KINGSTON TECHNOLOGY CORPORATION
486/33PD3, 25PS3, 33PD3-P70, 33PS3-P70 PROCESSOR UPGRADE BOARD
| 
 Processor  | 
 80486SX/80486DX  | 
| 
 Processor Speed  | 
 25/33MHz  | 
| 
 Chip Set  | 
 NONE (uses PS/2 main board chipset)  | 
| 
 Max. Onboard DRAM  | 
 NONE  | 
| 
 Cache  | 
 NONE  | 
| 
 BIOS  | 
 NONE (uses PS/2 main board bios)  | 
| 
 Dimensions  | 
 63.5mm x 50.8mm  | 
| 
 I/O Options  | 
 NONE  | 
| 
 NPU Options  | 
 NONE  | 
| 
 CONNECTIONS  | |
| 
 Purpose  | 
 Location  | 
| 
 Processor upgrade to system board connector  | 
 P1  | 
| 
 SYSTEM TYPE CONFIGURATION  | |||||
| 
 Type  | 
 Speed  | 
 SW1/1  | 
 SW1/2  | 
 SW1/3  | 
 SW1/4  | 
| 
 IBM PS/2 M70 (full size board)  | 
 16MHz  | 
 off  | 
 on  | 
 on  | 
 on  | 
| 
 IBM PS/2 M70 (half size board)  | 
 16MHz  | 
 on  | 
 on  | 
 off  | 
 on  | 
| 
 IBM PS/2 M70 (half size board)  | 
 20MHz  | 
 off  | 
 on  | 
 on  | 
 on  | 
| 
 IBM PS/2 M70 (full size board)  | 
 25MHz  | 
 on  | 
 on  | 
 on  | 
 on  | 
| 
 IBM PS/2 M80  | 
 16MHz  | 
 off  | 
 off  | 
 on  | 
 on  | 
| 
 IBM PS/2 M80  | 
 20MHz  | 
 off  | 
 off  | 
 on  | 
 on  | 
| 
 IBM PS/2 M80  | 
 25MHz  | 
 on  | 
 off  | 
 on  | 
 on  | 
| 
 IBM PS/2 P70  | 
 20MHz  | 
 off  | 
 on  | 
 on  | 
 on  | 
| 
 Note:If an IBM XGA adapter is installed and a display problem occurs, change switch 4 to the off position.  | |||||