LEADING EDGE PRODUCTS, INC. MODEL M (MP1676L) Processor 8088 Processor Speed 7.16MHz Chip Set None Max. Onboard DRAM 256KB Cache None BIOS Leading Edge Dimensions 355mm x 304mm I/O Options Serial port, 32-bit external memory card slot, floppy drive interface NPU Options 8087 [Image] CONNECTIONS Purpose Location Purpose Location Serial port J8 No connection P6 DC power P1 & P2 32-bit external P7 memory card Keyboard connector P3 Floppy drive P8 interface Power LED P5 USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » Factory configured - do not JP1 Open alter » Serial port select IRQ3 JP2 pins 1 & 2 closed Serial port select IRQ4 JP2 pins 2 & 3 closed » Serial port select voltage JP3, JP4, JP5, & pins 1 & 2 interface JP6 closed Serial port select current JP3, JP4, JP5, & pins 2 & 3 interface JP6 closed » Serial port select COM1 JP10 pins 1 & 2 closed Serial port select COM2 JP10 pins 2 & 3 closed » Factory configured - do not SW1/1 Off alter » Factory configured - do not SW1/3 Off alter » Factory configured - do not SW1/4 Off alter » Factory configured - do not SW2/5 Off alter » Factory configured - do not SW2/6 Off alter » Factory configured - do not SW2/7 Off alter » Factory configured - do not SW2/8 Off alter » Self test select normal SW3/1 On operation Self test select SW3/1 Off continuously repeating » Monitor type select medium SW3/2 On resolution Monitor type select high SW3/2 Off resolution » Leading Edge PC advanced SW3/3 On features enabled Leading Edge PC advanced SW3/3 Off features disabled » Serial interface mode SW3/4 On XON/OFF disabled Serial interface mode SW3/4 Off XON/OFF enabled » Self test disabled SW3/5 On Self test enabled SW3/5 Off » NPU speed select 8MHz SW3/6 On NPU speed select 5MHz SW3/6 On » NPU disabled SW3/7 On NPU enabled SW3/7 On » CPU speed select fast SW3/8 On CPU speed select slow SW3/8 On DRAM CONFIGURATION Size Bank 0 256KB (9) HM50256P-15 Note:Memory is factory installed and is not configurable. DRAM SWITCH CONFIGURATION Size SW1/2 SW2/1 SW2/2 SW2/3 SW2/4 128KB On On Off On On 256KB On On Off Off On 384KB On On Off On Off 512KB On On Off Off Off 640KB Off On Off On On Note:Memory configurations above 256KB must use the proprietary memory expansion card. DRAM SWITCH CONFIGURATION Size SW2/5 SW2/6 None On On Monochrome Off Off 40 x 25 CGA Off On 80 x 25 CGA On Off