Processor	CX486M6/80486SX/80487SX/CX486M7/80486DX/80486DX2/80486DX4/ Pentium Overdrive
Processor Speed	25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Chip Set	OPTI
Max. Onboard DRAM	128MB
Cache	64/128/256/512KB
BIOS	Award
Dimensions	254mm 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	J2	Green PC connector	JP39
Power LED & keylock	JP22	Green PC LED	JP41
Turbo LED	JP34	Reset switch	S1
Turbo switch	JP36	32-bit VESA local bus slots	SL1 - SL3
Speaker	JP38

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select monochrome	JP1	Open
	Monitor type select color	JP1	Closed
»	CMOS memory normal operation	JP2	pins 2 & 3 closed
	CMOS memory clear	JP2	pins 1 & 2 closed
»	Factory configured - do not alter	JP6	Open
»	Factory configured - do not alter	JP7	Closed
»	P24D cache type select write back	JP19	pins 1 & 2 closed
	P24D cache type select write through	JP19	pins 2 & 3 closed
»	CPU type select all	JP22	Open
	CPU type select CX486M7 2x only	JP22	Closed
»	Factory configured - do not alter	JP31	Open

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
2MB	(4) 256K x 9	(1) 256K x 36	NONE	NONE
2MB	NONE	(1) 512K x 36	NONE	NONE
4MB	(4) 1M x 9	NONE	NONE	NONE
4MB	NONE	(1) 1M x 36	NONE	NONE
8MB	(4) 1M x 9	(1) 1M x 36	NONE	NONE
8MB	NONE	(1) 2M x 36	NONE	NONE
16MB	(4) 4M x 9	NONE	NONE	NONE
16MB	NONE	(1) 4M x 36	NONE	NONE
16MB	(4) 1M x 9	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
16MB	NONE	(1) 2M x 36	(1) 2M x 36	NONE
32MB	(4) 4M x 9	(1) 4M x 36	NONE	NONE
32MB	NONE	(1) 4M x 36	(1) 4M x 36	NONE
64MB	NONE	(1) 16M x 36	NONE	NONE
64MB	(4) 4M x 9	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
128MB	NONE	(1) 16M x 36	(1) 16M x 36	NONE

DRAM JUMPER CONFIGURATION
Type	JP5
Bank 0 = 30 pin SIMM	pins 2 & 3 closed
Bank 0 = 72 pin SIMM	pins 1 & 2 closed

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) 16K 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	JP8	JP27	JP28	JP43	JP44
64KB	2 & 3	Open	Open	Open	1 & 2
128KB	1 & 2	Closed	Open	Open	1 & 2
256KB	2 & 3	Closed	Closed	Open	2 & 3
256KB	2 & 3	Closed	Closed	Open	1 & 2
512KB	1 & 2	Closed	Closed	Closed	1 & 2
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type	JP9	JP11	JP13	JP15	JP23	JP32
CX486M6	Closed	2 & 3	Open	Open	2 & 3	1 & 2
80486SX	Open	1 & 2	Open	Open	2 & 3	Open
80487SX	Open	1 & 2	2 & 3	Open	1 & 2, 3 & 4	Open
CX486M7	Closed	2 & 3	1 & 2	Open	1 & 2, 3 & 4	Open
80486DX	Open	1 & 2	1 & 2	Open	1 & 2, 3 & 4	Open
80486DX2	Open	1 & 2	1 & 2	Open	1 & 2, 3 & 4	Open
80486DX4	Open	1 & 2	1 & 2	Open	1 & 2, 3 & 4	Open
P24D	Open	2 & 3	1 & 2	Closed	1 & 2, 3 & 4	2 & 3
P24T	Open	2 & 3	1 & 2	Closed	1 & 2, 3 & 4	2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type	JP10	JP12	JP20	JP21
Non SL-enhanced	Open	Open	Open	Open
SL-enhanced	Closed	pins 1 & 2 closed	Closed	Closed

CPU SPEED CONFIGURATION
Speed	JP16	JP17	JP18
25MHz	Open	Open	Open
33MHz	Open	Closed	Closed
40MHz	Open	Closed	Open
50iMHz	Open	Open	Open
50MHz	Open	Open	Closed
66iMHz	Open	Closed	Closed
75iMHz	Open	Open	Open
100iMHz	Open	Closed	Closed

CPU SPEED CONFIGURATION (80486DX4 ONLY)
Speed	JP30
2x	pins 1 & 2 closed
2.5x	pins 2 & 3 closed
3x	Open

CPU VOLTAGE CONFIGURATION
Voltage	JP29
3.45v	pins 3 & 5, 4 & 6 closed
5v	pins 1 & 3, 2 & 4 closed

VESA WAIT STATE CONFIGURATION
Wait states	JP35
0 wait states	Open
1 wait state	Closed

BUS SPEED CONFIGURATION
CPU speed	JP33	JP37
<= 33MHz	pins 2 & 3 closed	Open
> 33MHz	pins 1 & 2 closed	Closed