Mahfuj911 :
(risk of damaging motherboard or other components is low)
Nobody can guarantee that. With 5 years old a possibility although i think it won't happen that fast. The only way to check is to try.
For psu's,
https://pcpartpicker.com/products/compare/FQ648d,XxvZxr,4Vzv6h,xVkD4D/
these are examples of series,a higher wattage psu wil do fine as well,but for the parts you have should these wattages do fine.