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Stop recommending 650W-850W power supplies for single card systems - Page 9  

post #81 of 286
[QUOTE=MahiMahiMahi;13881998]
PSUs are investments like nice cases, good fans, bay devices, water-cooling loops, and keyboards because the technology basically stays the same throughout the years. 1000 watts is overkill but saying a 750 watt is overkill is a little near-sighted.


Agreed
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post #82 of 286
Quote:
Originally Posted by Phaedrus2129 View Post
Kind of. Better to ask on here.
Thanks. I was hoping it would give a decent estimate on my sig rig. On crossfiring 6950s it gave a recommended wattage of 600w that's why I went with 650W
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Yep, Aeris died
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post #83 of 286
yeah i ran a pair of 5770s a 920@ 4.2 and i still couldnt max the 650w i was on back then.


Now though is a different story. i wouldnt dare run my current setup on less then the 850w i have in there. I idle at about 305w and full load is 850w (i know thats at the wall but my power supply is ~90% efficient so thats approx 765w draw)

ive seen a couple suggestions thats say you could run 3 6970s on 850w, pretty sure my psu would die if i put a third on there.
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post #84 of 286
Quote:
Originally Posted by Blindsay View Post
yeah i ran a pair of 5770s a 920@ 4.2 and i still couldnt max the 650w i was on back then.


Now though is a different story. i wouldnt dare run my current setup on less then the 850w i have in there. I idle at about 305w and full load is 850w (i know thats at the wall but my power supply is ~90% efficient so thats approx 765w draw)

ive seen a couple suggestions thats say you could run 3 6970s on 850w, pretty sure my psu would die if i put a third on there.
From the wall and on a non-oc rig. 6970CF will draw about 601 watts, so it can handle a three 6970.
Edited by dixson01974 - 6/15/11 at 10:48am
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post #85 of 286
Knock it off, you're making people waste time with such kind of thread.
post #86 of 286
Quote:
Originally Posted by zyamak_zealot View Post
Longevity wise... Is it not better for a PSU to work at < 50% load, than > 50% ?
Not really. And operating at a small fraction of it's capacity also results in horrible efficiency.
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post #87 of 286
Quote:
Originally Posted by mikepahl318 View Post
Phaedrus its time to stop dedicating YOUR LIFE to telling people they have too many jiggawatts....

after all... this is OCN and we do it big.

EDIT: I don't get why you don't mention quality???

"then recommending a 650W or more is wasting their money."

My 700 watt StealthxStream could not handle my 6950 + 1090t overclocked...

FYI
There was something wrong with it then. The SxS 700w isn't an amazing PSU, but it's adequate for a system that barely tops 350w DC.

Quote:
Originally Posted by sp4wners View Post
Sorry but I would never get branded 650W PSU for 6950 in CF. Minimum for me is 700-750W. Thank You.
650w would actually be more than enough for two 6950's. If you refuse to believe that, you're just being paranoid.
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post #88 of 286
Better to have too much than not enough!

However, I plan on keeping the 520hx when I upgrade to an i5 2500k / hd6950 setup.
    
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post #89 of 286
I feel like the difference in price is easily justifiable... Most people, even if their mobo is single slot, (if they reside on these forums) are eventually going to want to beef up their components... i.e. watercooling, new processors, overclocking... I just figure that the 650-850w range PSU's aren't terribly more expensive than their lower wattage counterparts and that by suggesting them you're really helping people out in the long run and providing them with headroom that they're going to need.

TL;DR

Stop ranting about redundancy. I prefer to have headroom, as do most of the people on OCN... If you are using OCN, generally speaking, you want headroom. It's really not a waste, more of an investment


Thanks,

InF3Rnus
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post #90 of 286
I love this thread. I hate arguing with people stating that their PSU will be more than enough.
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