System powering down unexpectedly.
System powering down unexpectedly.
It took about 15 minutes. I connected the other strong PSU and after roughly fifteen minutes the PC turned off by itself. Based on what you mentioned, the motherboard seems nearly dead and is leaking.
I believe the issue lies in the power section of the motherboard. After adjusting some voltage settings and lowering the CPU frequency, it hasn't powered off despite running for about two hours.