650 System Board

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Jumpers                Description Settings
P5* On Board Video
1,2   Enable
No Pins Disable
P6 * On Board Video
1,2  Enable
No Pins Disable
P7 Microprocessor Select
1,2  Nonsocketed Enabled
2,3  Nonsocketed Disabled
No header    Socketed
P8 Speed Select    
1,2   33 MHz Processor Bus
2,3   25 MHz Processor Bus
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)