Hello Luttii,
I understand you're having issues with your fan on the Touchsmart, is that correct? I will try to help you with this issue.
You have already tried a few steps that I would recommend. As of right now there still isn’t a BIOS updated available to upgrade to. Do you know if the computer is still covered by warranty if you are unsure have a look at this link to confirm. There is a chance that a service repair may need to be set up.
Please respond back at your earliest convenience.
Thanks