Hey all. So I basically have this computer: https://support.hp.com/za-en/document/c03298983
It's a HP Pavilion HPE h9. I got it all the way back in 2012-ish, and it's definitely starting to show its age. For some reason the message "S12-Rear Chassis fan not detected" keeps popping up at startup, even though the rear chassis fan seems to work perfectly fine. Unplugging and re-plugging it into the motherboard doesn't fix the error message.
Recently the computer has been getting overly hot and the fan has been REALLY cranking up whenever I play games (something it didn't used to do), and I'm trying to figure out what the problem is. It's even shut off a couple times without warning, I assume due to heat. Is there a way to tell whether it's a problem with the cooling system or the fan without actually going in and replacing things one-by-one? Any known issues with this model?