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  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Serial port 1  | 
 J1  | 
 Reset switch  | 
 J24  | 
| 
 Serial port 2  | 
 J2  | 
 Speaker  | 
 J25  | 
| 
 Parallel port  | 
 J4  | 
 Front panel connector  | 
 J26  | 
| 
 Serial port header  | 
 J5  | 
 32-bit external memory card slots  | 
 SL1 & SL2  | 
| 
 Serial port header  | 
 J6  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| 
 »  | 
 Printer acknowledge type select trailing edge  | 
 J7  | 
 pins 2 & 3 closed  | 
| 
 Printer acknowledge type select leading edge  | 
 J7  | 
 pins 1 & 2 closed  | |
| 
 »  | 
 Parallel printer port enabled (LPT 1)  | 
 J8  | 
 pins 1 & 2 closed  | 
| 
 Parallel printer port disabled (LPT 1)  | 
 J8  | 
 pins 2 & 3 closed  | |
| 
 »  | 
 Parallel printer port disabled (LPT 2)  | 
 J9  | 
 pins 2 & 3 closed  | 
| 
 Parallel printer port enabled (LPT 2)  | 
 J9  | 
 pins 1 & 2 closed  | |
| 
 »  | 
 Serial port enabled (COM 1 & COM 2)  | 
 J10 & J11  | 
 pins 1 & 2 closed  | 
| 
 Serial port disabled (COM 1 & COM 2)  | 
 J10 & J11  | 
 pins 2 & 3 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 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
| 
 2MB  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
| 
 4MB  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
| 
 8MB  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 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  |