AN4R2/AN4TR2 Motherboard Settings and Configuration

ABIT COMPUTER CORPORATION

AN4R2/AN4TR2

Processor
80486SX/CX486M7/80486DX/80486DX2/80486DX4
Processor Speed
20/25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz
Chip Set
Unidentified
Max. Onboard DRAM
128MB
Cache
128/256/512KB
BIOS
AMI/Award
Dimensions
330mm x 218mm
I/O Options
32-bit VESA local bus slots (3), green PC connector
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Power LED & keylock
JW1
External battery
JP25
Speaker
JW2
Green PC connector (monitor)
JP46 (pins 1, 3, 5)
Reset switch
JW3
Green PC connector (power)
JP46 (pins 7 & 8)
Turbo switch
JW4
32-bit VESA local bus slots
SL1 - SL3
Turbo LED
JW5

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
Factory configured - do not alter
JP3
Open
»
Factory configured - do not alter
JP4
pins 1 & 2 closed
»
Factory configured - do not alter
JP5
Open
»
Factory configured - do not alter
JP6
Open
»
Factory configured - do not alter
JP8
pins 1 & 2 closed
»
Factory configured - do not alter
JP13
Closed
»
Factory configured - do not alter
JP14
pins 1 & 2 closed
»
Factory configured - do not alter
JP15
Open
»
Factory configured - do not alter
JP16
Closed
»
Factory configured - do not alter
JP17
Open
»
CMOS memory normal operation
JP21
pins 1 & 2 closed

CMOS memory clear
JP21
pins 2 & 3 closed
»
Factory configured - do not alter
JP41
Open
»
Factory configured - do not alter
JP45
Open
»
Factory configured - do not alter
JP49
pins 1 & 2 closed

DRAM CONFIGURATION
Size
SIMM 1 - 4
SIMM 5 - 8
SIMM 9
SIMM 10
1MB
NONE
NONE
(1) 256K x 36
NONE
1MB
(4) 256K x 9
NONE
NONE
NONE
1MB
(4) 256K x 9
NONE
NONE
NONE
2MB
NONE
NONE
(1) 256K x 36
(1) 256K x 36
2MB
(4) 256K x 9
NONE
NONE
(1) 256K x 36
2MB
NONE
NONE
(1) 512K x 36
NONE
2MB
(4) 256K x 9
(4) 256K x 9
NONE
NONE
4MB
NONE
NONE
(1) 1M x 36
NONE
4MB
(4) 1M x 9
NONE
NONE
NONE
4MB
NONE
NONE
(1) 512K x 36
(1) 512K x 36
4MB
(4) 256K x 9
NONE
(1) 512K x 36
(1) 256K x 36
4MB
(4) 256K x 9
(4) 256K x 9
(1) 512K x 36
NONE
5MB
NONE
NONE
(1) 256K x 36
(1) 1M x 36
5MB
(4) 256K x 9
NONE
NONE
(1) 1M x 36
6MB
(4) 1M x 9
NONE
(1) 256K x 36
(1) 256K x 36
6MB
(4) 256K x 9
NONE
(1) 1M x 36
(1) 256K x 36
6MB
NONE
NONE
(1) 512K x 36
(1) 1M x 36
6MB
(4) 256K x 9
(4) 256K x 9
(1) 1M x 36
NONE
8MB
NONE
NONE
(1) 1M x 36
(1) 1M x 36
8MB
(4) 1M x 9
NONE
NONE
(1) 1M x 36
8MB
NONE
NONE
(1) 2M x 36
NONE
8MB
(4) 1M x 9
NONE
(1) 512K x 36
(1) 512K x 36
8MB
(4) 1M x 9
(4) 1M x 9
NONE
NONE
10MB
(4) 1M x 9
(4) 1M x 9
(1) 256K x 36
(1) 256K x 36
10MB
(4) 256K x 9
(4) 256K x 9
(1) 1M x 36
(1) 1M x 36
12MB
(4) 1M x 9
NONE
(1) 1M x 36
(1) 1M x 36

DRAM CONFIGURATION (CON’T)
Size
SIMM 1 - 4
SIMM 5 - 8
SIMM 9
SIMM 10
12MB
(4) 1M x 9
NONE
(1) 1M x 36
(1) 1M x 36
12MB
(4) 1M x 9
(4) 1M x 9
(1) 512K x 36
(1) 512K x 36
12MB
(4) 1M x 9
(4) 1M x 9
(1) 1M x 36
NONE
16MB
(4) 1M x 9
(4) 1M x 9
(1) 1M x 36
(1) 1M x 36
16MB
NONE
NONE
(1) 4M x 36
NONE
16MB
(4) 4M x 9
NONE
NONE
NONE
16MB
NONE
NONE
(1) 2M x 36
(1) 2M x 36
16MB
(4) 1M x 9
(4) 1M x 9
(1) 1M x 36
(1) 1M x 36
16MB
(4) 4M x 9
NONE
NONE
NONE
17MB
NONE
NONE
(1) 256K x 36
(1) 4M x 36
17MB
(4) 256K x 9
NONE
NONE
(1) 4M x 36
18MB
(4) 4M x 9
NONE
(1) 256K x 36
(1) 256K x 36
18MB
(4) 256K x 9
NONE
(1) 4M x 36
(1) 256K x 36
18MB
NONE
NONE
(1) 512K x 36
(1) 4M x 36
18MB
(4) 256K x 9
(4) 256K x 9
(1) 4M x 36
NONE
20MB
NONE
NONE
(1) 1M x 36
(1) 4M x 36
20MB
(4) 1M x 9
NONE
NONE
(1) 4M x 36
20MB
(4) 4M x 9
NONE
(1) 512K x 36
(1) 512K x 36
24MB
(4) 4M x 9
NONE
(1) 1M x 36
(1) 1M x 36
24MB
(4) 1M x 9
NONE
(1) 4M x 36
(1) 1M x 36
24MB
(4) 1M x 9
(4) 4M x 9
(1) 512K x 36
(1) 512K x 36
24MB
(4) 1M x 9
(4) 1M x 9
(1) 4M x 36
NONE
32MB
NONE
NONE
(1) 4M x 36
(1) 4M x 36
32MB
(4) 4M x 9
NONE
NONE
(1) 4M x 36
32MB
NONE
NONE
(1) 8M x 36
NONE
32MB
(4) 4M x 9
(4) 4M x 9
NONE
NONE
36MB
(4) 4M x 9
NONE
(1) 1M x 36
(1) 4M x 36
36MB
(4) 1M x 9
NONE
(1) 4M x 36
(1) 4M x 36
36MB
(4) 4M x 9
(4) 4M x 9
(1) 512K x 36
(1) 512K x 36
36MB
(4) 1M x 9
NONE
(1) 8M x 36
NONE
36MB
(4) 1M x 9
(4) 4M x 9
(1) 4M x 36
NONE
40MB
(4) 4M x 9
(4) 4M x 9
(1) 1M x 36
(1) 1M x 36
40MB
(4) 1M x 9
NONE
(1) 8M x 36
(1) 1M x 36
40MB
(4) 1M x 9
(4) 1M x 9
(1) 8M x 36
NONE
40MB
(4) 1M x 9
(4) 1M x 9
(1) 4M x 36
(1) 4M x 36
48MB
(4) 4M x 9
NONE
(1) 4M x 36
(1) 4M x 36
48MB
(4) 4M x 9
NONE
(1) 4M x 36
(1) 4M x 36
48MB
(4) 4M x 9
NONE
(1) 8M x 36
NONE
48MB
(4) 4M x 9
(4) 4M x 9
(1) 4M x 36
NONE
64MB
(4) 4M x 9
(4) 4M x 9
(1) 4M x 36
(1) 4M x 36
64MB
NONE
NONE
(1) 16M x 36
NONE
64MB
(4) 16M x 9
NONE
NONE
NONE
64MB
NONE
NONE
(1) 8M x 36
(1) 8M x 36
64MB
(4) 4M x 9
NONE
(1) 8M x 36
(1) 4M x 36

DRAM CONFIGURATION (CON’T)
Size
SIMM 1 - 4
SIMM 5 - 8
SIMM 9
SIMM 10
64MB
(4) 4M x 9
(4) 4M x 9
(1) 8M x 36
NONE
64MB
(4) 4M x 9
(4) 4M x 9
(1) 4M x 36
(1) 4M x 36
64MB
(4) 16M x 9
NONE
NONE
NONE
65MB
NONE
NONE
(1) 256K x 36
(1) 16M x 36
65MB
(4) 256K x 9
NONE
NONE
(1) 16M x 36
68MB
NONE
NONE
(1) 1M x 36
(1) 16M x 36
68MB
(4) 1M x 9
NONE
NONE
(1) 16M x 36
68MB
(4) 1M x 9
(4) 16M x 9
NONE
NONE
72MB
(4) 16M x 9
NONE
(1) 1M x 36
(1) 1M x 36
72MB
(4) 1M x 9
NONE
(1) 16M x 36
(1) 1M x 36
72MB
(4) 1M x 9
(4) 1M x 9
(1) 16M x 36
NONE
80MB
NONE
NONE
(1) 4M x 36
(1) 16M x 36
80MB
(4) 4M x 9
NONE
NONE
(1) 16M x 36
80MB
(4) 4M x 9
(4) 16M x 9
NONE
NONE
96MB
(4) 16M x 9
NONE
(1) 4M x 36
(1) 4M x 36
96MB
(4) 4M x 9
NONE
(1) 16M x 36
(1) 4M x 36
96MB
(4) 4M x 9
(4) 4M x 9
(1) 16M x 36
NONE
128MB
NONE
NONE
(1) 16M x 36
(1) 16M x 36
128MB
(4) 16M x 9
NONE
NONE
(1) 16M x 36
128MB
(4) 16M x 9
(4) 16M x 9
NONE
NONE

DRAM JUMPER CONFIGURATION
Bank 0
Bank 1
Bank 2
Bank 3
JP18
JP19
JP20
JP22
SIMM 1 - 4
SIMM 5 - 8
SIMM 9
SIMM 10
1 & 2
1 & 2
Open
1 & 2
SIMM 1 - 4
SIMM 5 - 8
SIMM 9
NONE
1 & 2
1 & 2
Open
1 & 2
SIMM 1 - 4
SIMM 9
NONE
NONE
1 & 2
Open
Open
1 & 2
SIMM 1 - 4
SIMM 10
SIMM 9
NONE
1 & 2
Open
Open
1 & 2
SIMM 9
SIMM 10
SIMM 1 - 4
SIMM 5 - 8
2 & 3
2 & 3
Open
2 & 3
SIMM 9
SIMM 10
NONE
NONE
Open
Open
Closed
2 & 3
SIMM 1 - 4
SIMM 10
SIMM 9
NONE
1 & 2
Open
Open
1 & 2
SIMM 9
SIMM 10
SIMM 1 - 4
SIMM 5 - 8
2 & 3
2 & 3
Open
2 & 3
Note: Pins designated should be in the closed position.

DRAM JUMPER CONFIGURATION (CON’T)
Bank 0
Bank 1
Bank 2
Bank 3
JP23
JP24
JP50
JP51
SIMM 1 - 4
SIMM 5 - 8
SIMM 9
SIMM 10
Open
1 & 2
Open
Open
SIMM 1 - 4
SIMM 5 - 8
SIMM 9
NONE
1 & 2
Open
Open
Open
SIMM 1 - 4
SIMM 9
NONE
NONE
2 & 3
Open
Open
Open
SIMM 1 - 4
SIMM 10
SIMM 9
NONE
1 & 2
2 & 3
Open
Open
SIMM 9
SIMM 10
SIMM 1 - 4
SIMM 5 - 8
Open
2 & 3
Closed
2 & 3
SIMM 9
SIMM 10
NONE
NONE
2 & 3
Open
Open
1 & 2
SIMM 1 - 4
SIMM 10
SIMM 9
NONE
1 & 2
2 & 3
Open
Open
SIMM 9
SIMM 10
SIMM 1 - 4
SIMM 5 - 8
Open
2 & 3
Open
Open
Note: Pins designated should be in the closed position.

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
(4) 128K x 8
NONE
(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size
JP1
JP2
JP42
JP44
128KB
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
256KB
pins 2 & 3 closed
pins 2 & 3 closed
pins 2 & 3 closed
pins 1 & 2 closed
512KB
pins 1 & 2 closed
pins 1 & 2 closed
pins 2 & 3 closed
pins 2 & 3 closed

CPU TYPE CONFIGURATION
Type
JP9
JP12
JP30
JP31
JP32
80486SX
2 & 3
2 & 3
2 & 3
Open
2 & 3
SL80486SX
2 & 3
2 & 3
2 & 3
Open
2 & 3
CX486M7
2 & 3
2 & 3
1 & 2
2 & 3
2 & 3
80486DX/DX2
2 & 3
2 & 3
1 & 2
2 & 3
2 & 3
SL80486DX/DX2
2 & 3
2 & 3
1 & 2
2 & 3
2 & 3
80486DX4
1 & 2
1 & 2
1 & 2
2 & 3
2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type
JP33
JP34
JP35
JP36
JP37
80486SX
Closed
Open
Open
Open
Open
SL80486SX
Open
4 & 5
3 & 4
2 & 3
Open
CX486M7
Closed
2 & 3
2 & 3
1 & 2, 3 & 4
Open
80486DX/DX2
Closed
4 & 5
3 & 4
2 & 3
Open
SL80486DX/DX2
Closed
4 & 5
3 & 4
2 & 3
Open
80486DX4
Closed
4 & 5
3 & 4
2 & 3
Open
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type
JP38
JP39
JP43
JP47
JP48
80486SX
1 & 2
Open
2 & 3
2 & 3
1 & 2
SL80486SX
Open
Open
2 & 3
2 & 3
1 & 2
CX486M7
2 & 3
2 & 3
1 & 2
1 & 2
2 & 3
80486DX/DX2
Open
Open
2 & 3
2 & 3
1 & 2
SL80486DX/DX2
Open
Open
2 & 3
2 & 3
1 & 2
80486DX4
Open
Open
2 & 3
2 & 3
1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION (AVASEM AV9107 CLOCK GENERATOR)
Speed
JP10
JP11
JP26
JP27
20MHz
Open
Open
Closed
Open
25MHz
Open
Open
Open
Closed
33MHz
Open
Open
Closed
Closed
40MHz
Open
Open
Open
Open
50iMHz
Open
Open
Open
Closed
50MHz
Open
Open
Closed
Open
66iMHz
Open
Open
Closed
Closed
75iMHz
Open
pins 1 & 2 closed
Open
Closed
80iMHz
Closed
Open
Closed
Closed
100iMHz
Open
pins 1 & 2 closed
Closed
Closed

CPU SPEED CONFIGURATION (AVASEM AV9107 CLOCK GENERATOR, CON’T)
Speed
JP28
JP29
JP40
20MHz
Closed
Closed
Open
25MHz
Closed
Closed
Open
33MHz
Closed
Open
Open
40MHz
Closed
Closed
Open
50iMHz
Closed
Closed
Open
50MHz
Closed
Open
Open
66iMHz
Closed
Open
Open
75iMHz
Open
Closed
pins 2 & 3 closed
80iMHz
Open
Open
pins 2 & 3 closed
100iMHz
Open
Open
pins 1 & 2 closed

CPU SPEED CONFIGURATION (MXIC MX8315 CLOCK GENERATOR)
Speed
JP10
JP11
JP26
JP27
20MHz
Open
Open
Open
Open
25MHz
Open
Open
Open
Closed
33MHz
Open
Open
Closed
Closed
40MHz
Open
Open
Closed
Closed
50iMHz
Open
Open
Open
Closed
50MHz
Open
Open
Closed
Open
66iMHz
Open
Open
Closed
Closed
75iMHz
Open
pins 1 & 2 closed
Open
Closed
80iMHz
Closed
Open
Closed
Closed
100iMHz
Open
pins 1 & 2 closed
Closed
Closed

CPU SPEED CONFIGURATION (MXIC MX8315 CLOCK GENERATOR, CON’T)
Speed
JP28
JP29
JP40
20MHz
Closed
Open
Open
25MHz
Closed
Open
Open
33MHz
Closed
Closed
Open
40MHz
Closed
Open
Open
50iMHz
Closed
Open
Open
50MHz
Closed
Open
Open
66iMHz
Closed
Closed
Open
75iMHz
Open
Closed
pins 2 & 3 closed
80iMHz
Open
Closed
pins 2 & 3 closed
100iMHz
Open
Closed
pins 1 & 2 closed

BUS SPEED CONFIGURATION
CPU speed
JP7
<= 33MHz
pins 1 & 2 closed
> 33MHz
pins 2 & 3 closed

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Processor	80486SX/CX486M7/80486DX/80486DX2/80486DX4
Processor Speed	20/25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz
Chip Set	Unidentified
Max. Onboard DRAM	128MB
Cache	128/256/512KB
BIOS	AMI/Award
Dimensions	330mm x 218mm
I/O Options	32-bit VESA local bus slots (3), green PC connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Power LED & keylock	JW1	External battery	JP25
Speaker	JW2	Green PC connector (monitor)	JP46 (pins 1, 3, 5)
Reset switch	JW3	Green PC connector (power)	JP46 (pins 7 & 8)
Turbo switch	JW4	32-bit VESA local bus slots	SL1 - SL3
Turbo LED	JW5

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Factory configured - do not alter	JP3	Open
»	Factory configured - do not alter	JP4	pins 1 & 2 closed
»	Factory configured - do not alter	JP5	Open
»	Factory configured - do not alter	JP6	Open
»	Factory configured - do not alter	JP8	pins 1 & 2 closed
»	Factory configured - do not alter	JP13	Closed
»	Factory configured - do not alter	JP14	pins 1 & 2 closed
»	Factory configured - do not alter	JP15	Open
»	Factory configured - do not alter	JP16	Closed
»	Factory configured - do not alter	JP17	Open
»	CMOS memory normal operation	JP21	pins 1 & 2 closed
	CMOS memory clear	JP21	pins 2 & 3 closed
»	Factory configured - do not alter	JP41	Open
»	Factory configured - do not alter	JP45	Open
»	Factory configured - do not alter	JP49	pins 1 & 2 closed

DRAM CONFIGURATION
Size	SIMM 1 - 4	SIMM 5 - 8	SIMM 9	SIMM 10
1MB	NONE	NONE	(1) 256K x 36	NONE
1MB	(4) 256K x 9	NONE	NONE	NONE
1MB	(4) 256K x 9	NONE	NONE	NONE
2MB	NONE	NONE	(1) 256K x 36	(1) 256K x 36
2MB	(4) 256K x 9	NONE	NONE	(1) 256K x 36
2MB	NONE	NONE	(1) 512K x 36	NONE
2MB	(4) 256K x 9	(4) 256K x 9	NONE	NONE
4MB	NONE	NONE	(1) 1M x 36	NONE
4MB	(4) 1M x 9	NONE	NONE	NONE
4MB	NONE	NONE	(1) 512K x 36	(1) 512K x 36
4MB	(4) 256K x 9	NONE	(1) 512K x 36	(1) 256K x 36
4MB	(4) 256K x 9	(4) 256K x 9	(1) 512K x 36	NONE
5MB	NONE	NONE	(1) 256K x 36	(1) 1M x 36
5MB	(4) 256K x 9	NONE	NONE	(1) 1M x 36
6MB	(4) 1M x 9	NONE	(1) 256K x 36	(1) 256K x 36
6MB	(4) 256K x 9	NONE	(1) 1M x 36	(1) 256K x 36
6MB	NONE	NONE	(1) 512K x 36	(1) 1M x 36
6MB	(4) 256K x 9	(4) 256K x 9	(1) 1M x 36	NONE
8MB	NONE	NONE	(1) 1M x 36	(1) 1M x 36
8MB	(4) 1M x 9	NONE	NONE	(1) 1M x 36
8MB	NONE	NONE	(1) 2M x 36	NONE
8MB	(4) 1M x 9	NONE	(1) 512K x 36	(1) 512K x 36
8MB	(4) 1M x 9	(4) 1M x 9	NONE	NONE
10MB	(4) 1M x 9	(4) 1M x 9	(1) 256K x 36	(1) 256K x 36
10MB	(4) 256K x 9	(4) 256K x 9	(1) 1M x 36	(1) 1M x 36
12MB	(4) 1M x 9	NONE	(1) 1M x 36	(1) 1M x 36

DRAM CONFIGURATION (CON’T)
Size	SIMM 1 - 4	SIMM 5 - 8	SIMM 9	SIMM 10
12MB	(4) 1M x 9	NONE	(1) 1M x 36	(1) 1M x 36
12MB	(4) 1M x 9	(4) 1M x 9	(1) 512K x 36	(1) 512K x 36
12MB	(4) 1M x 9	(4) 1M x 9	(1) 1M x 36	NONE
16MB	(4) 1M x 9	(4) 1M x 9	(1) 1M x 36	(1) 1M x 36
16MB	NONE	NONE	(1) 4M x 36	NONE
16MB	(4) 4M x 9	NONE	NONE	NONE
16MB	NONE	NONE	(1) 2M x 36	(1) 2M x 36
16MB	(4) 1M x 9	(4) 1M x 9	(1) 1M x 36	(1) 1M x 36
16MB	(4) 4M x 9	NONE	NONE	NONE
17MB	NONE	NONE	(1) 256K x 36	(1) 4M x 36
17MB	(4) 256K x 9	NONE	NONE	(1) 4M x 36
18MB	(4) 4M x 9	NONE	(1) 256K x 36	(1) 256K x 36
18MB	(4) 256K x 9	NONE	(1) 4M x 36	(1) 256K x 36
18MB	NONE	NONE	(1) 512K x 36	(1) 4M x 36
18MB	(4) 256K x 9	(4) 256K x 9	(1) 4M x 36	NONE
20MB	NONE	NONE	(1) 1M x 36	(1) 4M x 36
20MB	(4) 1M x 9	NONE	NONE	(1) 4M x 36
20MB	(4) 4M x 9	NONE	(1) 512K x 36	(1) 512K x 36
24MB	(4) 4M x 9	NONE	(1) 1M x 36	(1) 1M x 36
24MB	(4) 1M x 9	NONE	(1) 4M x 36	(1) 1M x 36
24MB	(4) 1M x 9	(4) 4M x 9	(1) 512K x 36	(1) 512K x 36
24MB	(4) 1M x 9	(4) 1M x 9	(1) 4M x 36	NONE
32MB	NONE	NONE	(1) 4M x 36	(1) 4M x 36
32MB	(4) 4M x 9	NONE	NONE	(1) 4M x 36
32MB	NONE	NONE	(1) 8M x 36	NONE
32MB	(4) 4M x 9	(4) 4M x 9	NONE	NONE
36MB	(4) 4M x 9	NONE	(1) 1M x 36	(1) 4M x 36
36MB	(4) 1M x 9	NONE	(1) 4M x 36	(1) 4M x 36
36MB	(4) 4M x 9	(4) 4M x 9	(1) 512K x 36	(1) 512K x 36
36MB	(4) 1M x 9	NONE	(1) 8M x 36	NONE
36MB	(4) 1M x 9	(4) 4M x 9	(1) 4M x 36	NONE
40MB	(4) 4M x 9	(4) 4M x 9	(1) 1M x 36	(1) 1M x 36
40MB	(4) 1M x 9	NONE	(1) 8M x 36	(1) 1M x 36
40MB	(4) 1M x 9	(4) 1M x 9	(1) 8M x 36	NONE
40MB	(4) 1M x 9	(4) 1M x 9	(1) 4M x 36	(1) 4M x 36
48MB	(4) 4M x 9	NONE	(1) 4M x 36	(1) 4M x 36
48MB	(4) 4M x 9	NONE	(1) 4M x 36	(1) 4M x 36
48MB	(4) 4M x 9	NONE	(1) 8M x 36	NONE
48MB	(4) 4M x 9	(4) 4M x 9	(1) 4M x 36	NONE
64MB	(4) 4M x 9	(4) 4M x 9	(1) 4M x 36	(1) 4M x 36
64MB	NONE	NONE	(1) 16M x 36	NONE
64MB	(4) 16M x 9	NONE	NONE	NONE
64MB	NONE	NONE	(1) 8M x 36	(1) 8M x 36
64MB	(4) 4M x 9	NONE	(1) 8M x 36	(1) 4M x 36

DRAM JUMPER CONFIGURATION
Bank 0	Bank 1	Bank 2	Bank 3	JP18	JP19	JP20	JP22
SIMM 1 - 4	SIMM 5 - 8	SIMM 9	SIMM 10	1 & 2	1 & 2	Open	1 & 2
SIMM 1 - 4	SIMM 5 - 8	SIMM 9	NONE	1 & 2	1 & 2	Open	1 & 2
SIMM 1 - 4	SIMM 9	NONE	NONE	1 & 2	Open	Open	1 & 2
SIMM 1 - 4	SIMM 10	SIMM 9	NONE	1 & 2	Open	Open	1 & 2
SIMM 9	SIMM 10	SIMM 1 - 4	SIMM 5 - 8	2 & 3	2 & 3	Open	2 & 3
SIMM 9	SIMM 10	NONE	NONE	Open	Open	Closed	2 & 3
SIMM 1 - 4	SIMM 10	SIMM 9	NONE	1 & 2	Open	Open	1 & 2
SIMM 9	SIMM 10	SIMM 1 - 4	SIMM 5 - 8	2 & 3	2 & 3	Open	2 & 3
Note: Pins designated should be in the closed position.

DRAM JUMPER CONFIGURATION (CON’T)
Bank 0	Bank 1	Bank 2	Bank 3	JP23	JP24	JP50	JP51
SIMM 1 - 4	SIMM 5 - 8	SIMM 9	SIMM 10	Open	1 & 2	Open	Open
SIMM 1 - 4	SIMM 5 - 8	SIMM 9	NONE	1 & 2	Open	Open	Open
SIMM 1 - 4	SIMM 9	NONE	NONE	2 & 3	Open	Open	Open
SIMM 1 - 4	SIMM 10	SIMM 9	NONE	1 & 2	2 & 3	Open	Open
SIMM 9	SIMM 10	SIMM 1 - 4	SIMM 5 - 8	Open	2 & 3	Closed	2 & 3
SIMM 9	SIMM 10	NONE	NONE	2 & 3	Open	Open	1 & 2
SIMM 1 - 4	SIMM 10	SIMM 9	NONE	1 & 2	2 & 3	Open	Open
SIMM 9	SIMM 10	SIMM 1 - 4	SIMM 5 - 8	Open	2 & 3	Open	Open
Note: Pins designated should be in the closed position.

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	(4) 128K x 8	NONE	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP1	JP2	JP42	JP44
128KB	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed
256KB	pins 2 & 3 closed	pins 2 & 3 closed	pins 2 & 3 closed	pins 1 & 2 closed
512KB	pins 1 & 2 closed	pins 1 & 2 closed	pins 2 & 3 closed	pins 2 & 3 closed

CPU TYPE CONFIGURATION
Type	JP9	JP12	JP30	JP31	JP32
80486SX	2 & 3	2 & 3	2 & 3	Open	2 & 3
SL80486SX	2 & 3	2 & 3	2 & 3	Open	2 & 3
CX486M7	2 & 3	2 & 3	1 & 2	2 & 3	2 & 3
80486DX/DX2	2 & 3	2 & 3	1 & 2	2 & 3	2 & 3
SL80486DX/DX2	2 & 3	2 & 3	1 & 2	2 & 3	2 & 3
80486DX4	1 & 2	1 & 2	1 & 2	2 & 3	2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	JP33	JP34	JP35	JP36	JP37
80486SX	Closed	Open	Open	Open	Open
SL80486SX	Open	4 & 5	3 & 4	2 & 3	Open
CX486M7	Closed	2 & 3	2 & 3	1 & 2, 3 & 4	Open
80486DX/DX2	Closed	4 & 5	3 & 4	2 & 3	Open
SL80486DX/DX2	Closed	4 & 5	3 & 4	2 & 3	Open
80486DX4	Closed	4 & 5	3 & 4	2 & 3	Open
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	JP38	JP39	JP43	JP47	JP48
80486SX	1 & 2	Open	2 & 3	2 & 3	1 & 2
SL80486SX	Open	Open	2 & 3	2 & 3	1 & 2
CX486M7	2 & 3	2 & 3	1 & 2	1 & 2	2 & 3
80486DX/DX2	Open	Open	2 & 3	2 & 3	1 & 2
SL80486DX/DX2	Open	Open	2 & 3	2 & 3	1 & 2
80486DX4	Open	Open	2 & 3	2 & 3	1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION (AVASEM AV9107 CLOCK GENERATOR)
Speed	JP10	JP11	JP26	JP27
20MHz	Open	Open	Closed	Open
25MHz	Open	Open	Open	Closed
33MHz	Open	Open	Closed	Closed
40MHz	Open	Open	Open	Open
50iMHz	Open	Open	Open	Closed
50MHz	Open	Open	Closed	Open
66iMHz	Open	Open	Closed	Closed
75iMHz	Open	pins 1 & 2 closed	Open	Closed
80iMHz	Closed	Open	Closed	Closed
100iMHz	Open	pins 1 & 2 closed	Closed	Closed

CPU SPEED CONFIGURATION (AVASEM AV9107 CLOCK GENERATOR, CON’T)
Speed	JP28	JP29	JP40
20MHz	Closed	Closed	Open
25MHz	Closed	Closed	Open
33MHz	Closed	Open	Open
40MHz	Closed	Closed	Open
50iMHz	Closed	Closed	Open
50MHz	Closed	Open	Open
66iMHz	Closed	Open	Open
75iMHz	Open	Closed	pins 2 & 3 closed
80iMHz	Open	Open	pins 2 & 3 closed
100iMHz	Open	Open	pins 1 & 2 closed

BUS SPEED CONFIGURATION
CPU speed	JP7
<= 33MHz	pins 1 & 2 closed
> 33MHz	pins 2 & 3 closed