PC Freezes with Looping Sound

Another note is that when I installed the PSU but before the Wipe, I checked out the HWMonitor App again just out of curiosity. Instead of being .10-.15 under the regular voltages, the voltages were .10 above, and COMPLETELY stable.

Assuming voltages created your problem, well, the voltage monitor did not report accurate numbers. Did not report the problem exists. Another reason why one uses a multimeter. To make it useful, calibrate a monitor with the meter. Then monitor threshold levels can be set to actually report a voltage problem.

Defective hardware is often apparent in voltages even months or a year before any system crash results. That is what a monitor is supposed to avert. But it cannot if you do not first calibrate the monitor.