UNIDENTIFIED EGA-PC/P Category Video Video Types Supported CGA, Monochrome Video Processor Unidentified Highest Resolution 720 x 348 Supported Data Bus Type 8-bit ISA Memory Type DRAM Maximum Onboard Memory Unidentified [Image] CONNECTIONS Purpose Location Purpose Location 9-pin digital video CN1 Light pen connector CN4 port RCA video connector CN2 VESA Feature J4 connector RCA video connector CN3 SINGLE MONITOR CONFIGURATIONS Setting SW1/1 SW1/2 SW1/3 SW1/4 Monochrome Off Off On Off RGB 40 x 25 On Off Off On RGB 80 x 25 Off Off Off On ECD 200-line On On On Off ECD 350-line Off On On Off CARD ATTACHED TO PRIMARY MONITOR CONFIGURATIONS Primary/Secondary Monitor SW1/1 SW1/2 SW1/3 SW1/4 RGB 40 x 25/monochrome On Off Off On RGB 80 x 25/monochrome Off Off Off On ECD low On On On Off resolution/monochrome ECD high Off On On Off resolution/monochrome Monochrome/RGB 80 x 25 Off Off On Off Monochrome/RGB 40 x 25 On Off On Off CARD ATTACHED TO SECONDARY MONITOR CONFIGURATIONS Primary/Secondary SW1/1 SW1/2 SW1/3 SW1/4 Monitor RGB 40 x 25/monochrome On On Off On RGB 80 x 25/monochrome Off On Off On Monochrome/ECD low On Off On On resolution Monochrome/ECD high Off Off On On resolution Monochrome/RGB 40 x 25 On On On On Monochrome/RGB 80 x 25 Off On On On INTELLIGENT MODE Setting SW1/5 Enabled On Disabled Off I/O ADDRESS RANGE SELECTION Address Range P3 3xxh Pins 2 & 3 closed 2xxh Pins 1 & 2 closed