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Would my 850w cut the mustard? - Page 3

post #21 of 31
All three card together will consume about 566 watts. 160 for each 460 and 244 watts for the 580. So leaving about 202 watts for the rest of the rig.
EDIT
Yes he will be pushing his psu, but he should be fine.
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post #22 of 31
Quote:
Originally Posted by dixson01974 View Post
All three card together will consume about 566 watts. 160 for each 460 and 244 watts for the 580. So leaving about 202 watts for the rest of the rig.
EDIT
Yes he will be pushing his psu, but he should be fine.
if that is wall watts he wont be even be breaking 700W of real DC output....
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post #23 of 31
Quote:
Originally Posted by wumpus View Post
if that is wall watts he wont be even be breaking 700W of real DC output....
That is from Nvidia web site, so I don't know if that is off the wall or not.
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post #24 of 31
You may be good, but I would run all the video cards at stock for a bit and get a Kill-A-Watt to see the actual usage(or close to). Look around incase you may need 950W or more, since you will be using a 6 core/12 thread overclocked beast along with 3 overclocked video cards.
post #25 of 31
Thread Starter 
OK cheers.

My PSU only has 2x 6 pins and 2x 8 pins though so i'll have to get a new PSU just for that reason. I'll look at getting something around the 1kw area.
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post #26 of 31
You'll be fine man.
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post #27 of 31
460 SLI consumes between 30-60W more than a 580 at stock.





It is kind of close. These numbers are based off a mildly overclocked i7 920. It might be better to get a 950-1000W if you overclock everything.
post #28 of 31
Your current PSU will do you just fine.
   
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post #29 of 31
He doesn't have enough pci-express connectors though.
post #30 of 31
The Enhance-built Real Power Pro 850W is actually one of the very best PSU's that Coolermaster has ever put out (I know, I know), easily capable of over 900W continuous. I recall one reviewer at the time said that many makers would market this PSU as a 1KW unit (offhand I think it was Gabe).

Edit: Good, My memory still works::
Conclusions We were really impressed by this power supply. It could not only deliver 850 W at 50º C like the manufacturer says, but we could easily pull 1,000 W from it. Cooler Master could easily label this power supply as being a 1,000 W unit, but they decided to play it safe and label it as an 850 W unit, probably because efficiency drops below 80% when you pull 1,000 W.

The reason I know so much about it is because I used to rock o' those myself at one point, and the ONLY reason I sold it was because I had a Antec 900, which has horrible cable management, and I really wanted the cleanliness of modular.

I rocked two OC'd 295's on mine for a time, it handled it w/aplomb, the 12V circuit barely budged even under full gaming load.

Then again, I had what I think may have been a later revision of the unit, which I believe had 2x26A rails (on each of the two 8-pin plugs) and 18A for the other 4. So, if you have an older one that's actually 18A x 6, it might not be as strong as the one I had. Are you going by what's on the label, or just what you read as the specs online? You should def. check the label if you haven't.

I would bet that with the right combination of adapters on the 4 PCI-Ex cables, you could make it work no problem. I know for certain that each of the four PCI-Ex cables on that unit has it's own rail, so even with adapters I don't think you'll trip any OCP's on the 12V rails. The OCP on the entire unit ... maybe. But I bet not ... cause like I say, RPP 850W is BEAST for an 850W unit
Edited by brettjv - 6/17/11 at 10:47pm
    
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