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About GTX 285

post #1 of 13
Thread Starter 
Hi guys, this is my first thread here on OCN.
First of all, my question might sound dumb or stupid, well, I am
I'm just a freshmen about PC , especially GPU tech

My question is about 4 way SLI using GTX 285 (Quad SLI)
Now, I know that it happen, because I've seen it here
But, as soon as I'm trying to search more, there is so little information I can get about them. The ONLY card that I know able to do this 4way SLI is just eVGA GTX 285 Classified series.
Is it true? no other GTX 285 by other brand could perform this Quad SLI?
Because, come on, there is NO WAY I could find (and purchase) those "classified" cards since it will take (perhaps) my whole life just to find them.

My reason to asked this is because GTX 285's price is very affordable at his moment yet they do still have some serious potential beneath their chips. And before I die I might want to try build "affordable" 4way SLI rig in my life LOL
Please, good people out there who might know something that I don't, enlighten this stupid noob
Thanks in advance
post #2 of 13
if you can sli two with different brands you should be able to quad sli with different brands i believe.
    
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post #3 of 13
You can 4-way with any 285 you want, as long as your motherboard support it.

That said, for gaming, you won't see a high if any performance increase in games. Most likely some games you will see a small drop vs 3-way, as support for quad-sli isn't as good (same with CFX 4 cards).
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post #4 of 13
I believe all 285s support 4 way SLI, but you need to find a board that supports it. Not all of them do. What board do you have?
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post #5 of 13
Thread Starter 
Quote:
Originally Posted by cee View Post
if you can sli two with different brands you should be able to quad sli with different brands i believe.
I hope that's true, since it just ridiculous to find 4 of those cards

Quote:
Originally Posted by Defoler View Post
You can 4-way with any 285 you want, as long as your motherboard support it.

That said, for gaming, you won't see a high if any performance increase in games. Most likely some games you will see a small drop vs 3-way, as support for quad-sli isn't as good (same with CFX 4 cards).
Notice this, but I still want to try, just for some benching & gaming, and if compared to 3 way is not that much differences then I just might sell of the card

Quote:
Originally Posted by SgtHop View Post
I believe all 285s support 4 way SLI, but you need to find a board that supports it. Not all of them do. What board do you have?
That's what first thing came up to my mind then after doing some researches I found these

Here a statement that I can quote :
Quote:
"EVGA is proud to announce the world’s first 4-way SLI capable setup, the EVGA GTX 285 Classified and X58 Classified 4-Way SLI, but the innovative features do not stop there. Everything on the GTX 285 Classified is designed for the extreme enthusiast, from the 8 Phase Digital PWM to the X-Cool Switch and Dedicated Voltage readpoints! These features and more allow you to do what matters; get the most from your hardware."
That's why I presume that only Classified GTX 285 by EVGA is the only brand that can perform 4way SLI But I will be please if someone out there had already try 4way SLI GTX 285 with some other brands. Anyone?



Anyway, I'm right now at the middle of process on buying Rampage 3 Formula + Asus Xpander board, so I can perform 4way SLI with each pcie slot running on 16x. This also be my major reason to try out the 4way SLI. Although do understand since I'm not related to Bill Gates, then I have to find cheaper way instead getting 4x GTX 480 or 4x GTX 580. I'm WAY not that rich
Edited by ecko no yaro - 1/31/11 at 1:15am
post #6 of 13
Don't bother with Tri-SLI or especially Quad-SLI, it's not worth it
post #7 of 13
Thread Starter 
Quote:
Originally Posted by Nowyn View Post
Don't bother with Tri-SLI or especially Quad-SLI, it's not worth it
so I've heard from a lot of people, but then again, this is just my curiosity, I know it get the cats killed but.. oh well, at least it's not gonna spend some serious cash and I always can sell them when I finally realize that it is not worth it.
But thanks for your concern, really appreciate that
post #8 of 13
i believe that only EVGA classified and a few other select ultra high-end mobo supports 4 card 4 way SLI
also for the 200 series, only EVGA GTX 285 Classified supports 4 way SLI.
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post #9 of 13
Are you sure the R3F and Xpander works together?

Also the requirments for the 285 classified and the switch, it was a way to trick the system that instead of 4x285s, you actually had two 295s, which helped to enable the 4-gpu sli support.

The Quad-SLI with single cards was fixed when the 4xx series came out as far as I remember. I don't remember on which drivers.
3-Way was possible from day one (except you can not do surround on 3-way 2xx series), but quad was enabled later as far as I remember.
Edited by Defoler - 1/31/11 at 2:20am
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post #10 of 13
Quote:
Originally Posted by Defoler View Post
Are you sure the R3F and Xpander works together?

Also the requirments for the 285 classified and the switch, it was a way to trick the system that instead of 4x285s, you actually had two 295s, which helped to enable the 4-gpu sli support.

The Quad-SLI with single cards was fixed when the 4xx series came out as far as I remember. I don't remember on which drivers.
3-Way was possible from day one (except you can do surround on 3-way 2xx series), but quad was enabled later as far as I remember.
This. The classys had a special driver (dunno if it was part of the GPU driver, or a mobo related one) that tricked the nVidia drivers into thinking it was quad SLI GTX295, instead of GTX285 cards.
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