SIEMENS NIXDORF INFORMATIONSSYTEME AG
U15002-C390
| 
 Processor  | 
 80486SX/80487SX/80486DX/80486DX2  | 
| 
 Processor Speed  | 
 25/33/50(internal)/66(internal)MHz  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Video Chip Set  | 
 None  | 
| 
 Maximum Onboard Memory  | 
 32MB  | 
| 
 Maximum Video Memory  | 
 None  | 
| 
 Cache  | 
 64/128/256KB  | 
| 
 BIOS  | 
 Unidentified  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 I/O Options  | 
 Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), feature connector, VGA port, riser slot  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 PS/2 mouse port  | 
 CN1  | 
 Floppy drive interface  | 
 CN7  | 
| 
 Serial port 1  | 
 CN2  | 
 IDE interface  | 
 CN8  | 
| 
 Serial port 2  | 
 CN3  | 
 Speaker  | 
 CN9  | 
| 
 Parallel port  | 
 CN4  | 
 Front panel connector  | 
 CN10  | 
| 
 VGA port  | 
 CN5  | 
 Riser slot  | 
 SL1  | 
| 
 Feature connector  | 
 CN6  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| 
 »  | 
 Battery type select internal  | 
 JP8  | 
 Pins 1 & 2 closed  | 
| 
 Battery type select external  | 
 JP8  | 
 Pins 2 & 3 closed  | |
| 
 »  | 
 Monitor type select color  | 
 JP10  | 
 Open  | 
| 
 
  | 
 Monitor type select monochrome  | 
 JP10  | 
 Closed  | 
| 
 »  | 
 PS/2 mouse IRQ12 enabled  | 
 JP11  | 
 Closed  | 
| 
 PS/2 mouse IRQ12 disabled  | 
 JP11  | 
 Open  | |
| 
 »  | 
 On board video enabled  | 
 JP25  | 
 Pins 1 & 2 closed  | 
| 
 On board video disabled  | 
 JP25  | 
 Pins 2 & 3 closed  | |
| 
 DRAM CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 4MB  | 
 (4) 1M x 9  | 
 None  | 
| 
 8MB  | 
 (4) 1M x 9  | 
 (4) 1M x 9  | 
| 
 16MB  | 
 (4) 4M x 9  | 
 None  | 
| 
 20MB  | 
 (4) 1M x 9  | 
 (4) 4M x 9  | 
| 
 32MB  | 
 (4) 4M x 9  | 
 (4) 4M x 9  | 
| 
 CACHE CONFIGURATION  | |||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 U48  | 
 U49  | 
 U50  | 
| 
 64KB  | 
 (4) 8K x 8  | 
 (4) 8K x 8  | 
 (1) 8K x 8  | 
 None  | 
 (1) 16K x 4  | 
| 
 128KB  | 
 (4) 32K x 8  | 
 None  | 
 (1) 8K x 8  | 
 None  | 
 (1) 16K x 4  | 
| 
 256KB  | 
 (4) 32K x 8  | 
 (4) 32K x 8  | 
 (1) 8K x 8  | 
 (1) 8K x 8  | 
 (1) 16K x 4  | 
| 
 Note: The location of banks 0 & 1 are unidentified.  | |||||
| 
 CACHE JUMPER CONFIGURATION  | ||||||
| 
 Size  | 
 JP12  | 
 JP13  | 
 JP14  | 
 JP15  | 
 JP16  | 
 JP17  | 
| 
 None  | 
 2 & 3  | 
 2 & 3  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 64KB  | 
 2 & 3  | 
 2 & 3  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 128KB  | 
 1 & 2  | 
 1 & 2  | 
 Closed  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 256KB  | 
 2 & 3  | 
 2 & 3  | 
 Closed  | 
 Closed  | 
 Closed  | 
 Closed  | 
| 
 Note: Pins designated should be in the closed position.  | ||||||
| 
 CPU SPEED SELECTION  | ||
| 
 Speed  | 
 JP5  | 
 JP6  | 
| 
 25MHz  | 
 Closed  | 
 Open  | 
| 
 33MHz  | 
 Open  | 
 Closed  | 
| 
 50iMHz  | 
 Closed  | 
 Open  | 
| 
 66iMHz  | 
 Open  | 
 Closed  | 
| 
 CPU TYPE SELECTION  | |||
| 
 Type  | 
 JP1  | 
 JP2  | 
 JP3  | 
| 
 80486SX  | 
 Open  | 
 Pins 1 & 2 closed  | 
 Open  | 
| 
 80487SX  | 
 Pins 2 & 3 closed  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
| 
 80486DX  | 
 Pins 1 & 2 closed  | 
 Pins 2 & 3 closed  | 
 Pins 1 & 2 closed  | 
| 
 80486DX2  | 
 Pins 1 & 2 closed  | 
 Pins 2 & 3 closed  | 
 Pins 1 & 2 closed  | 
| 
 MISCELLANEOUS TECHNICAL NOTE  | 
| 
 Note: The location of pin 1 is unidentified.  |