786 ACIO VESA MOTHERBOARD Motherboard Settings and Configuration

Processor	80386DX/CX486DLC/80486SX/80486DX/80486DX2
Processor Speed	25/33/40/50(internal)/50/66(internal)MHz
Chip Set	Unknown
Max. Onboard DRAM	32MB
Cache	64/128/256KB
BIOS	Unknown
Dimensions	254mm x 218mm
I/O Options	32-bit VESA local bus slots (2)
NPU Options	80387DX

CONNECTIONS
Purpose	Location	Purpose	Location
Power LED & keylock	J2	External battery	J7
Turbo switch	J4	Speaker	J100
Turbo LED	J5	32-bit VESA Local bus slot	S1
Reset switch	J6	32-bit VESA Local bus slot	S2

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select color	J3	Closed
	Monitor type select monochrome	J3	Open
»	CMOS memory normal operation (Internal battery)	JMP3	pins 2 & 3 closed
»	CMOS memory normal operation (External battery)	JMP3	pins 1 & 2 closed
	CMOS memory clear	JMP3	pins 2 & 4 closed
»	NPU enabled	JMP4	pins 1 & 2 closed
	NPU disabled	JMP4	pins 2 & 3 closed
»	Factory configured - do not alter	JMP6	pins 1 & 4 closed
»	VESA local bus enabled	JMP10	Open
	VESA local bus disabled	JMP10	Closed

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) 1M x 9	(4) 256K x 9
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE
32MB	(4) 4M x 9	(4) 4M x 9
Note:The exact locations of Bank 0 & Bank 1 is unknown.

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG/U26	TAG/U27
64KB	(4) 8K x 8	(4) 8K x 8	(1) 8K x 8	(1) 8K x 8
128KB	(4) 32K x 8	NONE	(1) 8K x 8	(1) 8K x 8
256KB	(4) 32K x 8	(4) 32K x 8	(1) 32K x 8	(1) 32K x 8
Note:The exact locations of Bank 0 & Bank 1 is unknown.

CACHE JUMPER CONFIGURATION
Size	JMP1A	JMP1B	JMP1C	JMP8
64KB	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 and 4 & 5
128KB	pins 2 & 3 closed	pins 1 & 2 closed	pins 2 & 3 closed	pins 2 & 3 and 4 & 5
256KB	pins 2 & 3 closed	pins 2 & 3 closed	pins 2 & 3 closed	pins 2 & 3 and 5 & 6
Note:Pins designated should be in the closed position. The exact locations of Banks 0 & Bank 1 is unknown.

CPU TYPE CONFIGURATION
Type	JMP2	JMP5	JMP7	JMP12	JMP13
80386DX	Open	Closed	Open	Open	pins 2 & 3 and 5 & 6
CX486DLC	Open	Open	Closed	Closed	pins 1 & 2 and 4 & 5
80486SX	pins 1 & 2 closed	Open	Closed	Closed	pins 1 & 2 and 4 & 5
80486DX	pins 2 & 3 closed	Open	Closed	Closed	pins 1 & 2 and 4 & 5
80486DX2	pins 2 & 3 closed	Open	Closed	Closed	pins 1 & 2 and 4 & 5
Note:Pins designated should be in the closed position.

CPU SPEED CONFIGURATION
Speed	JMP9	JMP14
80386DX/25MHz	pins 1 & 5 and 2 & 6 closed	pins 1 & 2 closed
80386DX/33MHz	pins 1 & 5 and 4 & 8 closed	pins 1 & 2 closed
80386DX/40MHz	1 & 5, 3 & 7 and 4 & 8 closed	pins 1 & 2 closed
80486SX/50MHz	pins 3 & 7 closed	pins 2 & 3 closed
80486DX/25MHz	pins 2 & 6 closed	pins 1 & 2 closed
80486DX/33MHz	pins 4 & 8 closed	pins 1 & 2 closed
80486DX2/50i MHz	pins 2 & 6 closed	pins 2 & 3 closed
80486DX2/66i MHz	pins 4 & 8 closed	pins 1 & 2 closed