Processor	CX486M6/80486SX/AM486DX/CX486M7/80486DX/80486DX2/Pentium Overdrive
Processor Speed	25/33/40/50(internal)/50/66(internal)MHz
Chip Set	Contaq
Max. Onboard DRAM	128MB
Cache	256/512/1024KB
BIOS	AMI
Dimensions	285mm x 220mm
I/O Options	32-bit VESA local bus slots (3), green PC connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	JP2	Turbo switch	JP19
Green PC connector	JP3	Green PC connector	JP20
Power LED & keylock	JP16	Turbo LED	JP21
Speaker	JP17	Reset switch	JP26
Green PC LED	JP18	32-bit VESA local bus slots	SL1 - SL3

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	CMOS memory normal operation	JP1	pins 1 & 2 closed
	CMOS memory clear	JP1	pins 2 & 3 closed
	Monitor type select color/EGA/PGA/VGA	JP4	Open
	Monitor type select CGA	JP4	Closed
	BIOS voltage select 5v	JP5	pins 1 & 2 closed
	BIOS voltage select 12v	JP5	pins 2 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	NONE	NONE	(4) 256K x 9	NONE
1MB	(1) 256K x 36	NONE	NONE	NONE
2MB	NONE	NONE	(4) 256K x 9	(4) 256K x 9
2MB	(1) 256K x 36	(1) 256K x 36	NONE	NONE
2MB	NONE	(1) 256K x 36	(4) 256K x 9	NONE
2MB	(1) 256K x 36	NONE	NONE	(4) 256K x 9
4MB	NONE	NONE	(4) 1M x 9	NONE
4MB	(1) 1M x 36	NONE	NONE	NONE
8MB	NONE	NONE	(4) 1M x 9	(4) 1M x 9
8MB	(1) 1M x 36	(1) 1M x 36	NONE	NONE
8MB	NONE	(1) 1M x 36	(4) 1M x 9	NONE
8MB	(1) 1M x 36	NONE	NONE	(4) 1M x 9
16MB	NONE	NONE	(4) 4M x 9	NONE
16MB	(1) 4M x 36	NONE	NONE	NONE
20MB	NONE	NONE	(4) 1M x 9	(4) 4M x 9
20MB	(1) 1M x 36	(1) 4M x 36	NONE	NONE
20MB	NONE	(1) 4M x 36	(4) 1M x 9	NONE
20MB	(1) 4M x 36	NONE	NONE	(4) 1M x 9
32MB	NONE	NONE	(4) 4M x 9	(4) 4M x 9
32MB	(1) 4M x 36	(1) 4M x 36	NONE	NONE
32MB	NONE	(1) 4M x 36	(4) 4M x 9	NONE
32MB	(1) 4M x 36	NONE	NONE	(4) 4M x 9
64MB	NONE	NONE	(4) 16M x 9	NONE
80MB	NONE	NONE	(4) 4M x 9	(4) 16M x 9
80MB	NONE	(1) 4M x 36	(4) 16M x 9	NONE
128MB	NONE	NONE	(4) 16M x 9	(4) 16M x 9

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
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) 64K x 8
512KB (B)	(4) 128K x 8	NONE	(1) 32K x 8
1MB	(4) 128K x 8	(4) 128K x 8	(1) 128K x 8

CACHE JUMPER CONFIGURATION
Size	JP6	JP11	JP12
256KB	Open	pins 1 & 2 closed	pins 1 & 2 closed
512KB	Open	pins 2 & 3 closed	pins 2 & 3 closed
1MB	pins 2 & 3 closed	pins 2 & 3 closed	pins 2 & 3 closed

CPU TYPE CONFIGURATION
Type	JP8	JP9	JP10	JP15
CX486M6	pins 2 & 3 closed	Open	Open	pins 2 & 3 closed
80486SX (PQFP)	pins 2 & 3 closed	Open	Open	pins 1 & 2 closed
80486SX (PGA)	pins 2 & 3 closed	Open	Open	pins 1 & 2 closed
CX486M7	pins 1 & 2, 3 & 4 closed	pins 2 & 3 closed	Open	pins 2 & 3 closed
AM486DX	pins 1 & 2, 3 & 4 closed	pins 2 & 3 closed	Open	pins 1 & 2 closed
80486DX	pins 1 & 2, 3 & 4 closed	pins 2 & 3 closed	Open	pins 1 & 2 closed
80486DX2	pins 1 & 2, 3 & 4 closed	pins 2 & 3 closed	Open	pins 1 & 2 closed
P24T	pins 1 & 2, 3 & 4 closed	pins 1 & 2 closed	Closed	pins 1 & 2 closed
Note: The location of the PQFP is unidentified.

CPU SPEED CONFIGURATION
Speed	JP13	JP14	JP22	JP23	JP27	JP28
25MHz	Closed	3 & 4, 5 & 6	Open	Open	2 & 4	2 & 3
33MHz	Open	5 & 6	Open	Closed	2 & 4	2 & 3
40MHz	Open	1 & 2, 3 & 4	Closed	Closed	1 & 2	1 & 2
50iMHz	Closed	3 & 4, 5 & 6	Open	Open	2 & 4	2 & 3
50MHz	Open	1 & 2	Closed	Closed	1 & 2	1 & 2
66iMHz	Open	5 & 6	Open	Closed	2 & 4	2 & 3
Note: Pins designated should be in the closed position.