Personal Computer PC-6 Motherboard Settings and Configuration

Processor	8088
Processor Speed	4.77MHz
Chip Set	None
Max. Onboard DRAM	640KB
Cache	None
BIOS	NCR
Dimensions	330mm x 218mm
I/O Options	Parallel port, serial ports (2), floppy drive interface
NPU Options	8087

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 2	COM2	Front control panel	J7
Serial port 1	COM1	Parallel port	LPT
Cooling fan	FAN	Speaker	SPK
Floppy drive interface	J1

USER CONFIGURABLE SETTINGS
Function		Jumper/Switch	Position
»	Factory configured - do not alter	JP2	N/A
»	Factory configured - do not alter	JP3	N/A
»	Factory configured - do not alter	JP4	N/A
»	Factory configured - do not alter	JP5	N/A
»	Factory configured - do not alter	JP6	N/A
»	Factory configured - do not alter	JP7	N/A
»	Factory configured - do not alter	SW1/1	N/A
»	NPU absent	SW1/2	On
	NPU present	SW1/2	Off
»	Factory configured - do not alter	SW1/3	Off
»	Factory configured - do not alter	SW1/4	Off
»	Serial ports enabled	SWA/3	On
	Serial ports disabled	SWA/3	Off
»	Parallel port enabled	SWA/4	On
	Parallel port disabled	SWA/4	Off
»	Factory configured - do not alter	SWA/5	On
»	Factory configured - do not alter	SWA/6	N/A
»	Factory configured - do not alter	SWA/7	N/A
»	Factory configured - do not alter	SWA/8	N/A

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
256KB	(9) 4164	(9) 4164	(9) 4164	(9) 4164
256KB	(9) 41256	NONE	NONE	NONE
448KB	(9) 4164	(9) 4164	(9) 41256	(9) 4164
512KB	(9) 41256	(9) 41256	NONE	NONE
640KB	(9) 41256	(9) 41256	(9) 4164	NONE
640KB	(9) 41256	(9) 41256	(9) 4164	(9) 4164

DRAM SWITCH CONFIGURATION
Size	SWA/1	SWA/2
256KB	Off	Off
256KB	Off	On
448KB	On	Off
512KB	N/A	N/A
640KB	On	On
640KB	N/A	N/A

FLOPPY DRIVE CONFIGURATION
Drives installed	SW1/7	SW1/8
1	On	On
2	Off	On
3	On	Off
4	Off	Off

MONITOR CONFIGURATION
Size	SW1/5	SW1/6
Monochrome	Off	Off
80 x 25 color	On	Off
40 x 25 color	Off	On
None	On	On