I just recently purchased this Dell to do Unreal Engine work, and I noticed that this laptop (although built really solid) overheats like crazy, I'm getting temps of 97C-99C! I even had it shut off on me once probably because it passed the 100C threshold! That's way too hot for a computer and of course because of that, it's throttling back really hard on my work. Why is this happening? Is this a design flaw with the G15? Is there anything that I can do without voiding the warranty? If there isn't, this thing is going right back to Best Buy ASAP. I don't want to undervolt or underclock, because that's counterintuitive to my line of work, I can't have my work throttled down since I do real-time work.
I have an older Alienware 18 that doesn't have any overheating issues at all, but it is much larger (and older, circa 2014), and I don't have any overheating issues with that, even though it has two GPUs and a desktop grade CPU in it. On a bad day it hits 75C.
Your Dell computer can overheat because of insufficient air flow due to dust or debris blocking the air vents, exhaust ports, or a clogged fan. An overheating computer can intermittently restart, shutdown, or experience performance issues. Eventually excessive heat can cause damage to the internal components.