M300 BS3CARD Motherboard Settings and Configuration

Processor	80386SX
Processor Speed	16MHz
Chip Set	Unidentified
Maximum Onboard Memory	4MB
Cache	None
BIOS	Unidentified
Dimensions	N/A
I/O Options	PS/2 mouse port
NPU Options	80387SX

CONNECTIONS
Function	Label
PS/2 mouse port	CN1

USER CONFIGURABLE SETTINGS
Setting		Label	Position
»	Factory configured - do not alter	JP3	Closed
»	Factory configured - do not alter	JP5	Closed
	A20GATE activated through keyboard control	JP6	Pins 1 & 2 closed
	A20GATE activated in fast mode	JP6	Pins 2 & 3 closed
	Video adapter - on board BIOS	JP9	Closed
	Video adapter - not on board BIOS	JP9	Open
	Mouse IRQ12 enabled	JP11	Closed
	Mouse IRQ12 disabled	JP11	Open

DRAM
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(1) 256K x 9	(1) 256K x 9	(1) 256K x 9	(1) 256K x 9
2MB	(1) 1M x 9	(1) 1M x 9	None	None
4MB	(1) 1M x 9	(1) 1M x 9	(1) 1M x 9	(1) 1M x 9

DRAM JUMPER
Setting	JP1	JP2
100ns fast page mode 4	Open	Open
100ns fast page mode 1	Open	Closed
100ns	Closed	Open
120ns	Closed	Closed

82335
Setting	JP4	JP7	JP8	JP10
82335A	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
82335B	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed

MISCELLANEOUS TECHNICAL NOTE

The location of pin 1 is unidentified on all jumpers.