Hi John!
I don’t really understand the question but I will try my best to answer it anyway.
Onboard Audiocard-ASIO4All
The build in soundcard in the computer is fine to use for preview stuff like listen on YouTube etc.
You can still use as your main audio card (“low budget”) with Cubase but its not recommenced. The audiocard need to use a driver standard that’s called “ASIO”. You can fake any onboard computer soundcard as a ASIO driver with help of
ASIO4all. Its free!
The problem is that both the sound-quality is not as good but the most important the “latency”----> the time it takes to interact with you in “real-time”, are often very bad. So if you try example to play on software synth it can take 1-3sec before you hear the key you just play. You can’t record any “live” vocal either, you will hear your voice 1-3sec after you sung it like a echo delay etc…
http://www.asio4all.com/
Why buy a real professional audio-card?
Its better to buy a specific professional sound-card if you going to use Cubase or other DAWs. It always come with a specific ASIO driver too that has lower latency (“no real-time delay”). The quality of the sound your hear is much higher even if it digital. You hook your monitor-speaker direct to your soundcard outputs too. So its a guarantee what you hear is “what you get” and no bad surprises later when listen on other places example your friends house or the car.
Another positive aspect is that you can record example vocal or guitar in higher quality, and it sounds much better.
The latency “the echo delay” are often compensated to “zero latency” during recording, so no more “1.3sec echo” anymore. You can now also play on software synths too without any problem.
You can still use the onboard sound card but not in Cubase, even if you buy a professional soundcard. You use the onboard audio-card for playing back audio from YouTube and other audio previewing of other sort in the computer etc…
I would recommend also you work with audio at least in 48kHz 32bit floating in Cubase 7 working with music.
I hope it help!
Best Regards
Freddie