Sound from onboard and soundcard?

[keiron99]

My motherboard has onboard sound, but I also have a sound card plugged
in too. Try as I might, I can't find a setting that enables me to use
both at the same time. I've been into the BIOS to ensure it's enabled,
but right clicking on the speaker icon which takes me into Playback
Devices, only allows you to select one output as a default, so I can
only switch between the two (which wouldn't be so bad, as long as
there was a quick and easy way to do it).

Is there either:
- a way to enable both at the same time, or
- a quick and easy way to switch between the two?

Thanks

 

[keiron99]

Just out of curiosity, why do you need both ?

I want one to run to the monitor (with built in speakers) and one to
my hi-fi amp.