LASER TURBO XT-2 Motherboard Settings and Configuration

Processor	8088
Processor Speed	Unidentified
Chip Set	Unidentified
Video Chip Set	None
Maximum Onboard Memory	1MB
Maximum Video Memory	None
Cache	None
BIOS	Unidentified
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	8087

CONNECTIONS
Purpose	Location	Purpose	Location
Auxiliary power connector	CN1	Front panel connector	J12
Speaker	J11	Reset switch	JP3

USER CONFIGURABLE SETTINGS
Function		Label	Position
	Parity check enabled	JP5	Pins 1 & 2 closed
	Parity check disabled	JP5	Pins 2 & 3 closed
»	Factory configured - do not alter	SW1/1	Off
	NPU not installed	SW1/2	On
	NPU installed	SW1/2	Off
»	Factory configured - do not alter	SW1/4	Unidentified
»	Factory configured - do not alter	SW2/4	Unidentified

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
512KB (A)	None	None	None	(16) 41256
512KB (B)	None	(16) 41256	None	None
640KB (A)	(4) 4464	None	None	(16) 41256
1MB (B)	None	(16) 41256	(16) 41256	None
Note: A = conventional memory. B = expanded memory.

DRAM PARITY CONFIGURATION
Size	U25/U41	U35/U40	U58/U59	U76/U77
512KB (A)	(2) 41256	None	None	None
512KB (B)	None	None	(2) 41256	None
640KB (A)	(2) 41256	(2) 4164	None	None
1MB (B)	None	None	(2) 41256	(2) 41256
Note: A = conventional memory. B = expanded memory.

DRAM SWITCH CONFIGURATION
Size	SW1/3
512KB	On
640KB	Off

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

MONITOR SELECTION
Type	SW1/5	SW1/6
EGA	On	On
Color (40 x 25)	Off	On
Color (80 x 25)	On	Off
Monochrome	Off	Off

I/O PORT ADDRESS SELECTION
Address	SW2/1	SW2/2	SW2/3
208	Off	On	On
218	On	Off	On
258	Off	Off	On
268	On	On	Off
2A8	Off	On	Off
2B8	On	Off	Off
2E8	Off	Off	Off
Expansion memory disabled	On	On	On