IP25AB Motherboard Settings and Configuration

Processor	80486SX/80486DX
Processor Speed	20/25/33MHz
Chip Set	ALI
Video Chip Set	None
Maximum Onboard Memory	32MB
Maximum Video Memory	None
Cache	None
BIOS	Acer
Dimensions	220mm x 170mm
I/O Options	None
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Power LED & keylock	CN1 pins 1 - 5	Turbo switch	CN1 pins 15 - 17
Speaker	CN1 pins 7 - 10	Reset switch	CN1 pins 19 & 20
Turbo LED	CN1 pins 12 & 13	External battery	J3
Note: If system has a 12-pin connector, make sure red wire is connected to pin 11.

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	CMOS memory normal operation	JP1	Open
	CMOS memory clear	JP1	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) 256K x 9	(4) 1M x 9
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

CPU SPEED SELECTION
Speed	JP2	JP3	JP4
20MHz	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 1 & 2, 3 & 4 closed
25MHz	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 3 & 4 closed
33MHz	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed