Mainboard User’s Manual
12
Setting Jumper Switches
Jumpers are sets of pins which can be connected together with
jumper caps. The jumper caps change the way the mainboard
operates by changing the electronic circuits on the mainboard. If a
jumper cap connects two pins, we say the pins are SHORT. If a
jumper cap is removed from two pins, the pins are OPEN.
Jumper JP1: Clear CMOS Memory
This jumper can clear the contents of the CMOS memory. You
may need to clear the CMOS memory if the settings in the Setup
Utility are incorrect and prevent your mainboard from operating.
To clear the CMOS memory, disconnect all the power cables from
the mainboard and then move the jumper cap into the CLEAR
setting for a few seconds.
Function
Jumper Setting
Clear CMOS Memory Short Pins 1-2
Normal Operation
Short Pins 2-3
Jumper J30: LAN LED Indicator
This jumper connected with a LAN device needs a LED indicator.
Device
Pins
Link LED
1, +2
ACT LED
+3, 4
Note: The plus sign (+) indicates a pin must be connected to a
positive voltage.
1
JP1
J30
1
Summary of Contents for M810D Series
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