TURBO-640 Motherboard Settings and Configuration

Processor	8088
Processor Speed	8MHz
Chip Set	None
Max. Onboard DRAM	640KB
Cache	None
BIOS	Unidentified
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	8087

CONNECTIONS
Purpose	Location	Purpose	Location
Reset switch	JP1	Turbo LED	JP4
Keylock	JP2	Speaker	JP5
Turbo switch	JP3

USER CONFIGURABLE SETTINGS
Function		Switch	Position
»	Factory configured - do not alter	SW1/1	Off
»	NPU disabled	SW1/2	On
	NPU enabled	SW1/2	Off

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
128KB	(9) 41256	NONE	NONE	NONE
192KB	(9) 41256	NONE	NONE	NONE
256KB	(9) 41256	NONE	NONE	NONE
512KB	(9) 41256	(9) 41256	NONE	NONE
576KB	(9) 41256	(9) 41256	(9) 4164	NONE
640KB	(9) 41256	(9) 41256	(9) 4164	(9) 4164

DRAM SWITCH CONFIGURATION
Size	SW1/3	SW1/4
128KB	Off	On
192KB	On	Off
256KB	Off	Off
512KB	Off	Off
576KB	Off	Off
640KB	Off	Off

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

MONITOR CONFIGURATION
Type	SW1/5	SW1/6
None installed	On	On
80 x 25 color	On	Off
Monochrome	Off	Off