633 System Board
 
   
| Jumpers | Description | Settings | 
| P5* | On Board Video | 
 | 
| P6 * | On Board Video | 
 | 
| P7 | Microprocessor Select | 
 | 
| P8 | Speed Select | 
 | 
| P9 | Processor Configuration | 1,2  486DX/DX2, 486SX
      (Nonsocketed),
                    487SX/OD,
      and 486SX2 2,3 486SX (Socketed) | 
| P10 | Processor Configuration | 1,2  486SX (Non-socketed) and
      486S (Socketed) 2,3 486DX/DX2, 487SX/OD, and 486SX2 | 
| P11 | Processor Configuration | 1,2  486DX/DX2 and 486SX2 2,3 487SX/OD 3,4 486SX (Nonsocketed) and 486SX(Socketed) | 
| P13 | Configuration Registers of Super I/O Chip | 1,2  26Eh/26Fh No Jumper 398h/399h | 
| P14 | CMOS | 1,2 (remove jumper for 10 second to clear) |