I would like to know if 4 12v 20a rails can handle a FX 8350, R9 380 4gb, a 120gb ssd and a 1tb HDD. This is the psu btw
I believe it'll be fine. This isn't really an issue with rails but more with the overall wattage. Each rail should provide enough watts to handle it.
I have one of these though... I suspect it may be dying or something.
Why not get the 650W version and save some cash? It'll be more than enough
Because I would like to buy another 380 soon.
According to the BeQuiet PSU-calc, you should be fine with 670 Watts (with two 380s).
Crossfire ain't never worth it meng.
I was expecting to rag on the PSU calc, but its actually pretty good.