J-BOND COMPUTER SYSTEMS CORPORATION
486-33/25/20E
| 
 Processor  | 
 80486SX/80487SX/80486DX/80486DX2/P24T  | 
| 
 Processor Speed  | 
 20/25/33/50(internal)/66(internal)MHz  | 
| 
 Chip Set  | 
 OPTI  | 
| 
 Video Chip Set  | 
 None  | 
| 
 Maximum Onboard Memory  | 
 32MB  | 
| 
 Maximum Video Memory  | 
 None  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 AMI/Award  | 
| 
 Dimensions  | 
 254mm x 218mm  | 
| 
 I/O Options  | 
 None  | 
| 
 NPU Options  | 
 4167  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 External battery  | 
 J1  | 
 Turbo switch  | 
 J5  | 
| 
 Reset switch  | 
 J2  | 
 Speaker  | 
 J6  | 
| 
 Turbo LED  | 
 J3  | 
 Power LED & keylock  | 
 J7  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| 
 Turbo enabled (selectable with turbo switch on case)  | 
 X4  | 
 Pins 1 & 2 closed  | |
| 
 Turbo enabled (selectable through keyboard CTRL, ALT +/-  | 
 X4  | 
 Pins 2 & 3 closed  | |
| 
 Turbo enabled (continuous turbo mode)  | 
 X4  | 
 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  | 
| 
 5MB  | 
 (4) 256K x 9  | 
 (4) 1M x 9  | 
| 
 8MB  | 
 (4) 1M x 9  | 
 (4) 1M x 9  | 
| 
 16MB  | 
 (4) 4M x 9  | 
 None  | 
| 
 32MB  | 
 (4) 4M x 9  | 
 (4) 4M x 9  | 
| 
 CPU TYPE SELECTION  | |||||
| 
 Type  | 
 W1  | 
 W2  | 
 W3  | 
 W4  | 
 W5  | 
| 
 80486SX  | 
 Open  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 80487SX  | 
 Open  | 
 Closed  | 
 Closed  | 
 Open  | 
 Closed  | 
| 
 80486DX  | 
 Closed  | 
 Open  | 
 Closed  | 
 Open  | 
 Closed  | 
| 
 80486DX2  | 
 Closed  | 
 Open  | 
 Closed  | 
 Open  | 
 Closed  | 
| 
 P24T  | 
 Open  | 
 Closed  | 
 Closed  | 
 Open  | 
 Closed  |