and so far I have received 1 error
Well, sadly, any error, even just 1, is not good and indicates bad RAM.
With 16GB, I am assuming you have 2 x 8GB (or 4 x 4GB though likely the former). I recommend you remove 1/2 your RAM and test again and hopefully, through a process of elimination, be able to isolate the problem to a single stick. Just understand that no software based tester is conclusive. RAM can test good and then fail when installed, or when paired with other RAM. That said, if errors are found, the RAM is bad.
Be sure to take the necessary ESD precautions when handling the RAM. Unplug the computer from the wall, touch bare metal of the case interior BEFORE reaching inside the case or touching the RAM to discharge any static in your body. And NEVER EVER touch the RAM's electrical contracts.
While inside your case, make sure it is clean of heat trapping dust and fans spin freely.
Last week I had a 3tb seagaye barracuda die on me, no idea if connected, but thought I should mention it.
It may or may not be related but whenever I see multiple unexplained potential hardware problems, I always suspect power.
While not conclusive, you might check your voltages with a PSU Tester
. These are good but not conclusive because they don't provide a variety of realistic loads. And they don't test for excessive ripple
and other anomalies that affect computer stability. This is done by a qualified technician using an oscilloscope or power supply analyzer - sophisticated (and expensive) electronic test equipment requiring special training to operate, and a basic knowledge of electronics theory to understand the results. Therefore, conclusively
testing a power supply is done in properly equipped electronics repair facilities.
You can also check your voltages with HWiNFO64
to make sure they are within the allowed ±5% tolerances. But this too is not conclusive.
So for most users, the best test is to swap in a known good PSU. Also, I recommend testing your wall outlets with a AC Outlet Tester
to ensure your outlet is properly wired and grounded