ERGOPRO C4/D4 V-SERIES Motherboard Settings and Configuration

Processor	80486SX/80486SX2/80486DX2
Processor Speed	33/50(internal)/66(internal)MHz
Chip Set	OPTI
Max. Onboard DRAM	64MB
Cache	256KB
BIOS	ICL
Dimensions	330mm x 218mm
I/O Options	PS/2 mouse port, parallel port, serial ports (2), VGA port, VGA feature connector, floppy drive interface, IDE interface, riser slot
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
VGA port	CN1	Floppy drive interface	CN8
Parallel port	CN2	Cache connector	CN9
Serial port 1	CN3	Chassis fan power	J2
Serial port 2	CN4	Front panel connector	J3
PS/2 mouse port	CN5	IDE interface LED	J4
VGA feature connector	CN6	Riser Card	SL1
IDE interface	CN7

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Factory configured - do not alter	J1	N/A
»	VGA IRQ9 enabled	JP1	pins 3 & 4 closed
	VGA IRQ9 disabled	JP1	pins 3 & 4 open
»	On board VGA enabled	JP1	pins 5 & 6 closed
	On board VGA disabled	JP1	pins 5 & 6 open
»	CMOS memory normal operation	JP1	pins 7 & 8 open
	CMOS memory clear	JP1	pins 7 & 8 closed
»	System lock disabled	JP1	pins 13 & 14 closed
	System lock enabled	JP1	pins 11 & 12 closed
»	Boot block write disabled	JP1	pins 15 & 16 open
	Boot block write enabled	JP1	pins 15 & 16 closed
»	Factory configured - do not alter	JP2	pins 7 - 16 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1
4MB	(1) 1M x 36	NONE
8MB	(1) 1M x 36	(1) 1M x 36
8MB	(1) 2M x 36	NONE
12MB	(1) 1M x 36	(1) 2M x 36
16MB	(1) 2M x 36	(1) 2M x 36
16MB	(1) 4M x 36	NONE
20MB	(1) 1M x 36	(1) 4M x 36
32MB	(1) 4M x 36	(1) 4M x 36
64MB	(1) 8M x 36	(1) 8M x 36

CACHE CONFIGURATION
Size	CN9
256KB	Card installed

CPU SPEED CONFIGURATION
Speed	JP1
33MHz	pins 9 & 10 open
50iMHz	pins 9 & 10 closed
66iMHz	pins 9 & 10 open

VRAM CONFIGURATION
Size	Bank 0	Bank 1
512KB	(1) 256K x 16	NONE
1MB	(1) 256K x 16	(1) 256K x 16