I have no idea what the issue might be, but I noticed that the computer frequently rebooted at random. In stress testing, the temperatures reached 90, but the reboots only happened when there was a light load, when the temperatures were 60 to 65. People from the official forum had the exact same issue, and despite trying everything—including switching out motherboards, memory, and power supplies—the outcome remained the same. I've included the link here.
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