Frequent freezing/crashing from CPU

Cross posting this on Tom's Hardware forum.

Self built PC

**OS:** Windows 10 build 19042 (reformatted on 12/08/2020) **CPU:** Intel Core i5-10600K **Cooler:** Noctua NH-L9I **Mobo:** ASUS TUF Gaming Z490-Plus (WiFi 6) **HDD:** 2x Samsung 960 EVO Plus nVME in RAID 0 **RAM:** 32 GB (2 x 16GB) Corsair Vengeance RGB Pro **GPU:** PowerColor AMD Radeon RX 5700 XT Red Devil **PSU:** EVGA SuperNOVA 750W

Since building this PC I've had rather frequent freezing and crashing while playing games. Any game that is somewhat intensive, after an hour or two of playing, would freeze causing the last maybe 100 ms of audio to go on loop and become completely unresponsive, requiring me to press the power button for 5 seconds for a hard shut down.

I've never had the computer freeze this way doing typical desktop activities. I was convinced this issue was related to my video card due to gaming.

There is no overclocking on any component and XMP is currently disabled.

I have attempted to try and isolate the problem and ran Memtest86 for about 15 minutes with no issues. I ran the Unigine Superposition GPU benchmark 3 times without issues (although, this wasn't nearly as long as a typical gaming session would be). I've ran Crystal DiskMark on my hard drives for speed tests. I installed and ran PowerMAX running the CPU AVX test and I've cause it to consistently crash after about 40 seconds as it hits the 30 - 40% mark.

[Here is a photo](https://i.imgur.com/v27gyPp.jpg) of what Core Temp last displayed, while my screen was frozen and it crashed.

I'm not sure if this is a temperature thing that could be resolved with better cooling, a general issue with this specific CPU, or instability with this motherboard. All parts are out of the typical 30 day warranty to return, but within manufacturers warranty.