TANDON CORPORATION
TOWER486
| 
 Processor  | 
 80486SX  | 
| 
 Processor Speed  | 
 25/33MHz  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Max. Onboard DRAM  | 
 64MB (4MB or 8MB installed on board)  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 Unidentified  | 
| 
 Dimensions  | 
 355mm x 305mm  | 
| 
 I/O Options  | 
 External memory card, floppy drive interface, IDE interface  | 
| 
 NPU Options  | 
 4167  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 IDE interface  | 
 CN1  | 
 External battery  | 
 J8  | 
| 
 Floppy drive interface  | 
 CN2  | 
 External memory card  | 
 SL1  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Switch  | 
 Position  | |
| 
 »  | 
 256KB - 512KB memory override disabled  | 
 SW1/1  | 
 Off  | 
| 
 256KB - 512KB memory override enabled  | 
 SW1/1  | 
 On  | |
| 
 »  | 
 512KB - 640KB memory override disabled  | 
 SW1/2  | 
 Off  | 
| 
 512KB - 640KB memory override enabled  | 
 SW1/2  | 
 On  | |
| 
 »  | 
 Security enabled  | 
 SW1/3  | 
 Off  | 
| 
 Security disabled  | 
 SW1/3  | 
 On  | |
| 
 »  | 
 Factory configured - do not alter  | 
 SW1/4  | 
 Off  | 
| 
 DRAM CONFIGURATION (EXTERNAL CARD)  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 2MB  | 
 (8) 256K x 9  | 
 NONE  | 
| 
 4MB  | 
 (8) 256K x 9  | 
 (8) 256K x 9  | 
| 
 8MB  | 
 (8) 1M x 9  | 
 NONE  | 
| 
 10MB  | 
 (8) 1M x 9  | 
 (8) 256K x 9  | 
| 
 16MB  | 
 (8) 1M x 9  | 
 (8) 1M x 9  | 
| 
 32MB  | 
 (8) 4M x 9  | 
 NONE  | 
| 
 34MB  | 
 (8) 4M x 9  | 
 (8) 256K x 9  | 
| 
 40MB  | 
 (8) 4M x 9  | 
 (8) 1M x 9  | 
| 
 64MB  | 
 (8) 4M x 9  | 
 (8) 4M x 9  | 
| 
 Note: Board is factory installed with either 4MB or 8MB. The location of the memory is unidentified. If memory card is installed, the on board memory is disabled.  | ||