Shutdown while Gaming

[Shibblet]

My computer will randomly shutdown while I am in the middle of a game.

This makes me think that it may be overheating... but I really can't be sure.

I don't even know where to begin to troubleshoot this.

What can I do to figure out the problem?

[Tadaen_Sylvermane]

Usual suspects. Make sure fans work. Clean out dust. First things to do

[currentshaft]

What computer? What game? Most importantly, what temperatures?

[Doug S]

What computer? What game? Most importantly, what temperatures?

Additionally, what processor make and model?

[halogen2]

My computer will randomly shutdown while I am in the middle of a game.

Does it actually shutdown (like if you had initiated shutdown from your desktop environment), or abruptly power off?

it may be overheating... but I really can't be sure.

Look up maximum temperatures for your CPU and GPU, then use psensor and keep an eye on it while gaming to see what temperatures are actually reached?

[deadflowr]

Review the logs of the end of the last boot with

journalctl -b -1 -n 100

that'll give you the last 100 lines of the last logging for the last boot session.
You can change the boot session by increasing or decreasing the -1 option.
Putting nothing means current boot, -1 is the last boot, -2 is the boot before that, and so on.
Hope it helps.

[Shibblet]

Usual suspects. Make sure fans work. Clean out dust. First things to do

That was the first thing that I did.

What computer? What game? Most importantly, what temperatures?

It's a Minisforum HX90G. I was playing Remnant: From the Ashes
Not sure what temperatures.

Additionally, what processor make and model?

It's a Ryzen 5800HX, with AMD 6600M GPU
It's a mini computer... so for all intents and purposes, it's a laptop with no screen.

Does it actually shutdown (like if you had initiated shutdown from your desktop environment), or abruptly power off?

It actually shuts down. It does not abruptly power-off.

Thank you all! This gives me a great starting point.

I will check the psensor information soon.

[Shibblet]

Psensor shows EDGE = at max 55C, but Junction at Max = 114C.

sensor (terminal) shows
edge: +35.0°C (crit = +100.0°C, hyst = -273.1°C)
(emerg = +105.0°C)
junction: +36.0°C (crit = +110.0°C, hyst = -273.1°C)
(emerg = +115.0°C)

So, Edge is the Overall GPU Temp, and Juction is probably the "hot-spot."

Not sure how to keep that hot-spot temperature from hitting 115C, which is "Emergency" and probably initiates a shut-down.

[him610]

My computer will randomly shutdown while I am in the middle of a game.

Not sure how to keep that hot-spot temperature from hitting 115C, which is "Emergency" and probably initiates a shut-down.

Suggest you consider finding another game to play.

[currentshaft]

Suggest you consider finding another game to play.

This, or build a computer with a better cooling design. This one is clearly not optimized for performance. It's just basic thermodynamics.