Z-157 MODEL 2/MODEL 3 Motherboard Settings and Configuration

Processor	8088
Processor Speed	4.77MHz
Chip Set	Unidentified
Max. Onboard DRAM	640KB
Cache	None
BIOS	Unidentified
Dimensions	254mm x 218mm
I/O Options	Parallel port/keyboard slot
NPU Options	8087

CONNECTIONS
Purpose	Location
Propietary parallel port/keyboard slot	S1

USER CONFIGURABLE SETTINGS
Function		Switch	Position
»	RAM parity checking enabled	SW1/2	On
	RAM parity checking disabled	SW1/2	Off
»	RAM over 256KB on mother board	SW1/3	On
	RAM over 256KB on external memory card	SW1/3	Off
»	Parallel port enabled	SW1/6	On
	Parallel port disabled	SW1/6	Off
»	Floppy controller enabled	SW1/7	On
	Floppy controller disabled	SW1/7	Off

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

BOOT CONFIGURATION
Setting	SW1/0	SW1/1
MFM-150 Monitor RAM	Off	Off
MFM-150 Monitor RAM	On	On
Floppy disk	Off	On
Hard Drive	On	Off

MONITOR CONFIGURATION
Setting	SW1/4	SW1/5
Monochrome	Off	Off
CGA	On	Off
EGA	On	On

MISCELLANEOUS TECHNICAL NOTE

Note: Position 1 on SW1 is unidentified.