athena sosa depends on this “and then a noise will happen “ which could be a bad fan or a bad hard drive etc. Can you somehow describe that noise. It may be time to open up your computer and take a good look at things like the fan, CPU thermal paste etc. Use these guides [[Topic:Acer Aspire One 751h-1948]] to start working on it. Let us know what you find. I’d start with the HDD and go from there.