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3 Way SLI 470GTX with aftermarket Coolers.

post #1 of 12
Thread Starter 
Hello, i am looking for some help or advice on my current situation. I apologize if someone has asked this question, but i have been searching for a coupld days and can't find exactly what i need.

I have 3 way SLI 470 GTX, i modified 2 of them with aftermarket coolers. I will be putting a 3rd cooler on my last card. My problem is the damned SLI bridge.

I have seen alot of pictures and diagrams saying 3 way SLI requires an SLI link between card 1 and 3. However my problem is the single bridges are not long enough. Even the 12cm(4.2") one, because to connect 1st finger on 1st card to last card 2nd finger is diagonal.

I used after market coolers no designed for 470gtx, but i modded them to fit. its just a matter of distance between cards now specifically the 1st and 3rd card.

Does anyone know of an SLI bridge longer than the 12cm one, or a link or site i can look at modifying and extending a single bridge beyond 5 inches.

Any help would be great!
post #2 of 12


?
post #3 of 12
Doesn't look like I would spend the money for tri sli, with minimal performance upgrade imho. Save the money

http://www.guru3d.com/article/geforc...-sli-review/22
post #4 of 12
post #5 of 12
Thread Starter 
Quote:
Originally Posted by CtrlAltElite View Post
Doesn't look like I would spend the money for tri sli, with minimal performance upgrade imho. Save the money

http://www.guru3d.com/article/geforc...-sli-review/22
I don't want to sound rude, but did you even read my thread?

I already have 3 video cards, i'm not buying any....

Please read before just posting anything.
post #6 of 12
Thread Starter 
Okay, guys.....


I have 2 of the 3 way PCB bridge. I have flexible bridges...

The question is simple...

SLI single Bridge over 12cm or a way to modify one. Unless someone has another good idea.

I have been reading numerous forums where people do this exact thing. they post the same reply. Please read.

A PCB (non-flexible bridge) is out of the question.

It's going to have to be flexible and i have to reach from top card to bottom card over 5-7inches.
post #7 of 12
There have been a few similar threads recently. IIRC SLI bridges over 12cm were not found so you may be out of luck.
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post #8 of 12
The 760 has 7 slots, right? The top one is a 1xPCI-Ex.

In order to do tri-sli, you would logically use slots 2, 4, and 6. The board comes with a tri-SLI connector to accommodate this config.

You could in theory also use slots 2, 4, and 7, but this requires that the case you use would have at least 8 expansion slots. However the CM690 in your sig doesn't have 8 slots, so it's hard to see how you'd be doing such a config unless you've modded your case.

And even so, I'm almost positive that the 760 also came with a 2nd tri-SLI bridge that allows you to use slots 2, 4, and 7 in SLI. If it didn't come with one, I know I've seen one. In fact, I believe the picture Pangelveit posted is possibly just such a connector. It looks like there's a larger gap between the left (bottom) and center jack than there is between the center and right (top) jack?

Anyways, even if that picture isn't right connector, I know there is such a thing, and I'm pretty sure that finding one of those is your best option.

Edit: if you look at the picture of the included accessories here:
http://www.newegg.com/Product/Produc...82E16813188048

You'll see that there should've been two 'hard' tri-sli connectors included. One is for a 2-4-6 slot config, and one is for a 2-4-7 slot config.
Edited by brettjv - 3/13/11 at 11:29am
    
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post #9 of 12
Thread Starter 
Quote:
Originally Posted by Draygonn View Post
There have been a few similar threads recently. IIRC SLI bridges over 12cm were not found so you may be out of luck.
That's what i am guessing, I think my only other option which i am looking into is
PCI-E flexible extenders. I can make a custom build with those and maybe accommodate the lack of SLI bridges. Its a shame because thats gonna cost more, but at least for future builds i can toy around with it.

Its really a bad scenario, Nvidia has made a mess of 3 way and 4 way SLI.
I know thats like a very very small part of the market. It just seems stupid they couldnt follow crossfire's simplistic design on bridges. One card to the next, and so on. Did Nvidia really expect 3 way and 4 way SLI to work just dandy with 90+C load temps on the cards. They can't breathe and if you want to space them out, forget about using the SLI bridges which is the sole purpose of the build.

No aftermarket coolers are one slotted, except maybe Spitfire, but then its limited due to case space.

My whole customization is at a hold due to a stupid SLI bridge. It's really aggravating.

choices i am faced with right now....

1- PCI-E extenders and a really heavy custom mod to my case.

2- Go watercooling on this box, which i really REALLY do not wan to touch due to price and hassle.

3- give up and go 2 way, sell my 3rd card and suffer less performance.

4- find a way to modify some flexible sli cables...

5- suggestion unforseen possibly on here.
post #10 of 12
Thread Starter 
Quote:
Originally Posted by brettjv View Post
The 760 has 7 slots, right? The top one is a 1xPCI-Ex.

In order to do tri-sli, you would logically use slots 2, 4, and 6. The board comes with a tri-SLI connector to accommodate this config.

You could in theory also use slots 2, 4, and 7, but this requires that the case you use would have at least 8 expansion slots. However the CM690 in your sig doesn't have 8 slots, so it's hard to see how you'd be doing such a config unless you've modded your case.

And even so, I'm almost positive that the 760 also came with a 2nd tri-SLI bridge that allows you to use slots 2, 4, and 7 in SLI. If it didn't come with one, I know I've seen one. In fact, I believe the picture Pangelveit posted is possibly just such a connector. It looks like there's a larger gap between the left (bottom) and center jack than there is between the center and right (top) jack?

Again, even if that picture isn't right connector, I know there is such a thing, and I'm pretty sure that finding one of those is your best option.

Edit: if you look at the picture of the included accessories here:
http://www.newegg.com/Product/Produc...82E16813188048

You'll see that there should've been two 'hard' tri-sli connectors included. One is for a 2-4-6 slot config, and one is for a 2-4-7 slot config.
My apologies, i am using a custom modded Lain LI case on this build. It only has 7 slots as well. However i am ready to do some more customization to accommodate the required space.

My problem is the PCB SLI 3 way, and 3way with pyhsx SLI Bridges are rigid.
MY after market coolers are the ULTRA CARBON x4. They are not designed for the 470GTX, i had to mod it to make it work. The heat pipes on the cooler are in the way of the PCB 3 way connector (RIGID).

Rigid connectors are out of the question all together.

I have looked at multiple configs online where people use Single flexible bridges to connect 3 way SLI:

It requires ONE of the SLI flexible bridges to connect to CARD1 finger 1 to CARD 3 finger 2.

Sorry i also meant to say, i am using a small 4 inch PCI-E flexible extender for the 3rd card.
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