07-30-2015, 05:22 PM
(07-30-2015, 02:57 PM)soxrok2212 Wrote:(07-30-2015, 03:09 AM)Flomac Wrote: 5x GTX 970 and a 1kw PSU is not a very clever idea for many reasons. The PSU will always operates at its limit. That's bad for a) life endurance, b) noise, c) power costs and d) stability. A PSU works effectiv in the range auf roughly 25-75% use. Under and above that it loses a few percentages power effiecency. If you let your system run a lot like 24/7 even 1% difference shows off later on your power bill. It depends on the PSU, a gold or better is taken for granted.
Stability is even more important. If a PSU runs at its limits nasty effects can occur and for the worst it might shut down some of your GPUs forever by an internal shortcut.
Buy a 1500W instead.
But what if I'm only running 3?
3x 150W with 100W other think all is 550-600W then 1KW PSU is ok for that without problem.