Abit ZM6 User Manual page 21

Installing the Motherboard
Normal Operation (Default)
Figure 2-8. CCMOS1 jumper setting
Before you clear the CMOS, you have to turn the power off first (including the +5V
standby power). Otherwise, your system may work abnormally or malfunction.
(9) PN1 and PN2 Headers
User's Manual
Discharge CMOS
Note
PN1 and PN2 are for switches and indicators
for the chassis's front panel, there are
several functions that come from these two
headers. You have to watch the pin position
and the orientation, or you may cause
system malfunctions. Figure 2-9 shows you
the PN1 and PN2 functions of the pins.
Figure 2-9. The definition of PN1 and
PN2 pins
2-11