Question PC black screens and needs manual restart while gaming. Comes back with BIOS "CPU is overheating" message everytime.

[doctorrichford1]

The CPU cooler is installed fine and has thermal paste on it, temperatures never go above 91. PSU is brand new and the motherboard is a refurbished model I got last week.

Everytime I try to play a game within 5 minutes I lose all audio, my monitor flickers and then goes black. When this happens I have to hold the power button on my case and turn it back on, my Bios always comes up with the message "CPU is overheating" even though the temperatures are never high enough to cause concern. Is this a problem with the CPU itself could it be something else?

• CPU: AMD Ryzen 5 5600X 3.7 GHz 6-Core Processor ($158.99 @ Amazon)
• Motherboard: MSI MAG B550 TOMAHAWK MAX WIFI ATX AM4 Motherboard ($169.99 @ Amazon)
• Memory: Corsair Vengeance LPX 32 GB (2 x 16 GB) DDR4-3600 CL18 Memory ($160.99 @ B&H)
• Video Card: EVGA FTW3 ULTRA GAMING GeForce RTX 3080 10GB 10 GB Video Card ($899.99 @ Amazon)
• Power Supply: MSI MPG A850GF 850 W 80+ Gold Certified Fully Modular ATX Power Supply ($237.49 @ Amazon)

 

[CountMike]

The CPU cooler is installed fine and has thermal paste on it, temperatures never go above 91. PSU is brand new and the motherboard is a refurbished model I got last week.

Everytime I try to play a game within 5 minutes I lose all audio, my monitor flickers and then goes black. When this happens I have to hold the power button on my case and turn it back on, my Bios always comes up with the message "CPU is overheating" even though the temperatures are never high enough to cause concern. Is this a problem with the CPU itself could it be something else?

• CPU: AMD Ryzen 5 5600X 3.7 GHz 6-Core Processor ($158.99 @ Amazon)
• Motherboard: MSI MAG B550 TOMAHAWK MAX WIFI ATX AM4 Motherboard ($169.99 @ Amazon)
• Memory: Corsair Vengeance LPX 32 GB (2 x 16 GB) DDR4-3600 CL18 Memory ($160.99 @ B&H)
• Video Card: EVGA FTW3 ULTRA GAMING GeForce RTX 3080 10GB 10 GB Video Card ($899.99 @ Amazon)
• Power Supply: MSI MPG A850GF 850 W 80+ Gold Certified Fully Modular ATX Power Supply ($237.49 @ Amazon)

Latest BIOS version ?

 

[MEMOFLEX]

The CPU cooler is installed fine and has thermal paste on it, temperatures never go above 91. PSU is brand new and the motherboard is a refurbished model I got last week.

Everytime I try to play a game within 5 minutes I lose all audio, my monitor flickers and then goes black. When this happens I have to hold the power button on my case and turn it back on, my Bios always comes up with the message "CPU is overheating" even though the temperatures are never high enough to cause concern. Is this a problem with the CPU itself could it be something else?

• CPU: AMD Ryzen 5 5600X 3.7 GHz 6-Core Processor ($158.99 @ Amazon)
• Motherboard: MSI MAG B550 TOMAHAWK MAX WIFI ATX AM4 Motherboard ($169.99 @ Amazon)
• Memory: Corsair Vengeance LPX 32 GB (2 x 16 GB) DDR4-3600 CL18 Memory ($160.99 @ B&H)
• Video Card: EVGA FTW3 ULTRA GAMING GeForce RTX 3080 10GB 10 GB Video Card ($899.99 @ Amazon)
• Power Supply: MSI MPG A850GF 850 W 80+ Gold Certified Fully Modular ATX Power Supply ($237.49 @ Amazon)

What cpu cooler are you using? 91 degrees on a 5000 series ryzen seems very hot to me. I would not be comfortable running it that hot personally despite it technically being within spec. If this was during a cinebench or Prime run I could possibly understand but during gaming it seems excessively high.

What temperature does the system idle at?

Is this all games or a specific game?

 

[Misgar]

Looks similar to a 5600X build I did for someone with a Tomahawk mobo, but I ditched the stock cooler and installed a more capable AMD Wraith Prism (3800X boxed cooler).

temperatures never go above 91.

I run my 7950X up into the low nineties Centigrade for 10 to 12 hours during video transcodes and it survives under a Noctua NH-D15. No PBO.
https://www.cpu-world.com/CPUs/Zen/AMD-Ryzen 5 5600X.html

The 5600X has a nominal TDP of 65W, but the PPT rating is 88W.
https://www.techpowerup.com/cpu-specs/ryzen-5-5600x.c2365

Check to see if your cooler is bolted down properly with the correct amount of thermal paste (not too little and certainly not so much it oozes out over the edges).

If you're still using the bog standard AMD cooler that came with the 5600X, consider something bigger.

You might try a Thermalright SI-100. I've used these in low profile HTPC builds.
https://wccftech.com/review/the-king-of-top-down-cooling-thermalright-si-100-sff-review/

A dual tower Peerless Assassin 120 would be overkill, but they're good on more powerful CPUs.
https://www.tomshardware.com/reviews/thermalright-peerless-assassin-120-se