Reverting updated bios to original

Things that I have seen that causes this are.
1. Power supply. I can't seem to find reviews on your power supply.
SP/L 550 watt Dual fan
2. A partially shorted power or reset button on the tower.
3. On my Asus board it was the Bios.
4. The cooling fan on the cpu cooler is not working.
____________
The best way to test a power supply is replace it with a quality power supply.
If your bios worked before they should work now. If they were not the best bios 2 different repair shops should of caught it.
The cooling fan is easy to check. Open the case and watch it.
Their again 2 compute shops should of caught that.
The power and reset buttons happens very seldom.
If it was my computer I would install another power supply.
My first choices are Corsair and Seasonic Modular.

Is the problem that you are not connected to the Internet? Are you sure you installed the LAN driver? If you did and the problem is with the Windows system files. Click the start button, type cmd in the search box, on the cmd entry that comes up, right click it and select run as administrator, in the window that opens copy/paste sfc /scannow and press enter. If you type it in, notice the space between sfc and /. It is a system file checker and will check and attempt to repair any corrupted or missing system files. If it finds files and says it can't fix them, reboot and run it again. Keep running and rebooting until it says no integrity violations were found.