DELL COMPUTER CORPORATION ARC SYSTEM BOARD Processor 8088 Processor Speed 4.77/8MHz Chip Set Unidentified Video Chip Set None Maximum Onboard Memory 640KB Maximum Video Memory None Cache None BIOS Unidentified Dimensions 330mm x 218mm I/O Options None NPU Options 8087 [Image] CONNECTIONS Purpose Location Purpose Location Light pen connector J2 Speaker J3 USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not alter C2 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 SW1/3 Off » Factory configured - do not alter SW1/4 Off DRAM CONFIGURATION Note: Board accepts 256KB/640KB memory. The configuration is unidentified. DRAM JUMPER CONFIGURATION Size C1 256KB Pins 1 & 2 closed 640KB Pins 2 & 3 closed VIDEO SELECTION Setting SW1/5 SW1/6 Monochrome Off Off CGA On Off EGA On On FLOPPY DRIVE SELECTION Drives installed SW1/7 SW1/8 1 On On 2 Off On 3 On Off 4 Off Off