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#11
That CPU was introduced 9 years ago.
I'm wondering if your power supply is also 9 years old?
I'd pay attention to the voltages on the 3.3, 5.0, and 12 volt lines.......and I'd be wary if the voltage at any moment is more than 10 percent off those stated values. That is......2.8, 4.3, or 10 volts would furrow my brow. Hope the observed values are within 10 percent at all times, with minimal variation.
Screen shot below from my HWInfo screen; voltages in the right column.