ADLINK PXI-3950 - Manual (Page 41)

I/O Connectors and Pin Assignments 27
PXI-3950
User’s Manual
2.4.1 Clear CMOS (JP9)
If you encounter an abnormal condition that causes PXI-3950
to halt or fail to boot, clear the CMOS and restore the controller
BIOS to its default settings. To clear the CMOS, locate the JP9
jumper on the board and short pin#2 and pin#3. After you have
cleared the COMS, restore the jumper by returning to normal
mode (short pin#1 and pin#2).
Figure 2-16: JP9 (Clear CMOS) Settings