I recently buyed a new Mainboard (Asrock ALiveXFire) and got some trouble with the network adapter. After switching my Windows 7 x64 in energey saving mode and returning from it, my network adapter couldn't be found.
After some googling I found out, that apparently my network adapter has been put in a deep sleep mode and didn't reactivate. Their solution was to switch the PC off, take out the RAM and the CMOS battery for some time. After that, the adapter should be powered on again, but that didn't happen for me. I waited several hours before turning my PC on again, but that didn't help.
Formatting and reinstalling didn't help either.
The network adapter is not found in the hardware manager and reinstalling the drivers didn't help. I have the newest BIOS installed on the mainboard.
I literally don't know what to try next. I'm thinking of returning my board, but I would like to avoid the hassle.