Originally Posted by GameBoy
Keeping below 80% of it rated capacity is just some made up rule. Why 80%?
Lifespan is also a non-issue. It's not like a good PSU will die after a few years of high loads.
agreed. and most real life loads like games dont hold at one load level for very long, it changes. so it might hit 95% or 100% load on the PSU for a bit, but then it will drop. a quality PSU should be able to handle this for years.
gameboy has been speaking the truth
on that anandtech bench running furmark they used 724w at the wall
724*.80=579w DC current
so even running furmark, the system is only consuming 579w.
if you are folding or running intense games, the power draw will still not be as extreme as Furmak. a GOOD quality 600-650w PSU
could handle this load and even some overclocking.
the HX650w would be a good PSU for 470SLI and a bit of OCing.
if you want to buy new, then i, again, agree with gameboy and get a quality 700-750w PSU. that will leave you some head room for OCing and peace of mind.Edited by IntelConvert - 3/1/11 at 5:58am