MX310HD User’s Manual
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1.10.6 Clear CMOS Jumper: JP3
There is a CMOS RAM onboard that has the power supplied from an external battery to
maintain the registry settings of system configuration.
For normal state (default), the jumper is set on pin location 1 and 2.
To clear the CMOS, disconnect all power connections to MX310HD first, then set the JP3
jumper to pin location 2 and 3 for
at least 30 seconds while the system is disconnected
from the power
.
1. You can clear CMOS by shorting pin 2-3 for at least 30 seconds (while the system is
OFF), then place the jumper back to pin 1-2 for normal operation.
2. Avoid clearing the CMOS while the system is ON; this may damage the mainboard.
