I am sorry, I was not specific enough.
The PC was bought last year. This year, 1 month ago, a new GPU, PSU, 2TB ED and case were bought. Before, it had a 400W PSU HEXA 400+, an MSI GTX 650 2G GDDR5, 128bit...but as the 400W could not handle the load of the new R7, making weird noises, i bought...