Hi Steve,ÿ
I never noticed you had a DacMagic 1 which doesn't have optical in.
Either way, I did a search on google for specs for your laptop and came across a review saying "The soundcard is a Soundmax Digital HD Audio but it does not feature any digital outputs, only headphones and microphone."
However, for the DacMagic 1 you require a BCN connector and I believe - don't quote me on this - you would need a Co-ax to BNC cable.ÿ
To set that up, you will need to purchase an USB > Coax adapter, then you can connect the Co-ax > BNC cable from the adapter to the DacMagic.
ÿHopefully someone who has a DacMagic 1 connected to their PC/Laptop will chime in, I have the DacMagic 2 so can't really help you any further...ÿ