Richard, apologies if this is not the info you need but I am not a technical person.
Mobo = motherboard ? Micro ATX L7VMM
NIC = network internet connection ? reading directly from Control Panel/Network Connections,
Local Area Connection.......Network cable unplugged......Realtek RTL8139/810xFamilyFastEthernet.
The only info I can find on the modem is as I stated in my last post. It came with the pc and is internal.