Category	Video
Video Types Supported	CGA, EGA, Monochrome
Video Processor	Western Digital
Highest Resolution Supported	720 X 348
Data Bus Type	8-bit ISA
Memory Type	DRAM
Maximum Onboard Memory	256KB

CONNECTIONS
Purpose	Location	Purpose	Location
15-pin analog video port	CN1	Optional parallel port	P3
RCA video port 1	RCA1	32-pin feature connector	P4
RCA video port 2	RCA2	Parallel port upgrade socket	U25
Light pen connector	P2	Plus option socket	U30

VIDEO MODE CONFIGURATION
Type		Resolution	SW1/1	SW1/2	SW1/3	SW1/4	SW2
»	EGA	640 x 350	Off	On	On	Off	Off
	EGA	320 x 200	Off	On	On	Off	On
	CGA	320 x 200	On	On	On	Off	Off
	Monochrome	640 x 350	Off	Off	On	Off	Off
	Monochrome	720 x 348	Off	Off	On	Off	On

MONITOR TYPE
Type		E5
»	EGA	Pins 1 & 2 closed
	CGA	Pins 2 & 3 closed

DRAM JUMPER CONFIGURATION
Size		E1
»	64KB	Open
	256KB	Closed

PARALLEL PORT I/O ADDRESS SELECT
Address		E4
»	378h	Pins 1 & 2 closed
	278h	Pins 2 & 3 closed

PARALLEL PORT INTERRUPT SELECT
IRQ		E6
»	IRQ7	Pins 2 & 3 closed
	IRQ5	Pins 1 & 2 closed

FACTORY CONFIGURED SETTINGS
Jumper	Setting
E2	Closed
E3	Pins 1 & 2 closed

MISCELLANEOUS TECHNICAL NOTE

Note:The AST 3G-Plus comes equipped with 64KB of memory and is upgradeable to 256KB. The type of memory used and the location of Bank 0(the first 64KB) is unspecified in manufacturer documentation. Upgrade kits are available through AST.