I appreciate you sending me the Speccy via a PM, but you need to post this in your topic. Any information regarding this topic should be posted in it so everyone can read it.
The Speccy shows the generic model of this computer's motherboard, but I can't find the specific motherboard with out more information. This is a HP Pavilion 17 series motherboard, but I need the specific series information. For instance HP Paviliion 17-F002NA.
You can watch a video of a 17 series computer's motherboard being removed here. Removing the motherboard from this computer is not something I would suggest to a novice. There are over a half dozen ribbon cables which will need to be disconnected. The connectors for these are extremely fragile. If you break one you will need to replace the motherboard as these connectors are not sold separately.
I would suggest taking this computer to a repair shop with a good reputation and have them diagnose the problem and tell you what it would cost to have it repaired.
One thing I did notice in the Speccy was the temperature of the CPU. The motherboard was at 42c, the graphics was at 41c, the CPU was at 90c.
To be sure this isn't a fluke of Speccy please download and run Open Hardware Monitor and post the temperatures in your topic.