Cabling / Cards :: Network Adapter Does Not Show Up Under Device Manager?

I'm typing this on my Droid X so pardon the typos. I don't really know where to start or what direction to take so I'll list my major problem, then all the facts/info/and actions I've taken to attempt to fix the problem.Problem - I can not connect to the internet and no network adapter shows up under device manager I have an Asus 5671 running windows 7. I purchased the unit about a year ago.It's outside of the manufacturers warranty. Power went out about a week and a half ago and I believe this has something to do with the cause of the problem. I have repeatedly spoken to ASUS about this downloaded the network drivers from their site. When I install them I receive no error message saying they were installed incorrectly or failed to install, but my network adapter still does not show up. I have recovered my computer to factory settings and the problem has not gone away.

While attempting to recover my computer to factory settings, I found out it didn't already come with a recovery disk set up, so I followed the prompts to make a recovery disk (after all this trouble was already happening), so I wonder if creating a recovery disk was pointless since the network issue was already present. I have my router hard lined to my computer, and it's wireless on. The wireless works with my PS3. My computer itself is not wireless. Asus first said the problem was 100% digital, now say it's a hardware problem. I was told I will have to buy a new motherboard to fix the issue.