|Find the spec's for your motherboard, it should list the network interface giving you make and model. You can google the NIC manufacturer's website and look for drivers there.|
Worst comes to worst, if you have an open PCI slot, you could go to your local computer store and buy a PCI NIC and install it.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.