MB-1333C-CH/1340C-CH Motherboard Settings and Configuration

BIOSTAR MICROTECH INTERNATIONAL CORPORATION

Processor	80386DX
Processor Speed	33/40MHz
Chip Set	C & T
Max. Onboard DRAM	32MB
Cache	256KB
BIOS	C & T
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	80387/3167

CONNECTIONS
Purpose	Location	Purpose	Location
Turbo LED	D4	Turbo switch	J50
Speaker	J18	Reset switch	J51
Power LED & keylock	J19	External battery	JP2

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Factory configured - do not alter	J21	Open
»	A20 gate enabled	J22	Closed
	A20 gate disabled	J22	Open
»	Monitor type select color	J23	Closed
	Monitor type select monochrome	J23	Open
»	CMOS memory normal operation	J42	pins 2 & 3 closed
	CMOS memory clear	J42	pins 1 & 2 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	J48
1MB	(4) 256K x 9	NONE	pins 2 & 3 closed
2MB	(4) 256K x 9	(4) 256K x 9	pins 2 & 3 closed
4MB	(4) 1M x 9	NONE	pins 2 & 3 closed
5MB	(4) 256K x 9	(4) 1 M x 9	pins 1 & 2 closed
8MB	(4) 1M x 9	(4) 1M x 9	pins 2 & 3 closed
16MB	(4) 4M x 9	NONE	pins 2 & 3 closed
17MB	(4) 4M x 9	(4) 256K x 9	pins 1 & 2 closed
20MB	(4) 4M x 9	(4) 1M x 9	pins 1 & 2 closed
32MB	(4) 4M x 9	(4) 4M x 9	pins 2 & 3 closed

CACHE CONFIGURATION
Size	Bank 0	TAG (U8)	TAG (U14 & U15)
64KB	(8) 16K x 4	NONE	(2) 16K x 4
256KB	(8) 64K x 4	(1) 64K x 4	(2) 64K x 4

CACHE JUMPER CONFIGURATION
Size	J25	J26	J27	J28	J29	J33	J34
64KB	Closed	Closed	Closed	Closed	Closed	1 & 2	1 & 2
256KB	Open	Open	Open	Open	Open	2 & 3	2 & 3
Note:Pins designated should be in the closed position.

POWER GOOD CONFIGURATION
Setting	J31	J32
Signal detect from power supply	pins 2 & 3 closed	pins 2 & 3 closed
Signal detect from board	pins 1 & 2 closed	pins 1 & 2 closed