M x 9	(4) 256K x 9	(1) 2M x 36	(1) 1M x 36
32MB	(4) 4M x 9	(4) 4M x 9	NONE	NONE
32MB	NONE	NONE	(1) 4M x 36	(1) 4M x 36
32MB	NONE	NONE	(1) 8M x 36	NONE
33MB	NONE	NONE	(1) 256K x 36	(1) 8M x 36
33MB	NONE	NONE	(1) 8M x 36	(1) 256K x 36
34MB	(4) 256K x 9	(4) 256K x 9	(1) 4M x 36	(1) 4M x 36
34MB	NONE	NONE	(1) 512K x 36	(1) 8M x 36
34MB	NONE	NONE	(1) 8M x 36	(1) 512K x 36
35MB	(4) 4M x 9	(4) 4M x 9	(1) 512K x 36	(1) 256K x 36
36MB	(4) 4M x 9	(4) 1M x 9	(1) 2M x 36	(1) 2M x 36
36MB	NONE	NONE	(1) 1M x 36	(1) 8M x 36
36MB	NONE	NONE	(1) 8M x 36	(1) 1M x 36
37MB	(4) 1M x 9	NONE	(1) 8M x 36	(1) 256K x 36
39MB	(4) 1M x 9	(4) 256K x 9	(1) 8M x 36	(1) 512K x 36
40MB	NONE	NONE	(1) 2M x 36	(1) 8M x 36
40MB	NONE	NONE	(1) 8M x 36	(1) 2M x 36
41MB	(4) 1M x 9	(4) 256K x 9	(1) 1M x 36	(1) 8M x 36
44MB	(4) 1M x 9	(4) 1M x 9	(1) 8M x 36	(1) 1M x 36
48MB	NONE	NONE	(1) 4M x 36	(1) 8M x 36
48MB	NONE	NONE	(1) 8M x 36	(1) 4M x 36
49MB	(4) 4M x 9	NONE	(1) 256K x 36	(1) 8M x 36
53MB	(4) 256K x 9	(4) 1M x 9	(1) 4M x 36	(1) 8M x 36
56MB	(4) 4M x 9	(4) 4M x 9	(1) 2M x 36	(1) 4M x 36
60MB	(4) 1M x 9	(4) 4M x 9	(1) 8M x 36	(1) 2M 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
512KB (A)	(4) 64K x 8	(4) 64K x 8	(1) 32K x 8
512KB (B)	(4) 128K x 8	NONE	(1) 32K x 8
1MB	(4) 128K x 8	(4) 128K x 8	(1) 64K x 8

CACHE JUMPER CONFIGURATION
Size	JP5	JP6	JP7	JP8	JP9	JP10
128KB	1 & 2, 4 & 5	1 & 2	1 & 2	Open	1 & 2	1 & 2
256KB (A)	2 & 3, 4 & 5	2 & 3	2 & 3	Open	1 & 2	2 & 3
256KB (B)	1 & 2, 3 & 4	1 & 2	1 & 2	Open	1 & 2	2 & 3
512KB (A)	2 & 3, 4 & 5	2 & 3	2 & 3	Open	2 & 3	2 & 3
512KB (B)	1 & 2, 4 & 5	1 & 2	1 & 2	Open	2 & 3	2 & 3
1MB	2 & 3, 4 & 5	2 & 3	2 & 3	Open	2 & 3	2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type	JP12	JP13	JP14	JP15	JP16
80486SX	2 & 3	Open	2 & 3	Open	3 & 4
CX486DX	2 & 3	2 & 3	1 & 2	2 & 3	2 & 3
80486DX	2 & 3	2 & 3	2 & 3	Open	3 & 4
AM486DX2	2 & 3	2 & 3	2 & 3	Open	3 & 4
80486DX2	2 & 3	2 & 3	2 & 3	Open	3 & 4
80486DX4	2 & 3	2 & 3	2 & 3	Open	3 & 4
P24D	1 & 2	2 & 3	2 & 3	Open	1 & 2, 3 & 4
P24T	1 & 2	1 & 2	2 & 3	1 & 2	3 & 4
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	JP17	JP18	JP19	JP20
80486SX	pins 3 & 4 closed	Open	Open	Open
CX486DX	pins 2 & 3 closed	Open	Open	Open
80486DX	pins 3 & 4 closed	Open	Open	Open
AM486DX2	pins 3 & 4 closed	2 & 3	Open	Open
80486DX2	pins 3 & 4 closed	Open	Open	Open
80486DX4	pins 3 & 4 closed	Open	Open	Open
P24D	pins 1 & 2 closed	pins 1 & 2 closed	Open	pins 1 & 2 closed
P24T	pins 1 & 2 closed	Open	Open	Open

CPU TYPE CONFIGURATION (CON’T)
Type	JP21	JP22	JP23	JP24
80486SX	Open	pins 2 & 3 closed	pins 4 & 5 closed	Open
CX486DX	Open	pins 1 & 2, 3 & 4 closed	pins 2 & 3 closed	Open
80486DX	Open	pins 1 & 2, 3 & 4 closed	pins 4 & 5 closed	Open
AM486DX2	Open	pins 1 & 2, 3 & 4 closed	pins 4 & 5 closed	Open
80486DX2	Open	pins 1 & 2, 3 & 4 closed	pins 4 & 5 closed	Open
80486DX4	Open	pins 1 & 2, 3 & 4 closed	pins 4 & 5 closed	Open
P24D	Open	pins 1 & 2, 3 & 4 closed	pins 4 & 5 closed	pins 2 & 3 closed
P24T	pins 1 & 2 closed	pins 1 & 2, 3 & 4 closed	pins 1 & 2 closed	Open

CPU SPEED CONFIGURATION
Speed	JP25	JP38	JP39	JP40
25MHz	pins 1 & 2 closed	Open	Open	Open
33MHz	pins 1 & 2 closed	Closed	Closed	Open
40MHz	pins 1 & 2 closed	Closed	Open	Open
50iMHz	pins 1 & 2 closed	Open	Open	Open
50MHz	pins 2 & 3 closed	Open	Closed	Open
66iMHz	pins 1 & 2 closed	Closed	Closed	Open
75iMHz	pins 1 & 2 closed	Open	Open	Open
80iMHz	pins 1 & 2 closed	Closed	Open	Open
100iMHz	pins 1 & 2 closed	Closed	Closed	Open

CPU VOLTAGE CONFIGURATION
Voltage	JP42	JP43	JP44	JP45	JP46
3.3v	Closed	Open	Open	Open	Open
3.45v	Open	Closed	Open	Open	Open
3.6v	Open	Open	Closed	Open	Open
3.75v	Open	Open	Open	Closed	Open
3.9v	Open	Open	Open	Open	Closed

BIOS CONFIGURATION
Type	JP52	JP53
EEPROM	pins 2 & 3 closed	pins 2 & 3 closed
12v flash	pins 1 & 2 closed	pins 1 & 2 closed

DMA CONFIGURATION
DMA	JP36	JP37
DMA 1	pins 2 & 3 closed	pins 2 & 3 closed
DMA 3	pins 1 & 2 closed	pins 1 & 2 closed