First I want to apologize if this is not in the correct place. I am not sure which information is needed, so I may supply more information than necessary. I bought a LX835-D3203 Intel I3/6GB/1TB/23" AIO from Best Buy in October and I have noticed that it seems to rev up sometimes. If that makes any sense.. It seems to rev up when I am trying to do more than just one thing at a time. I know this may be a dumb question, but is it normal?