Lenovo Thinkcentre m72z Sound Issue

[alameals]

Morning all

Just a general question really, We've just purchased a couple of lenovo thinkcentre m72z, I wasn't about when they was installed but with them being in a library the staff disabled the sound completely and since then staff have asked for sound to be used with headphones on the machines. The problem is I can't see a way of disabled the speakers and just having sound through the headphones. I can enable the sound driver but this lets sound come through the speakers when headphones are unplugged which staff then moan about, so trying to find a speaker disabled and earphones working situation. Anyone have any of these and in a similar situation as me?

Thanks

[difinity]

Just leave the headphones in ?

[alameals]

Just leave the headphones in ?

 

Headphones aren't left in the machines, it is just when someone bring the headphones to the machine otherwise otherwise the default is to just play through the speakers.

[difinity]

All of our computers here have headphones connected. Other than that you could disconnect the speaker connector internally.

[alameals]

All of our computers here have headphones connected. Other than that you could disconnect the speaker connector internally.

 

I was looking at this as an option , hoping there would be an alternative