I just discovered, in this post: https://forums.tomshardware.com/threads/psu-wattage-for-this-build.3657493/#post-22034218 , that there exist group regulated and unregulated PSUs, and i read that unregulated are better. To find out if a PSU is unregulated i need to look at the internals, but how can i look at the internals without owning PSU? So my question is, what are some good cheap unregulated PSUs? I need one with around 500W, what do you guys recommend?