ZYTEX COMPUTERS, INC.
TB486
| 
 Processor  | 
 80486DX  | 
| 
 Processor Speed  | 
 33MHz  | 
| 
 Chip Set  | 
 ETEQ  | 
| 
 Max. Onboard DRAM  | 
 32MB  | 
| 
 Cache  | 
 64/256KB  | 
| 
 BIOS  | 
 AMI/MR  | 
| 
 Dimensions  | 
 330.2mm x 218.4mm  | 
| 
 I/O OPTIONS  | 
 32-bit external memory card slot  | 
| 
 NPU Options  | 
 4167  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Reset switch  | 
 J4  | 
 Power LED & Keylock  | 
 JP26  | 
| 
 External battery  | 
 JP2  | 
 Speaker  | 
 JP27  | 
| 
 32-bit external memory card  | 
 JP5  | 
 Turbo LED  | 
 T1  | 
| 
 Turbo switch  | 
 JP25  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| » | 
 Monitor type select monochrome  | 
 J4  | 
 Open  | 
| 
 Monitor type select color  | 
 J4  | 
 Closed  | |
| » | 
 Filter circuitry disabled  | 
 JP3  | 
 Closed  | 
| 
 Filter circuitry enabled  | 
 JP3  | 
 Open  | |
| » | 
 NPU read speed select 3 wait states  | 
 JP24  | 
 Open  | 
| 
 NPU read speed select 2 wait states  | 
 JP24  | 
 Closed  | |
| 
 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  | 
| 
 5MB  | 
 (4) 1M x 9  | 
 (4) 256K x 9  | 
| 
 8MB  | 
 (4) 1M x 9  | 
 (4) 1M x 9  | 
| 
 16MB  | 
 (4) 4M x 9  | 
 NONE  | 
| 
 17MB  | 
 (4) 4M x 9  | 
 (4) 256K x 9  | 
| 
 20MB  | 
 (4) 4M x 9  | 
 (4) 1M x 9  | 
| 
 32MB  | 
 (4) 4M x 9  | 
 (4) 4M x 9  | 
| 
 CACHE CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 TAG  | 
| 
 64KB  | 
 (8) 8K x 8  | 
 (2) 8K x 8  | 
| 
 256KB  | 
 (8) 32K x 8  | 
 (2) 8K x 8  | 
| 
 CACHE JUMPER CONFIGURATION  | |||||
| 
 Size  | 
 JP19  | 
 JP20  | 
 JP21  | 
 JP22  | 
 JP23  | 
| 
 64KB  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 Open  | 
 Open  | 
 Open  | 
| 
 256KB  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
 Closed  | 
 Closed  | 
 Closed  |