SAMSUNG ELECTRONICS AMERICA, INC. SD820 Processor 80386SX Processor Speed 25MHz Chip Set Unidentified Max. Onboard DRAM 8MB Cache 64KB BIOS Phoenix Dimensions 330mm x 218mm I/O Options 32-bit external memory slots (2) NPU Options 80387SX/3167 [Image] CONNECTIONS Purpose Location Purpose Location Serial port 1 J1 Reset switch J24 Serial port 2 J2 Speaker J25 Parallel port J4 Front panel J26 connector Serial port header J5 32-bit external SL1 & SL2 memory card slots Serial port header J6 USER CONFIGURABLE SETTINGS Function Jumper Position » Printer acknowledge type select J7 pins 2 & 3 trailing edge closed Printer acknowledge type select J7 pins 1 & 2 leading edge closed » Parallel printer port enabled J8 pins 1 & 2 (LPT 1) closed Parallel printer port disabled J8 pins 2 & 3 (LPT 1) closed » Parallel printer port disabled J9 pins 2 & 3 (LPT 2) closed Parallel printer port enabled J9 pins 1 & 2 (LPT 2) closed » Serial port enabled (COM 1 & COM J10 & J11 pins 1 & 2 2) closed Serial port disabled (COM 1 & COM J10 & J11 pins 2 & 3 2) closed » Monitor type select color J12 pins 2 & 3 closed Monitor type select monochrome J12 pins 1 & 2 closed » Factory configured - do not alter J13 Open » ROM size select 64K J14 pins 1 & 2 closed ROM size select 128K J14 pins 2 & 3 closed » Factory configured - do not alter J15 Open » DRAM speed select 100 ns J22 pins 1 & 2 closed DRAM speed select 85 ns J22 pins 2 & 3 closed » Factory configured - do not alter J23 Open DRAM CONFIGURATION Size Bank 0 Bank 1 1MB (4) 256K x 9 NONE 2MB (4) 256K x 9 (4) 256K x 9 4MB (4) 1M x 9 NONE 8MB (4) 1M x 9 (4) 1M x 9 DRAM JUMPER CONFIGURATION Size J16 J17 J18 J19 1MB pins 2 & 3 pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed closed 2MB pins 2 & 3 pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed closed 4MB pins 1 & 2 pins 2 & 3 pins 2 & 3 pins 1 & 2 closed closed closed closed 8MB pins 1 & 2 pins 1 & 2 pins 2 & 3 pins 1 & 2 closed closed closed closed DRAM TYPE CONFIGURATION Type J20 J21 Static column pins 2 & 3 closed pins 1 & 2 closed Fast page mode pins 2 & 3 closed pins 2 & 3 closed Standard RAS/CAS pins 1 & 2 closed pins 1 & 2 closed