It really could be. But then again, NVidia recommends a minimum system requirement of 500W. So Silverstone probably won't help me in any way. I'll gladly have you experts look at my system if you are in my neighborhood.Could be a fault in the power supply itself because I doubt having an extra HDD connected would be enough to thermal trip the computer... HDDs and SSDs really only use a couple watts/amps though.
Currently I basically "hot-swap" by unplugging one and plugging in the other. I just cannot go with three drives without a lot of crashing.
And yes, I know my PSU is not the 80+ Gold one, but rather the Silver one.