Integrated gpu overheating issues

[TinyTony1]

So I have been playing games for several months on my laptop. Some where graphic heavy but it always handled it just fine. I even catch myself pushing the graphics to test the limits sometimes and I had some great surprises so far. 

Unfortunately, something went wrong lately. I don't really know if it is linked to the HP Bios upgrade (that I did in late July) but the dates seems to match.

Anyway, problem is : even though I have selected my Nvidia 1650 as the default graphic card to use AND has established a profile on a specific game to make sure it's using the right gpu, on THIS specific game, when I keep track of it (first via task manager, then with afterburner that I used only for tracking puposes only) it uses both GPUs. 

Task Manager even tells me it uses the integrated one (but when triple checking, my 1650 is being used normally).

Even with the lowest quality settings, I keep getting the shutdown issue. I can't last more than 10min in game without crashing which is very frustrating because I've played this game for almost 2 month now, graphics on "high". 

The GTX is doing just fine but the AMD temperature never gets under 75 until it eventually ( and by eventually I mean always) reaches the 90s+ and then computer go zzzzz.

So far here is what I did : 

Checked all my components with the Hp assistants (fans included) - nothing detected

Cleaned up all the inside of the laptop - not a single dust particle left

Updated all the graphic drivers. And non graphic drivers as well, because why not. - everything is up to date

Tried the "miracle solution" of excluding the steam folder from the Windows Defender scan list 

And I'm considering bying an external fan but as time goes on, I'm pretty sure the issue isn't actually the cooling, but the simple fact that the AMD is manifesting himself without anyone asking for his opinion. 

At one point I was thinking about some cryptofarming malware or something like that but I sniped my entire C folder, both manually and by using like 4 antivirus / antimalware. -no funny business detected 

2 weird things I noticed :

• It only happened with this game and this game only. Well... it did it one time on another one but this time blame it on me, I wasn't using the right gpu so yes, but no.
• Thx to afterburner, I noticed the AMD (Vega 8 btw) was only eating 200mHz, not more or less, when the GTX is chilling around 1800. How surprising is that. How can it reach such temperatures when it barely gets fed...? (I genuinely would like to know more about it, I little bit of knowledge doesn't hurt anyone)
• Bonus weird thing : when I see that the GTX is almost everytime at 99% usage, the AMD often drops to 0. then it goes up to like 40, then 0, then 90...etc. 

At the end of the day, I don't know what causes it and how to stop it. I just want to finish the game with the little bit of summer I have left. 

Useless information (or not ? Idk) : I only have Chrome opened with 4 tabs right now and the AMD gpu is running at between 0 and 4% with a temperature between 45 and 55. The GTX is chilling at 46, no more, no less. 

Thanks in advance for any kind of help dear strangers. 

[TinyTony1]

Okayyy so I’m happy and unhappy at the same time because i now know what’s up and how to correct it. 

Thanks to me not sleeping and searching in the forum I found a good hundred of angry people with the exact same issue. How funny !  ( Feels so good not to be alone !  )
And it has nothing to do with my lap : it was the bios update. So now I will revert it and if works, will tag this as solved. 

Thx for coming to my Ted Talk