Yes I do have a multimeter.
Could the 2.77v mean a possibly bad power supply? I dont know if that would cause my random freezing issue though, would it?
Sweet. Try checking the voltages yourself, while the machine is under load, just to make sure that HWMonitor is accurate.
That said, in my experience - low voltages usually indicate a failing PS, and a bad PS can most definitely cause all sorts of weirdness and flakiness, up to and including random freezes. Some of the most baffling things I have ever seen or heard about were ultimately attributed to a bad PS.