So in my older computer, I upgraded the PSU to a TX650 that is probably close to 4 years old now (maybe even older). I recently bought a Dell XPS 8700 that came with a Radeon 7570. I don't game too much anymore so I'm probably keeping the 7570 the computer came with. My question is, should I swap my Dell PSU for the Corsair for reliability or am I fine to keep the PSU the 8700 came with? Basically, is a 4+ year old Corsair PSU better than a new stock Dell PSU? Thanks!