MB-1325/1333ACA-S Motherboard Settings and Configuration

Processor	80386SX/CX486SLC
Processor Speed	25/33MHz
Chip Set	Unidentified
Max. Onboard DRAM	16MB
Cache	None
BIOS	AMI
Dimensions	220mm x 220mm
I/O Options	None
NPU Options	80387SX

CONNECTIONS
Purpose	Location	Purpose	Location
Speaker	CN1 (pins 1 - 4)	Turbo switch	CN1 (pins 14 - 16)
Power LED & keylock	CN1 (pins 5 - 9)	+5v ground	CN1 (pins 17 - 18)
Turbo LED	CN1 (pins 10 - 11)	External battery	JP6
Reset switch	CN1 (pins 12 - 13)

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	CMOS memory normal operation	JP1	pins 1 & 2 closed
	CMOS memory clear	JP1	pins 2 & 3 closed
»	Parity check enabled	JP2	Open
	Parity check disabled	JP2	Closed
»	Chip type select 146818	JP4	Open
	Chip type select Dallas	JP4	Closed
»	Monitor type select monochrome	JP5	pins 1 & 2 closed
	Monitor type select color	JP5	pins 2 & 3 closed
»	Clock mode select synchronous	JP7	pins 1 & 2 closed
	Clock mode select asynchronous	JP7	pins 2 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1
512KB	(2) 256K x 9	NONE
1MB	(2) 256K x 9	(2) 256K x 9
2MB	(2) 1M x 9	NONE
4MB	(2) 1M x 9	(2) 1M x 9
8MB	(2) 4M x 9	NONE
16MB	(2) 4M x 9	(2) 4M x 9

CPU SPEED CONFIGURATION
Speed	JP3	JP8
25MHz	pins 2 & 3 closed	pins 1 & 2 closed
33MHz	pins 2 & 3 closed	pins 2 & 3 closed