Check The Jumper Settings - ECS P6BAT-B Manual

Check the Jumper Settings

Check all the mainboard jumpers to ensure that the board is configured
correctly.
JP2
JP7
JP1
A
B
JP1A: Audio Enable/disable Jumper
Use this 2-pin jumper to enable or disable the audio system integrated
on this mainboard. You have to disable the audio system if you plan on
using an alternate audio system on an add-in card.
JP1A
Function
1
Enable audio
2
Disable audio
JP1B: Modem Enable/disable Jumper
Use this 2-pin jumper to enable or disable the modem integrated on this
mainboard. You have to disable the modem if you plan on using an
alternate modem.
Function
Enable modem
Disable modem
Note: When jumper JP1A is set to Disable Audio (short pins 1-2)
the integrated modem is also disabled, even if the jumper JP1B is
at the Enable Modem setting.
14
Jumper Cap
Open pins 1-2
Short pins 1-2
Jumper Cap
Open pins 1-2
Short pins 1-2
JP4
JP6
JP5
JP1B
1
2