12MHZ TURBO XT MAINBOARD Motherboard Settings and Configuration

Processor	8088
Processor Speed	12MHz
Chip Set	Unidentified
Max. Onboard DRAM	640KB
Cache	None
BIOS	Unidentified
Dimensions	220mm x 220mm
I/O Options	None
NPU Options	8087

CONNECTIONS
Purpose	Location	Purpose	Location
Power LED	CN3	Power LED & keylock	CN6
Reset switch	CN4	Turbo LED	CN7
Speaker	CN5	Turbo switch	CN8

USER CONFIGURABLE SETTINGS
Function		Jumper/Switch	Position
»	Memory wait state select 0 wait states	J6	Open
	Memory wait state select 1 wait state	J6	Closed
»	Parity check disabled	SW/1	On
	Parity check enabled	SW/1	Off
»	Factory configured - do not alter	SW/2	On

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2
256KB	(2) 414256 & (1) 41256	NONE	NONE
512KB	(2) 414256 & (1) 41256	(2) 414256 & (1) 41256	NONE
640KB	(2) 414256 & (1) 41256	(2) 414256 & (1) 41256	(2) 414256 & (1) 41256

DRAM SWITCH CONFIGURATION
Size	SW/3	SW/4
256KB	Off	On
512KB	On	Off
640KB	Off	Off

MONITOR DISPLAY CONFIGURATION
Display	SW/5	SW/6
Color (40 x 25)	Off	On
Color (80 x 25)	On	Off
Monochrome	Off	Off

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