GTX 275 in SLI power requirements?

leopardforest

leopardforest

New Member
I am going to get a GTX 275 and I would like to run SLI in a couple months. I plan on getting a Corsair 850, would that be enough power?

the rest:
i7
room for 3 hdd
 
leopardforest said:
I cant really speak from experience, but that just seems like overkill (referring to that link) compared to what people are using?
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Well I thought Nvidia would know better than you or I what to use.
Like I said, you could probably get by with the 850. It's a great psu.

Consider a Single GTX 275 requires:
Minimum of a 550 Watt power supply
(Minimum recommended power supply with +12 Volt current rating of 40 Amps.)
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I can't find an SLI "Minimum Requirement" for that card, which is what you're looking for,
so I linked the "Recommended Specs".

Running SLI is overkill in my opinion. I think it's unnecessary.
You won't get twice the frame rate, so why spend twice the money?

You can game just fine with a single card, but if you're going for benchmarks then knock yourself out.
 
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kennebell347 said:
is there any single card that can completely max crysis out? i mean completely max it out?
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??? wrong thread dude, but the GTX 295 can somewhat do it.

And 850w will be more than enough to run those 2 cars in sli. You would have no problems what so ever.
 
dsolash said:
the GTX 295 can somewhat do it.
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Somewhat? I can play Crysis maxxed out on my GTX 260 at 30-40 fps,
so I'm sure the 295 can more than "somewhat" handle the task.

Crysis Recommended System Requirement:
GPU - NVIDIA GeForce 8800 GTS/640 or similar
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Also, the GTX 295 is not considered a single card, it has two gpu's.
 
Bodaggit23 said:
Somewhat? I can play Crysis maxxed out on my GTX 260 at 30-40 fps,
so I'm sure the 295 can more than "somewhat" handle the task.

Crysis Recommended System Requirement:


Also, the GTX 295 is not considered a single card, it has two gpu's.
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But it is a single card so :p. Its a single card with dual Gpus. And i cant max out crysis even with my 4870x2 so thats why i stated that the GTX 295 can somewhat do it.
 
dsolash said:
??? wrong thread dude, but the GTX 295 can somewhat do it.

And 850w will be more than enough to run those 2 cars in sli. You would have no problems what so ever.
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Er note quite,,,, :( I just bought a second GTX275 hooked them up in sli on a 850w supply, All Was going great while i gamed of the hard disk , But then i put in Grid (which required the DVD rom)

Needless to say i am now in need of a new damn psu 60 quid down the toilet it just damn killed it id had those cards in there about 30 mins :( when they say you need 40amps on the rail they mean it trust me
 
mimic58 said:
Er note quite,,,, :( I just bought a second GTX275 hooked them up in sli on a 850w supply, All Was going great while i gamed of the hard disk , But then i put in Grid (which required the DVD rom)

Needless to say i am now in need of a new damn psu 60 quid down the toilet it just damn killed it id had those cards in there about 30 mins :( when they say you need 40amps on the rail they mean it trust me
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dude that sucks. what brand of power supply was it?
 
ganzey said:
dude that sucks. what brand of power supply was it?
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it was a W-win power EA4G-850 it had 20 amps per 12v rail 4 rails so i used two rails per card with the molex links their should of been 40 amps per card available but it didnt leave enough for the cpu , hdd memory etc

so far the only psu iv been able to find that looks like it can do it is this one
http://www.antec.com/Believe_it/product1.php?id=MTc1Nw==
But i dont know if the pci express power leads are off seperate 12v rails if i were to connect both cards to any one rail , its gunner kill it , What id really like is a psu with a single 12v rail raited at 100amps but i cant seem to find one anyware :confused:
 
ouch, it was an offbrand so what can you expect.. but a single rail is better than one. a corsair 850 would be enough, since it has 70 amps on the +12v
 
you reacon 70 is enough ?? the manual says 40 amps , and isnt clear if its per card or for the system aswell, I want to be able to run raid in the future and also have enough for the 965 quad
 
ganzey said:
ouch, it was an offbrand so what can you expect.. but a single rail is better than one. a corsair 850 would be enough, since it has 70 amps on the +12v
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you think 70 is enough to handle the 4-6 drive raid + 965 quad ?? , The 275 manual states 40amps per card , and isnt really clear if its just for the card or for everything? :confused:
 
mimic58 said:
you think 70 is enough to handle the 4-6 drive raid + 965 quad ?? , The 275 manual states 40amps per card , and isnt really clear if its just for the card or for everything? :confused:
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that means 40 amps is reccomended for the entire system, including the card. the card itself only uses around 15-22 amps. so a 70 would be enough. but only a good brand, like corsair, pc power and cooling, seasonic, silverstone, ocz.
 
ganzey said:
oh yea, thats more than enough. and a dang good price too
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Iv just found this http://www.hardwarecanucks.com/foru...0-nvidia-geforce-gtx-275-896mb-review-20.html

They measured the consumption using an inline meter , for some reason the 275 pulls more juice than most

Watts / volts = amps 345 watts Devided by 12 = 28.8 amps! :eek:

What the hell was i thinking buying two of these I had no idea what i was letting myself in for
so now im needing dam near 60 amps just to run the cards :eek:

what about the Cpu how much will a crosshair 2 , With an overclocked 965 quad core pull???
 
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