SoepaMarv

I also had this problem, the only thing that worked for me is reinstalling the whole computer

I had the same problem but I've found a solution that works for me. I just unplug the wall adaptor when I shut the system down. When I start up I leave the wall adaptor out till I hear the Windows sound. I know it sounds a bit weird but I've never had the sound problem when I did this.

I just put a dvd box under my laptop so the fan can breath a bit better

Too bad you cant downgrade your bios

yes I want to put one in too but i'm not happy with the price yet.