what I mean is what is added by a power supply capable of keeping the PC "healthy" by having more durable and long-lasting components? Is there any particular specific or characteristic that it must have regarding this? In my case I don't care that it has a high failure rate, I care that it makes high components (like CPU and motherboard) last as long as possible. i mean it's okay that in 2/3/4/10 years the power supply breaks, I change it, better this way, but I would like to have a Tagore alime that gives me more safety and longevity on the other more expensive main hardware