M583LMR Mainboard User’s Manual
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 JP3: Modem & Audio System Enable/disable
This jumper consists of two sets of 3-pin jumpers (pins 1,3,5 and
pins 2,4,6). Use pins 1,3,5 to enable or disable the onboard sound
system. Use pins 2,4,6 to enable or disable the onboard modem.
Function
Jumper Setting
Enable Onboard Audio
Short Pins 1-3
Disable Onboard Audio
Short Pins 3-5
Enable Onboard Modem
Short Pins 2-4
Disable Onboard Modem
Short Pins 4-6
Note:
If you use pins 1,3,5 to disable the onboard sound
system, the onboard Fax/Modem is also disabled, even if you
have set pins 2,4,6 the Enable Fax/Modem setting.
12
J
P3
2
1
JP5
1
JP700
1
JP4
1
