madmatt30 :
Im seeing nothing wrong with that build whatsoever .
The corsair vengeance is a great quality unit & is absolutely adequate for an rx 580
Id add another 120 or 140mm fan to the meshify c though if possible in budget.
I don't agree in this case. Initially, perhaps, but that's debatable. Rogue leader isn't the only member here who has recently found that his high end 550w unit that WAS previously adequate for his RX 580, now is not ~ a year later. I don't think the PSU is of sufficient quality or capacity. If a better unit can be budgeted, with about 100-200w higher capacity, I would do that, for several reasons.
One, the aforementioned increase in maximum power draw with these cards, or really most AMD cards. Historically, this is a premise that has been seen time and again.
Secondly, the unit is not one of Corsair's better units, and I'm pretty sure it's pre-2017 design, making it even less lovable. I guess I'd need the exact model number to verify that.
Third, even if it IS sufficient, it's barely so. We like to see units ~+40% capacity over probable full system draw to ensure it operates in a window where lower ripple, noise and voltage regulation issues are probable. Also, to try and keep noise levels to a minimum. If your system pulls 500w and you're using a 550w unit, chances are very good that you'll be running at max fan speeds most of the time you are in a demand situation.
Also, on those Corsair units, pretty much all of the 550, 650, 750w CX models, every review I've seen has noted the very aggressive fan profiles used on them in order to keep the thermals down within the preferred tolerance. IIRC they do not do terribly well at higher temps, with dramatically increased ripple, noise and regulation issues. Kept within the envelope, they do much better, but even so, not fantastic compared to a lot of other units most of which are not much more expensive.
There is no point in skimping on this component if it is not absolutely necessary, and probably not then.