IBM 6646 System Board Jumpers Connectors, System Board Jumper Settings, Jumper/Settings Function

System Board Jumpers and

Connectors

NOTE: The whitened pin of a jumper represents pin 1.

System Board Jumper Settings

Jumper/Settings	Function
JP11, JP4 - Reserved	AMP Select:--Reserved
1-3, 2-4
3-5, 4-6
JP7 Boot Block CMOS	Clear function
Clear
1-2	*Default
2-3	Clear CMOS/Boot Block
	Recovery

Parts/Test Point Locations 105