Class 3315 Motherboard Settings and Configuration

Processor	80386SX
Processor Speed	20MHz
Chip Set	SMD
Max. Onboard DRAM	16MB
Cache	None
BIOS	NCR
Dimensions	330mm x 218mm
I/O Options	Floppy drive interfaces (2), IDE interface, parallel port, serial ports (2), VGA port
NPU Options	80387SX

CONNECTIONS
Purpose	Location	Purpose	Location
Keyboard	J1	Auxiliary DC power supply	J10
2.88MB floppy drive interface	J3	DC power supply	P1
Parallel port	J4	VGA pass-through	P2
Serial port 2	J5	IDE interface	P8
Serial port 1	J6	Floppy drive interface	P9
Riser card	J7	Drive power supply	P10
VGA interface	J8	Speaker volume control	VC

USER CONFIGURABLE SETTINGS
Function		Jumper/Switch	Position
»	Password check enabled	RK1A & RK1B	open
	Password clear	RK1A & RK1B	closed
»	VGA interface enabled	SW1/switch 1	open
	VGA interface disabled	SW1/switch 1	closed
»	Monitor type select color	SW1/switch 2	closed
	Monitor type select monochrome	SW1/switch 2	open

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
2MB	(2) 1M x 9	NONE	NONE	NONE
4MB	(2) 1M x 9	(2) 1M x 9	NONE	NONE
6MB	(2) 1M x 9	(2) 1M x 9	(2) 1M x 9	NONE
8MB	(2) 1M x 9	(2) 1M x 9	(2) 1M x 9	(2) 1M x 9
8MB	(2) 4M x 9	NONE	NONE	NONE
12MB	(2) 1M x 9	(2) 1M x 9	(2) 4M x 9	NONE
16MB	(2) 4M x 9	(2) 4M x 9	NONE	NONE