Processor	80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor Speed	25/33/40/50(internal)/50/66(internal)MHz
Chip Set	Contaq
Max. Onboard DRAM	32MB
Cache	64/128/256KB
BIOS	AMI
Dimensions	248mm x 220mm
I/O Options	32-bit VESA local bus slots (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J1	Reset switch	J5
Power LED & keylock	J2	Speaker	J6
Turbo LED	J3	32-bit VESA local bus slots	SL1 & SL2
Turbo switch	J4

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	VGA card select Cirrus Logic 5426 only	JP29	pins 1 & 2 closed
	VGA card select non Cirrus Logic	JP29	pins 2 & 3 closed
»	VESA card select normal	JP105	pins 2 & 3 closed
	VESA card select special	JP105	pins 1 & 2 closed
Note: Jumpers JP29 & JP105 are only on the 486CCL.

DRAM CONFIGURATION
Size	Bank 0	Bank 1
1MB	(4) 256K x 9	NONE
2MB	(4) 256K x 9	(4) 256K x 9
4MB	(4) 1M x 9	NONE
5MB	(4) 256K x 9	(4) 1M x 9
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE
20MB	(4) 1M x 9	(4) 4M x 9
32MB	(4) 4M x 9	(4) 4M x 9

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

CACHE JUMPER CONFIGURATION
Size	RN4	RN5
64KB	Not installed	Not installed
128KB	Not installed	Installed
256KB	Installed	Not installed

CPU TYPE CONFIGURATION
Type	JP1	JP5
80486 PGA	Open	Open
80486 PQFP	Closed	Closed

CPU TYPE CONFIGURATION
Type	RN1	RN2	RN3
80486SX	Not installed	Installed	Not installed
ODP486SX	Not installed	Not installed	Installed
80487SX	Not installed	Not installed	Installed
80486DX/DX2	Installed	Not installed	Not installed

CPU SPEED CONFIGURATION
Speed	H1	H2	H3	ID3	JP30
25MHz	Closed	Open	Open	Open	Closed
33MHz	Open	Closed	Open	Open	Open
40MHz	Closed	Closed	Open	Open	Open
50iMHz	Closed	Open	Open	Open	Closed
50MHz	Open	Open	Closed	Closed	Open
66iMHz	Open	Closed	Open	Open	Open
Note: Jumper ID3 is only on the 486CCL.

VESA CARD TYPE CONFIGURATION
Card select	JP106	JP107
Any card	Closed	Closed
Weitek P9000 VL-Bus card only	Open	Open
Note: Jumpers JP106 & JP107 are only on the 486CCL.

BUS SPEED CONFIGURATION
CPU speed	JP102
<= 33MHz	pins 1 & 2 closed
> 33MHz	pins 2 & 3 closed

MISCELLANEOUS TECHNICAL NOTE

Note:Depending on mainboard version, it may not have VESA slots and associated jumpers.