550W power supply for 1070 and overclocked 7700k? IMO, this is madness. Just those two components under load can almost hit the ceiling. Just a little sudden jump in boost clocks, or inconsistency in power draw will shut off your system or drop you into BSOD.
It's important to remember - there is NO such thing as overkill when you talk power supplies. 700W PS and 550W PS will draw SAME amount of power from the wall - the exact amount your system needs. But it's never a good idea not to leave any extra room.
Not to mention more powerful power supplies are plainly more efficient too.
emphasized. This. That's really entirely too small for a load like that.
I've fixed a
lot of broken computers with a fried PS as the main culprit [that and stuffing them into ornamental desks] If the PS goes, it's just as likely to fry other chips on the way with weird fluctuations (I've seen
burnt memory slots).
As far as "future-proofing" *suppresses a giggle* a good PSU is one of the things that will travel with you from rig to rig, so it's a good investment. Probably 600w Bronze would see you through a few power-hungry updates (graphics card/CPU/more RAM)
*
Also will stick my oar in here regarding overclocking: with modern components, overclocking is really in the same vein as building roadsters or case-modding: it's a tinkerer thing. OC will
definitely put a strain on the component chips and... there's really not a lot of framerate improvement in most games. I choose OC parts for the reason that
Caramel Clown outlines: bursts and burps from the PSU. There's more overhead for that in OC parts, but having gone through all of that from a P1 to i7, I'd rather have longetivity in my system than a small framerate bump.
Of course, if you liquid-cool...
