DX-6900 VER. 1.75 Motherboard Settings and Configuration

AMPTRON INTERNATIONAL, INC.

DX-6900 VER. 1.75

Processor
AM486SX/80486SX/CX486DX/AM486DX/IBM486DX/TI486DX/80486DX/ SL80486DX/CX486DX2/AM486DX2/IBM486DX2/TI486DX2/80486DX2/ SL80486DX2/CX486DX4/AM486DX4/IBM486DX4/80486DX4/AM5X86
Processor Speed
25/33/40/50(internal)/50/66(internal)/80(internal)/100(internal)/120(internal)/133(internal)MHz
Chip Set
Unidentified
Max. Onboard DRAM
64MB
Cache
64/128/256/512/1024KB
BIOS
AMI
Dimensions
254mm x 218mm
I/O Options
32-bit VESA local bus slots (3), green PC connector
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
External battery
JP1
Reset switch
JP20
Power LED & keylock
JP15
Turbo switch
JP22
Speaker
JP18
Green PC connector
JP23
Turbo LED
JP19
32-bit VESA local bus slots
SL1 - SL3

USER CONFIGURABLE SETTINGS
Function
Jumper
Position

Battery type select internal
JP1
Pins 2 & 3 closed

Battery type select external
JP1
Closed

CMOS memory clear
JP1
Pins 3 & 4 closed
»
Factory configured - do not alter
JP2
Pins 2 & 3 closed
»
Factory configured - do not alter
JP3
Open
»
Factory configured - do not alter
JP36
Closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
1MB
(4) 256K x 9
None
None
1MB
None
(1) 256K x 36
None
2MB
(4) 256K x 9
(1) 256K x 36
None
2MB
None
(1) 512K x 36
None
2MB
None
(1) 256K x 36
(1) 256K x 36
3MB
(4) 256K x 9
(1) 256K x 36
(1) 256K x 36
3MB
None
(1) 512K x 36
(1) 256K x 36
3MB
None
(1) 256K x 36
(1) 512K x 36
4MB
(4) 1M x 9
None
None
4MB
None
(1) 512K x 36
(1) 512K x 36
4MB
None
(1) 1M x 36
None
5MB
(4) 1M x 9
(1) 256K x 36
None
5MB
None
(1) 256K x 36
(1) 1M x 36
5MB
None
(1) 1M x 36
(1) 256K x 36
6MB
(4) 256K x 9
(1) 256K x 36
(1) 1M x 36
6MB
(4) 1M x 9
(1) 256K x 36
(1) 256K x 36
6MB
None
(1) 512K x 36
(1) 1M x 36
6MB
None
(1) 1M x 36
(1) 512K x 36
8MB
None
(1) 1M x 36
(1) 1M x 36
8MB
None
(1) 2M x 36
None
9MB
(4) 1M x 9
(1) 256K x 36
(1) 1M x 36
9MB
None
(1) 256K x 36
(1) 2M x 36
9MB
None
(1) 2M x 36
(1) 256K x 36
10MB
None
(1) 512K x 36
(1) 2M x 36
10MB
None
(1) 2M x 36
(1) 512K x 36
12MB
None
(1) 1M x 36
(1) 2M x 36
12MB
None
(1) 2M x 36
(1) 1M x 36
16MB
(4) 4M x 9
None
None
16MB
None
(1) 4M x 36
None
16MB
None
(1) 2M x 36
(1) 2M x 36
17MB
(1) 4M x 36
(1) 256K x 36
None
17MB
None
(1) 256K x 36
(1) 4M x 36
17MB
None
(1) 4M x 36
(1) 256K x 36
18MB
(4) 256K x 9
(1) 256K x 36
(1) 4M x 36

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
18MB
(4) 4M x 9
(1) 256K x 36
(1) 256K x 36
18MB
None
(1) 512K x 36
(1) 4M x 36
18MB
None
(1) 4M x 36
(1) 512K x 36
20MB
None
(1) 1M x 36
(1) 4M x 36
20MB
None
(1) 4M x 36
(1) 1M x 36
21MB
(4) 1M x 9
(1) 256K x 36
(1) 4M x 36
21MB
(4) 4M x 9
(1) 256K x 36
(1) 1M x 36
24MB
None
(1) 4M x 36
(1) 2M x 36
24MB
None
(1) 2M x 36
(1) 4M x 36
32MB
None
(1) 8M x 36
None
32MB
None
(1) 4M x 36
(1) 4M x 36
33MB
(4) 4M x 9
(1) 256K x 36
(1) 4M x 36
33MB
None
(1) 256K x 36
(1) 8M x 36
33MB
None
(1) 8M x 36
(1) 256K x 36
34MB
None
(1) 512K x 36
(1) 8M x 36
34MB
None
(1) 8M x 36
(1) 512K x 36
36MB
None
(1) 1M x 36
(1) 8M x 36
36MB
None
(1) 8M x 36
(1) 1M x 36
40MB
None
(1) 8M x 36
(1) 2M x 36
40MB
None
(1) 2M x 36
(1) 8M x 36
48MB
None
(1) 8M x 36
(1) 4M x 36
48MB
None
(1) 4M x 36
(1) 8M x 36
64MB
(4) 16M x 9
None
None
64MB
None
(1) 16M x 36
None
64MB
None
(1) 8M x 36
(1) 8M x 36

CACHE CONFIGURATION
Size
Bank 0
Bank 1
TAG
64KB
(4) 8K x 8
(4) 8K x 8
(1) 8K x 8
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
JP10
JP11
JP12
JP13
JP14
64KB
2 & 3
2 & 3
Open
Open
Open
Open
128KB
1 & 2
1 & 2
Open
Open
Open
Closed
256KB (A)
2 & 3
2 & 3
Open
Open
Closed
Closed
256KB (B)
1 & 2, 3 & 4
1 & 2
Open
Open
Closed
Closed
512KB (A)
2 & 3, 4 & 5
2 & 3
Open
Closed
Closed
Closed
512KB (B)
1 & 2, 3 & 4, 5 & 6
1 & 2
Open
Closed
Closed
Closed
1MB
2 & 3, 4 & 5, 6 & 7
2 & 3
Closed
Closed
Closed
Closed
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type
JP27
JP28
JP29
JP30
AM486SX
Open
2 & 3
Open
Open
80486SX
Open
2 & 3
Open
Open
CX486DX
2 & 3
1 & 2, 3 & 4, 5 & 6
1 & 2, 3 & 4, 5 & 6
2 & 3, 4 & 5
AM486DX
Open
2 & 3
Open
Open
IBM486DX
2 & 3
1 & 2, 3 & 4, 5 & 6
1 & 2, 3 & 4, 5 & 6
2 & 3, 4 & 5
TI486DX
2 & 3
1 & 2, 3 & 4, 5 & 6
1 & 2, 3 & 4, 5 & 6
2 & 3, 4 & 5
80486DX
Open
2 & 3
Open
Open
SL80486DX
1 & 2, 3 & 4
1 & 2
1 & 2
5 & 6
CX486DX2
2 & 3
1 & 2, 3 & 4, 5 & 6
1 & 2, 3 & 4, 5 & 6
2 & 3, 4 & 5
CX486DX2-V80
2 & 3
1 & 2, 3 & 4, 5 & 6
1 & 2, 3 & 4, 5 & 6
2 & 3, 4 & 5
AM486DX2
Open
2 & 3
Open
Open
AM486DX2(3.3v)
Open
2 & 3
Open
Open
IBM486DX2
2 & 3
1 & 2, 3 & 4, 5 & 6
1 & 2, 3 & 4, 5 & 6
2 & 3, 4 & 5
TI486DX2
2 & 3
1 & 2, 3 & 4, 5 & 6
1 & 2, 3 & 4, 5 & 6
2 & 3, 4 & 5
80486DX2
Open
2 & 3
Open
Open
SL80486DX2
1 & 2, 3 & 4
1 & 2
1 & 2
5 & 6
CX486DX4-GP
2 & 3
1 & 2, 3 & 4, 5 & 6
1 & 2, 3 & 4, 5 & 6
2 & 3, 4 & 5
CX486DX4-GP4
1 & 2, 3 & 4
1 & 2, 4 & 5
1 & 2, 4 & 5
3 & 4, 5 & 6
AM486DX4 (3.3v)
Open
2 & 3
Open
Open
AM486DX4 (8B)
1 & 2, 3 & 4
1 & 2, 4 & 5
1 & 2, 4 & 5
3 & 4, 5 & 6
IBM486DX4-GC
2 & 3
1 & 2, 3 & 4, 5 & 6
1 & 2, 3 & 4, 5 & 6
2 & 3, 4 & 5
IBM486DX4-GIC
1 & 2, 3 & 4
1 & 2, 4 & 5
1 & 2, 4 & 5
3 & 4, 5 & 6
80486DX4
1 & 2, 3 & 4
1 & 2
1 & 2
5 & 6
AM5X86-133
1 & 2, 3 & 4
1 & 2, 4 & 5
1 & 2, 4 & 5
3 & 4, 5 & 6
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type
JP31
JP32
JP33
JP34
JP35
AM486SX
Open
Open
2 & 3
Closed
Closed
80486SX
Open
Open
2 & 3
Closed
Closed
CX486DX
Open
1 & 2
1 & 2, 3 & 4
Open
Closed
AM486DX
Open
1 & 2
1 & 2, 3 & 4
Closed
Closed
IBM486DX
Open
1 & 2
1 & 2, 3 & 4
Open
Closed
TI486DX
Open
1 & 2
1 & 2, 3 & 4
Open
Closed
80486DX
Open
1 & 2
1 & 2, 3 & 4
Closed
Closed
SL80486DX
Open
1 & 2
1 & 2, 3 & 4
Open
Closed
CX486DX2
Open
1 & 2
1 & 2, 3 & 4
Open
Closed
CX486DX2-V80
Open
1 & 2
1 & 2, 3 & 4
Open
Open
AM486DX2
Open
1 & 2
1 & 2, 3 & 4
Closed
Closed
AM486DX2(3.3v)
Open
1 & 2
1 & 2, 3 & 4
Closed
Closed
IBM486DX2
Open
1 & 2
1 & 2, 3 & 4
Open
Closed
TI486DX2
Open
1 & 2
1 & 2, 3 & 4
Open
Closed
80486DX2
Open
1 & 2
1 & 2, 3 & 4
Closed
Closed
SL80486DX2
Open
1 & 2
1 & 2, 3 & 4
Open
Closed
CX486DX4-GP
Open
1 & 2
1 & 2, 3 & 4
Open
Closed
CX486DX4-GP4
Open
1 & 2
1 & 2, 3 & 4
Open
Closed
AM486DX4 (3.3v)
Open
1 & 2
1 & 2, 3 & 4
Open
Closed
AM486DX4 (8B)
Open
1 & 2
1 & 2, 3 & 4
Open
Closed
IBM486DX4-GC
Open
1 & 2
1 & 2, 3 & 4
Open
Closed
IBM486DX4-GIC
Open
1 & 2
1 & 2, 3 & 4
Open
Closed
80486DX4
Open
1 & 2
1 & 2, 3 & 4
Open
Closed
AM5X86-133
2 & 3
1 & 2
1 & 2, 3 & 4
Open
Closed
Note: Pins designated should be in the closed position.

CPU VOLTAGE CONFIGURATION
Voltage
JP24
JP25
JP26
3.3v
Pins 1 & 2 closed
Pins 1 & 2 closed
Pins 1 & 2 closed
4v
Pins 1 & 2 closed
Pins 1 & 2 closed
Pins 1 & 2 closed
5v
Pins 2 & 3 closed
Pins 2 & 3 closed
Pins 2 & 3 closed

CPU SPEED CONFIGURATION
Speed
JP6
JP7
JP8
25MHz
Open
Open
Closed
33MHz
Closed
Closed
Closed
40MHz
Open
Closed
Closed
50iMHz
Open
Open
Closed
50MHz
Closed
Open
Open
66iMHz
Closed
Closed
Closed
80iMHz
Open
Closed
Closed
100iMHz
Closed
Closed
Closed
120iMHz
Open
Closed
Closed
133iMHz
Closed
Closed
Closed

VL BUS WAIT STATE CONFIGURATION
Wait states
JP17
0 wait states
Open
1 wait state
Closed
Note: The location of JP17 is unidentified.

VL BUS SPEED CONFIGURATION
CPU speed
JP16
<= 33MHz
Open
> 33MHz
Closed

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DX-6900 VER. 1.75 Motherboard Settings and Configuration

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Processor	AM486SX/80486SX/CX486DX/AM486DX/IBM486DX/TI486DX/80486DX/ SL80486DX/CX486DX2/AM486DX2/IBM486DX2/TI486DX2/80486DX2/ SL80486DX2/CX486DX4/AM486DX4/IBM486DX4/80486DX4/AM5X86
Processor Speed	25/33/40/50(internal)/50/66(internal)/80(internal)/100(internal)/120(internal)/133(internal)MHz
Chip Set	Unidentified
Max. Onboard DRAM	64MB
Cache	64/128/256/512/1024KB
BIOS	AMI
Dimensions	254mm x 218mm
I/O Options	32-bit VESA local bus slots (3), green PC connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	JP1	Reset switch	JP20
Power LED & keylock	JP15	Turbo switch	JP22
Speaker	JP18	Green PC connector	JP23
Turbo LED	JP19	32-bit VESA local bus slots	SL1 - SL3

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
	Battery type select internal	JP1	Pins 2 & 3 closed
	Battery type select external	JP1	Closed
	CMOS memory clear	JP1	Pins 3 & 4 closed
»	Factory configured - do not alter	JP2	Pins 2 & 3 closed
»	Factory configured - do not alter	JP3	Open
»	Factory configured - do not alter	JP36	Closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2
1MB	(4) 256K x 9	None	None
1MB	None	(1) 256K x 36	None
2MB	(4) 256K x 9	(1) 256K x 36	None
2MB	None	(1) 512K x 36	None
2MB	None	(1) 256K x 36	(1) 256K x 36
3MB	(4) 256K x 9	(1) 256K x 36	(1) 256K x 36
3MB	None	(1) 512K x 36	(1) 256K x 36
3MB	None	(1) 256K x 36	(1) 512K x 36
4MB	(4) 1M x 9	None	None
4MB	None	(1) 512K x 36	(1) 512K x 36
4MB	None	(1) 1M x 36	None
5MB	(4) 1M x 9	(1) 256K x 36	None
5MB	None	(1) 256K x 36	(1) 1M x 36
5MB	None	(1) 1M x 36	(1) 256K x 36
6MB	(4) 256K x 9	(1) 256K x 36	(1) 1M x 36
6MB	(4) 1M x 9	(1) 256K x 36	(1) 256K x 36
6MB	None	(1) 512K x 36	(1) 1M x 36
6MB	None	(1) 1M x 36	(1) 512K x 36
8MB	None	(1) 1M x 36	(1) 1M x 36
8MB	None	(1) 2M x 36	None
9MB	(4) 1M x 9	(1) 256K x 36	(1) 1M x 36
9MB	None	(1) 256K x 36	(1) 2M x 36
9MB	None	(1) 2M x 36	(1) 256K x 36
10MB	None	(1) 512K x 36	(1) 2M x 36
10MB	None	(1) 2M x 36	(1) 512K x 36
12MB	None	(1) 1M x 36	(1) 2M x 36
12MB	None	(1) 2M x 36	(1) 1M x 36
16MB	(4) 4M x 9	None	None
16MB	None	(1) 4M x 36	None
16MB	None	(1) 2M x 36	(1) 2M x 36
17MB	(1) 4M x 36	(1) 256K x 36	None
17MB	None	(1) 256K x 36	(1) 4M x 36
17MB	None	(1) 4M x 36	(1) 256K x 36
18MB	(4) 256K x 9	(1) 256K x 36	(1) 4M x 36

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2
18MB	(4) 4M x 9	(1) 256K x 36	(1) 256K x 36
18MB	None	(1) 512K x 36	(1) 4M x 36
18MB	None	(1) 4M x 36	(1) 512K x 36
20MB	None	(1) 1M x 36	(1) 4M x 36
20MB	None	(1) 4M x 36	(1) 1M x 36
21MB	(4) 1M x 9	(1) 256K x 36	(1) 4M x 36
21MB	(4) 4M x 9	(1) 256K x 36	(1) 1M x 36
24MB	None	(1) 4M x 36	(1) 2M x 36
24MB	None	(1) 2M x 36	(1) 4M x 36
32MB	None	(1) 8M x 36	None
32MB	None	(1) 4M x 36	(1) 4M x 36
33MB	(4) 4M x 9	(1) 256K x 36	(1) 4M x 36
33MB	None	(1) 256K x 36	(1) 8M x 36
33MB	None	(1) 8M x 36	(1) 256K x 36
34MB	None	(1) 512K x 36	(1) 8M x 36
34MB	None	(1) 8M x 36	(1) 512K x 36
36MB	None	(1) 1M x 36	(1) 8M x 36
36MB	None	(1) 8M x 36	(1) 1M x 36
40MB	None	(1) 8M x 36	(1) 2M x 36
40MB	None	(1) 2M x 36	(1) 8M x 36
48MB	None	(1) 8M x 36	(1) 4M x 36
48MB	None	(1) 4M x 36	(1) 8M x 36
64MB	(4) 16M x 9	None	None
64MB	None	(1) 16M x 36	None
64MB	None	(1) 8M x 36	(1) 8M x 36

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
64KB	(4) 8K x 8	(4) 8K x 8	(1) 8K x 8
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	JP10	JP11	JP12	JP13	JP14
64KB	2 & 3	2 & 3	Open	Open	Open	Open
128KB	1 & 2	1 & 2	Open	Open	Open	Closed
256KB (A)	2 & 3	2 & 3	Open	Open	Closed	Closed
256KB (B)	1 & 2, 3 & 4	1 & 2	Open	Open	Closed	Closed
512KB (A)	2 & 3, 4 & 5	2 & 3	Open	Closed	Closed	Closed
512KB (B)	1 & 2, 3 & 4, 5 & 6	1 & 2	Open	Closed	Closed	Closed
1MB	2 & 3, 4 & 5, 6 & 7	2 & 3	Closed	Closed	Closed	Closed
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type	JP27	JP28	JP29	JP30
AM486SX	Open	2 & 3	Open	Open
80486SX	Open	2 & 3	Open	Open
CX486DX	2 & 3	1 & 2, 3 & 4, 5 & 6	1 & 2, 3 & 4, 5 & 6	2 & 3, 4 & 5
AM486DX	Open	2 & 3	Open	Open
IBM486DX	2 & 3	1 & 2, 3 & 4, 5 & 6	1 & 2, 3 & 4, 5 & 6	2 & 3, 4 & 5
TI486DX	2 & 3	1 & 2, 3 & 4, 5 & 6	1 & 2, 3 & 4, 5 & 6	2 & 3, 4 & 5
80486DX	Open	2 & 3	Open	Open
SL80486DX	1 & 2, 3 & 4	1 & 2	1 & 2	5 & 6
CX486DX2	2 & 3	1 & 2, 3 & 4, 5 & 6	1 & 2, 3 & 4, 5 & 6	2 & 3, 4 & 5
CX486DX2-V80	2 & 3	1 & 2, 3 & 4, 5 & 6	1 & 2, 3 & 4, 5 & 6	2 & 3, 4 & 5
AM486DX2	Open	2 & 3	Open	Open
AM486DX2(3.3v)	Open	2 & 3	Open	Open
IBM486DX2	2 & 3	1 & 2, 3 & 4, 5 & 6	1 & 2, 3 & 4, 5 & 6	2 & 3, 4 & 5
TI486DX2	2 & 3	1 & 2, 3 & 4, 5 & 6	1 & 2, 3 & 4, 5 & 6	2 & 3, 4 & 5
80486DX2	Open	2 & 3	Open	Open
SL80486DX2	1 & 2, 3 & 4	1 & 2	1 & 2	5 & 6
CX486DX4-GP	2 & 3	1 & 2, 3 & 4, 5 & 6	1 & 2, 3 & 4, 5 & 6	2 & 3, 4 & 5
CX486DX4-GP4	1 & 2, 3 & 4	1 & 2, 4 & 5	1 & 2, 4 & 5	3 & 4, 5 & 6
AM486DX4 (3.3v)	Open	2 & 3	Open	Open
AM486DX4 (8B)	1 & 2, 3 & 4	1 & 2, 4 & 5	1 & 2, 4 & 5	3 & 4, 5 & 6
IBM486DX4-GC	2 & 3	1 & 2, 3 & 4, 5 & 6	1 & 2, 3 & 4, 5 & 6	2 & 3, 4 & 5
IBM486DX4-GIC	1 & 2, 3 & 4	1 & 2, 4 & 5	1 & 2, 4 & 5	3 & 4, 5 & 6
80486DX4	1 & 2, 3 & 4	1 & 2	1 & 2	5 & 6
AM5X86-133	1 & 2, 3 & 4	1 & 2, 4 & 5	1 & 2, 4 & 5	3 & 4, 5 & 6
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	JP31	JP32	JP33	JP34	JP35
AM486SX	Open	Open	2 & 3	Closed	Closed
80486SX	Open	Open	2 & 3	Closed	Closed
CX486DX	Open	1 & 2	1 & 2, 3 & 4	Open	Closed
AM486DX	Open	1 & 2	1 & 2, 3 & 4	Closed	Closed
IBM486DX	Open	1 & 2	1 & 2, 3 & 4	Open	Closed
TI486DX	Open	1 & 2	1 & 2, 3 & 4	Open	Closed
80486DX	Open	1 & 2	1 & 2, 3 & 4	Closed	Closed
SL80486DX	Open	1 & 2	1 & 2, 3 & 4	Open	Closed
CX486DX2	Open	1 & 2	1 & 2, 3 & 4	Open	Closed
CX486DX2-V80	Open	1 & 2	1 & 2, 3 & 4	Open	Open
AM486DX2	Open	1 & 2	1 & 2, 3 & 4	Closed	Closed
AM486DX2(3.3v)	Open	1 & 2	1 & 2, 3 & 4	Closed	Closed
IBM486DX2	Open	1 & 2	1 & 2, 3 & 4	Open	Closed
TI486DX2	Open	1 & 2	1 & 2, 3 & 4	Open	Closed
80486DX2	Open	1 & 2	1 & 2, 3 & 4	Closed	Closed
SL80486DX2	Open	1 & 2	1 & 2, 3 & 4	Open	Closed
CX486DX4-GP	Open	1 & 2	1 & 2, 3 & 4	Open	Closed
CX486DX4-GP4	Open	1 & 2	1 & 2, 3 & 4	Open	Closed
AM486DX4 (3.3v)	Open	1 & 2	1 & 2, 3 & 4	Open	Closed
AM486DX4 (8B)	Open	1 & 2	1 & 2, 3 & 4	Open	Closed
IBM486DX4-GC	Open	1 & 2	1 & 2, 3 & 4	Open	Closed
IBM486DX4-GIC	Open	1 & 2	1 & 2, 3 & 4	Open	Closed
80486DX4	Open	1 & 2	1 & 2, 3 & 4	Open	Closed
AM5X86-133	2 & 3	1 & 2	1 & 2, 3 & 4	Open	Closed
Note: Pins designated should be in the closed position.

CPU VOLTAGE CONFIGURATION
Voltage	JP24	JP25	JP26
3.3v	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
4v	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
5v	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed

CPU SPEED CONFIGURATION
Speed	JP6	JP7	JP8
25MHz	Open	Open	Closed
33MHz	Closed	Closed	Closed
40MHz	Open	Closed	Closed
50iMHz	Open	Open	Closed
50MHz	Closed	Open	Open
66iMHz	Closed	Closed	Closed
80iMHz	Open	Closed	Closed
100iMHz	Closed	Closed	Closed
120iMHz	Open	Closed	Closed
133iMHz	Closed	Closed	Closed

VL BUS WAIT STATE CONFIGURATION
Wait states	JP17
0 wait states	Open
1 wait state	Closed
Note: The location of JP17 is unidentified.

VL BUS SPEED CONFIGURATION
CPU speed	JP16
<= 33MHz	Open
> 33MHz	Closed