Processor	CX486M6/CX486S/80486SX/SL80486SX/CX486M7/CX486DX/AM486DX/ 80486DX/AM486DXL/SL80486DX/CX486DX2/AM486DX2/80486DX2/ AM486DX2L/SL80486DX2/CX486DX2-V/80486DX4/Pentium Overdrive/SL Pentium Overdrive
Processor Speed	20/25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz
Chip Set	SIS
Max. Onboard DRAM	128MB
Cache	64/128/256/512/1024KB
BIOS	Award
Dimensions	291mm x 223mm
I/O Options	32-bit VESA local bus slots (3)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	JP1	Speaker	JP40
Turbo switch	JP37	Turbo LED	JP41
Reset switch	JP38	32-bit VESA local bus slots	SL1 - SL3
Power LED & keylock	JP39

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select color	JP2	pins 2 & 3 closed
	Monitor type select monochrome/VGA	JP2	Open
»	CMOS memory normal operation	JP3	pins 1 & 2 closed
	CMOS memory clear	JP3	pins 2 & 3 closed
»	Factory configured - do not alter	JP8	pins 1 & 2 closed
»	Factory configured - do not alter	JP20	pins 2 & 3 closed
»	Factory configured - do not alter	JP28	pins 1 & 2 closed
»	BIOS voltage select 5V	JP29	pins 1 & 2 closed
	BIOS voltage select 12V	JP29	pins 2 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(1) 256K x 36	NONE	NONE	NONE
2MB	(1) 256K x 36	(1) 256K x 36	NONE	NONE
2MB	(1) 512K x 36	NONE	NONE	NONE
4MB	(1) 256K x 36	(1) 256K x 36	(1) 512K x 36	NONE
4MB	(1) 512K x 36	(1) 512K x 36	NONE	NONE
4MB	(1) 1M x 36	NONE	NONE	NONE
5MB	(1) 256K x 36	(1) 1M x 36	NONE	NONE
6MB	(1) 256K x 36	(1) 256K x 36	(1) 1M x 36	NONE
6MB	(1) 512K x 36	(1) 1M x 36	NONE	NONE
8MB	(1) 256K x 36	(1) 256K x 36	(1) 512K x 36	(1) 1M x 36
8MB	(1) 512K x 36	(1) 512K x 36	(1) 1M x 36	NONE
8MB	(1) 1M x 36	(1) 1M x 36	NONE	NONE
8MB	(1) 2M x 36	NONE	NONE	NONE
10MB	(1) 256K x 36	(1) 256K x 36	(1) 1M x 36	(1) 1M x 36
12MB	(1) 512K x 36	(1) 512K x 36	(1) 1M x 36	(1) 1M x 36
12MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	NONE
12MB	(1) 1M x 36	(1) 2M x 36	NONE	NONE
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
16MB	(1) 1M x 36	(1) 1M x 36	(1) 2M x 36	NONE
16MB	(1) 2M x 36	(1) 2M x 36	NONE	NONE
16MB	(1) 4M x 36	NONE	NONE	NONE
17MB	(1) 256K x 36	(1) 4M x 36	NONE	NONE
18MB	(1) 256K x 36	(1) 256K x 36	(1) 4M x 36	NONE
18MB	(1) 512K x 36	(1) 4M x 36	NONE	NONE
20MB	(1) 512K x 36	(1) 512K x 36	(1) 4M x 36	NONE
20MB	(1) 1M x 36	(1) 4M x 36	NONE	NONE
24MB	(1) 512K x 36	(1) 512K x 36	(1) 1M x 36	(1) 4M x 36
24MB	(1) 1M x 36	(1) 1M x 36	(1) 4M x 36	NONE
24MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	NONE
32MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
32MB	(1) 4M x 36	(1) 4M x 36	NONE	NONE
32MB	(1) 8M x 36	NONE	NONE	NONE

DRAM CONFIGURATION (CON’T)
36MB	(1) 512K x 36	(1) 512K x 36	(1) 4M x 36	(1) 4M x 36
36MB	(1) 1M x 36	(1) 4M x 36	(1) 4M x 36	NONE
36MB	(1) 1M x 36	(1) 8M x 36	NONE	NONE
40MB	(1) 1M x 36	(1) 1M x 36	(1) 4M x 36	(1) 4M x 36
40MB	(1) 2M x 36	(1) 8M x 36	NONE	NONE
48MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	NONE
48MB	(1) 4M 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
64MB	(1) 4M x 36	(1) 4M x 36	(1) 8M x 36	NONE
64MB	(1) 8M x 36	(1) 8M x 36	NONE	NONE
64MB	(1) 16M x 36	NONE	NONE	NONE
65MB	(1) 256K x 36	(1) 16M x 36	NONE	NONE
68MB	(1) 1M x 36	(1) 8M x 36	(1) 8M x 36	NONE
68MB	(1) 1M x 36	(1) 16M x 36	NONE	NONE
72MB	(1) 1M x 36	(1) 1M x 36	(1) 8M x 36	(1) 8M x 36
72MB	(1) 1M x 36	(1) 1M x 36	(1) 16M x 36	NONE
80MB	(1) 4M x 36	(1) 8M x 36	(1) 8M x 36	NONE
80MB	(1) 4M x 36	(1) 16M x 36	NONE	NONE
96MB	(1) 4M x 36	(1) 4M x 36	(1) 8M x 36	(1) 8M x 36
96MB	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36	NONE
96MB	(1) 4M x 36	(1) 4M x 36	(1) 16M x 36	NONE
128MB	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36
128MB	(1) 16M x 36	(1) 16M x 36	NONE	NONE

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	(4) 32K x 8	(4) 32K x 8	(1) 32K x 8
512KB	(4) 128K x 8	NONE	(1) 32K x 8
1MB	(4) 128K x 8	(4) 128K x 8	(1) 128K x 8
Note: The 32K x 8 chips have 28 pins, and the sockets have 32. When installing these chips, leave the topmost four pins empty.

CPU TYPE CONFIGURATION
Type	JP4	JP5	JP6	JP7	JP9	JP10	JP11
CX486M6	1 & 2	Open	Open	2 & 3	1 & 2	1 & 2	2 & 3
CX486S	1 & 2	Open	Open	2 & 3	1 & 2	1 & 2	2 & 3
80486SX	1 & 2	Open	Open	Open	1 & 2	Open	Open
SL80486SX	1 & 2	1 & 2	Open	4 & 5	1 & 2	2 & 3	1 & 2
CX486M7	1 & 2	Open	1 & 2	2 & 3	1 & 2	1 & 2	2 & 3
CX486DX	1 & 2	Open	1 & 2	2 & 3	1 & 2	1 & 2	2 & 3
AM486DX	1 & 2	Open	1 & 2	Open	1 & 2	Open	Open
80486DX	1 & 2	Open	Open	Open	1 & 2	Open	Open
AM486DXL	1 & 2	Open	1 & 2	Open	1 & 2	Open	Open
SL80486DX	1 & 2	1 & 2	1 & 2	4 & 5	1 & 2	2 & 3	1 & 2
CX486DX2	1 & 2	Open	1 & 2	2 & 3	1 & 2	1 & 2	2 & 3
AM486DX2	1 & 2	Open	1 & 2	Open	1 & 2	Open	Open
80486DX2	1 & 2	Open	Open	Open	1 & 2	Open	Open
AM486DX2L	1 & 2	Open	1 & 2	Open	1 & 2	Open	Open
SL80486DX2	1 & 2	1 & 2	1 & 2	4 & 5	1 & 2	2 & 3	1 & 2
CX486DX2-V	2 & 3	Open	1 & 2	2 & 3	1 & 2	1 & 2	2 & 3
80486DX4	2 & 3	1 & 2	1 & 2	4 & 5	2 & 3	2 & 3	1 & 2
P24T	1 & 2	Open	1 & 2	Open	1 & 2	Open	Open
P24D	1 & 2	1 & 2	1 & 2	4 & 5	1 & 2	2 & 3	1 & 2
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	JP12	JP13	JP14	JP15	JP16	JP21	JP22
CX486M6	2 & 3	2 & 3	2 & 3	Open	2 & 3	Open	1 & 2
CX486S	2 & 3	2 & 3	2 & 3	Open	2 & 3	Open	1 & 2
80486SX	2 & 3	Open	2 & 3	Open	Open	Open	2 & 3
SL80486SX	2 & 3	Open	2 & 3	Open	Open	Open	2 & 3
CX486M7	2 & 3	2 & 3	1 & 2	3 & 4	2 & 3	2 & 3	1 & 2
CX486DX	2 & 3	2 & 3	1 & 2	3 & 4	2 & 3	2 & 3	1 & 2
AM486DX	2 & 3	3 & 4	1 & 2	1 & 2	Open	Open	2 & 3
80486DX	2 & 3	Open	1 & 2	3 & 4	Open	Open	2 & 3
AM486DXL	2 & 3	3 & 4	1 & 2	1 & 2	Open	Open	2 & 3
SL80486DX	2 & 3	Open	1 & 2	3 & 4	Open	Open	2 & 3
CX486DX2	2 & 3	2 & 3	1 & 2	3 & 4	2 & 3	1 & 2	1 & 2
AM486DX2	2 & 3	3 & 4	1 & 2	1 & 2	Open	Open	2 & 3
80486DX2	2 & 3	Open	1 & 2	3 & 4	Open	Open	2 & 3
AM486DX2L	2 & 3	3 & 4	1 & 2	1 & 2	Open	Open	2 & 3
SL80486DX2	2 & 3	Open	1 & 2	3 & 4	Open	Open	2 & 3
CX486DX2-V	2 & 3	2 & 3	1 & 2	3 & 4	2 & 3	1 & 2	1 & 2
80486DX4	2 & 3	Open	1 & 2	3 & 4	Open	Open	2 & 3
P24T	1 & 2	Open	1 & 2	2 & 3	Open	Open	2 & 3
P24D	1 & 2	Open	1 & 2	2 & 3	Open	Open	2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	JP23	JP36	JP42	JP43	JP44	JP45
CX486M6	2 & 3	1 & 2, 4 & 5	Open	1 & 2	1 & 2	Open
CX486S	2 & 3	1 & 2, 4 & 5	Open	1 & 2	1 & 2	Open
80486SX	1 & 2	1 & 2, 4 & 5	Open	1 & 2	1 & 2	Open
SL80486SX	1 & 2	1 & 2, 4 & 5	Open	1 & 2	1 & 2	Open
CX486M7	2 & 3	1 & 2, 4 & 5	Open	1 & 2	1 & 2	Open
CX486DX	2 & 3	1 & 2, 4 & 5	Open	1 & 2	1 & 2	Open
AM486DX	1 & 2	1 & 2, 4 & 5	Open	1 & 2	1 & 2	Open
80486DX	1 & 2	1 & 2, 4 & 5	Open	1 & 2	1 & 2	Open
AM486DXL	1 & 2	1 & 2, 4 & 5	Open	1 & 2	2 & 3	Open
SL80486DX	1 & 2	1 & 2, 4 & 5	Open	1 & 2	1 & 2	Open
CX486DX2	2 & 3	1 & 2, 4 & 5	Open	1 & 2	1 & 2	Open
AM486DX2	1 & 2	1 & 2, 4 & 5	Open	1 & 2	1 & 2	Open
80486DX2	1 & 2	1 & 2, 4 & 5	Open	1 & 2	1 & 2	Open
AM486DX2L	1 & 2	1 & 2, 4 & 5	Open	1 & 2	2 & 3	Open
SL80486DX2	1 & 2	1 & 2, 4 & 5	Open	1 & 2	1 & 2	Open
CX486DX2-V	2 & 3	2 & 3, 5 & 6	Open	1 & 2	1 & 2	1 & 2
80486DX4	1 & 2	2 & 3, 5 & 6	1 & 2	Open	1 & 2	Open
P24T	1 & 2	1 & 2, 4 & 5	Open	1 & 2	1 & 2	Open
P24D	1 & 2	1 & 2, 4 & 5	Open	1 & 2	1 & 2	Open
Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION
Speed	JP24	JP25	JP26	JP30	JP31
20MHz	1 & 2	2 & 3	2 & 3	1 & 2	1 & 2
25MHz	2 & 3	2 & 3	1 & 2	1 & 2	1 & 2
33MHz	2 & 3	1 & 2	2 & 3	1 & 2	1 & 2
40MHz	1 & 2	2 & 3	1 & 2	2 & 3	2 & 3
50iMHz	2 & 3	2 & 3	1 & 2	1 & 2	1 & 2
50MHz	1 & 2	1 & 2	2 & 3	2 & 3	2 & 3
66iMHz	2 & 3	1 & 2	2 & 3	1 & 2	1 & 2
75iMHz	2 & 3	2 & 3	1 & 2	1 & 2	1 & 2
80iMHz	1 & 2	2 & 3	1 & 2	2 & 3	2 & 3
100iMHz	2 & 3	1 & 2	2 & 3	1 & 2	1 & 2
Note: Pins designated should be in the closed position.

CACHE JUMPER CONFIGURATION
Size	JP17	JP18	JP19	JP27	JP32	JP33	JP34
64KB	1 & 2	2 & 3	Open	2 & 3	1 & 2	1 & 2	1 & 2
128KB	2 & 3	1 & 2	1 & 2, 3 & 4	2 & 3	1 & 2	1 & 2	2 & 3
256KB	1 & 2	1 & 2	2 & 3, 4 & 5	2 & 3	1 & 2	2 & 3	2 & 3
512KB	2 & 3	1 & 2	1 & 2, 3 & 4	2 & 3	2 & 3	2 & 3	2 & 3
1MB	1 & 2	1 & 2	2 & 3, 4 & 5	1 & 2	2 & 3	2 & 3	2 & 3
Note: Pins designated are in the closed position.