MONOLITHIC SYSTEMS, INC. (COLORADO MSI) MicroFrame 386S Processor 80386SX Processor speed 16/20MHz Chip Set C & T Max. Onboard DRAM 4MB Cache None BIOS AMI/Quadtel Dimensions 330mm x 218mm I/O Options Parallel port, serial ports (2), floppy drive interface, IDE interface, bus mouse port NPU Options 80387SX [Image] CONNECTIONS Purpose Location Purpose Location External battery J1 Auxiliary Keyboard J8 CMOS Reset switch J2 IDE interface J9 Floppy drive LED J3 Floppy drive J11 interface No connection (key) J6 pin 1 CPU ready LED J12 -Ready J6 pin 2 Reset switch J13 -Keyboard disabled J6 pin 3 Parallel port J14 No connection J6 pin 4 Serial port (COM1) J19 No connection J6 pin 5 Serial port (COM2) J20 -Disk J6 pin 6 Digital video J22 -Reset J6 pin 7 Analog video J23 -GND J6 pin 8 Speaker J24 -Speaker J6 pin 9 IDE interface LED J28 +5VDC J6 pin 10 Power LED & keylock J52 Bus mouse port J7 USER CONFIGURABLE SETTINGS Function Jumper Position » IDE Interface - pin 34 is not J15 Open grounded IDE Interface - pin 34 is grounded J15 Closed » Factory configured - do not alter J16 pins 1 & 2 closed » Parallel port (J14) select J21 Closed LPT1/IRQ7 Parallel port (J14) disabled J21 Open » Serial port (J19) select COM1/IRQ4 J25 Closed Serial port (J19) disabled J25 Open » DMA signal select default-high J26 pins 1 & 2 closed DMA signal select default-low J26 pins 2 & 3 closed » Serial port (J20) select COM2/IRQ3 J30 Closed Serial port (J20) disabled J30 Open » Floppy precompensation select 125ns J31 Open Floppy precompensation select 187ns J31 Closed » Floppy drive speed select single J32 Open speed Floppy drive speed select dual J32 Closed speed » Floppy disk change signal enabled J33 Closed Floppy disk change signal disabled J33 Open » On-board video port enabled J34 Closed On-board video port disabled J34 Open » Pipeline mode enabled J35 Closed Pipeline mode disabled J35 Open » Factory configured - do not alter J36 Open » Factory configured - do not alter J37 pins 1 & 2 closed » On-board video mode select 16-bit J38 Open On-board video mode select 8-bit J38 Closed » NPU disabled J39 Open NPU enabled J39 Closed USER CONFIGURABLE SETTINGS (CON’T) Function Jumper Position » Factory configured - do not alter J42 pins 1 & 2 closed » Bus mouse port (J7) interface J45 Closed select IRQ12 Bus mouse port (J7) interface J45 Open select none Keyboard controller type select J48 pins 1 & 2 without mouse support closed Keyboard controller type select J48 pins 2 & 3 with mouse support closed » Monitor type select color J51 pins 2 & 3 closed Monitor type select monochrome J51 pins 1 & 2 closed » Factory configured - do not alter J53 Open » IRQ5 enabled (Rev. B and later) J54 Closed IRQ5 disabled (Rev. B and later) J54 Open » On-board mouse support enabled J55 pins 1 & 2 (Rev. B and later) closed On-board mouse support disabled J55 pins 1 & 2 (Rev. B and later) closed DRAM CONFIGURATION Size Bank 0 Bank 1 512KB (2) 256K x 9 NONE 1MB (2) 256K x 9 (2) 256K x 9 2MB (2) 1M x 9 NONE 4MB (2) 1M x 9 (2) 1M x 9 VIDEO DISPLAY MODE JUMPERS BIOS BIOS JP27 Primary Secondary pins Adapter Adapter 1 & 2 3 & 4 5 & 6 7 & 8 9 & 10 JP29 MDA *EGA w/CD Closed Closed Closed Closed Open 1 & 40x25 2 MDA *EGA w/CD Open Closed Closed Closed Open 1 & 80x25 2 MDA *EGA w/ED Closed Open Closed Closed Open 1 & 200 line 2 MDA *EGA w/ED Open Open Closed Closed Open 1 & 350 line 2 CGA *EGA w/MD Closed Closed Open Closed Open 2 & 40x25 3 CGA *EGA w/MD Open Closed Open Closed Open 2 & 80x25 3 *EGA MDA or Closed Open Open Closed Open 1 & w/CD none 2 40x25 *EGA MDA or Open Open Open Closed Open 1 & w/CD none 2 80x25 *EGA MDA or Closed Closed Closed Open Open 1 & w/ED200 none 2 line *EGA MDA or Open Closed Closed Open Open 1 & w/ED350 none 2 line *EGA CGA 40x25 Closed Open Closed Open Open 2 & w/MD or none 3 *EGA CGA 80x25 Open Open Closed Open Open 2 & w/MD or none 3 All VGA N/A N/A N/A N/A N/A Closed N/A Modes Note:Settings marked with an asterisk (*) indicate configuration of the onboard video adapter, other configurations require an optional video card. Pins designated should be in the closed position. CD = Color Display (CGA) ED = Enhanced color display (EGA) MD = Monochrome Display IOCHRDY SIGNAL CONFIGURATION Drive J17 J18 Pin 21 CDC/Imprimis/Miniscribe/Maxtor/Seagate Closed Open pin 27 Quantum Open Closed