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Discussion Starter #1
Hello everyone. I've currently got an EVGA GTX 260 Core 216 but I have a friend that wants to buy one, so I was wondering if it would make sense to sell it to him and buy two GeForce GTS 250 1GB cards to run in SLI.

My issue is that I've only got a 520w Corsair Modular PSU and I'm not sure that's enough to power two GTS 250's and my OC'd q9550. The PSU has 54 amps on the 12v Rail and according to EVGA the 250's only require 24 amps each, but I thought I would ask your opinions here before making any purchases.
 

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1) there's no way a 520W psu has 54A on the 12V rails. You can't just add up the individual rails to come up w/a total 12V amperage.
2) that *may* be enough PSU to actually get your system to run, but your psu is really going to be maxed out, to the point that it's running at max capacity whenever you're gaming. It may have stability problems, and may even lower your max overclock potential, on your cpu, gpu, or both.

Bottom-line, I wouldn't do it with less than 600W personally. Even if it would work, it's not the best idea.
 

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Should work fine, I've tried the same, but on a Corsair 550W.
The amperage is comparable.
 

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Crossfired 4850's uses 300watts and gts 250s in sli are closer to 400 watts. Its really pushing it with 520w, but it will boot and possibly crash while gaming
 

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you will be fine ...
don't worry about what some people in this thread are saying ... there's a lot of misinformation. PSU ar so underrated ...
I'm going to buy a GTX285 and a q9550 which I will clock at 4ghz and I am not worried at all ... not a bit.
Think about this ... GTS250 SLI is basically a 9800GX2 and you CAN run a GX of a corsair 520HX without a sweat ...
Good Luck!
 
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Quote:

Originally Posted by ned99 View Post
Thanks for the advice. Would 2 GTS 250's be a significant performance increase over 1 GTX 260 Core 216?

Quote:

Originally Posted by ned99 View Post
Okay I think i'm going to try it as it seems like it should be safe to do. However, would the dual GTS 250s be enough of a boost over a single GTX 260 Core 216 to justify spending another $180?

Yess it will be a boost over a single 260 I can't remeber off the top of my head what 2 x250 in sli compare to. But it should be good
 

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Quote:

Originally Posted by ned99 View Post
Okay I think i'm going to try it as it seems like it should be safe to do. However, would the dual GTS 250s be enough of a boost over a single GTX 260 Core 216 to justify spending another $180?
Depends on the game, for the most part, the dual gts 250's will be faster,but for 180 you can another GTX 260 so I'm very confused.
 

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Discussion Starter #18
The reason why I'm getting 2 GTS 250s instead of a second GTX 260 is that the GTS's only require 1 6 pin PCI-e connector each while the 260s need 2 each (and the PSU only has 2 6 pin PCI-e's). I also have a friend who is willing to buy my current 260 so I thought getting dual 250s might be a good idea for an upgrade that gets me to the top of my mobo and PSU ceilings.
 

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Quote:


Originally Posted by almighty15
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I once ran a AMD 5600+ X2 at 3.5Ghz with SLI 8800GTS with a 570watt PSU and it failed....get a bigger PSU imo


It really depends on the quality/amperage of PSU. A crappy 570w Apevia powersupply would never be able to do GTS 250 SLi.

You should be fine.
 
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