2 graphics cards and gaming.

Ryeong

New Member
I have 2 graphics cards in my computer both are nvidia Geforce 7600's and a LP NF4 series motherboard. The motherboard has the nForce 4 chipset. what I'm wondering is if having 2 graphics cards is just like having a dual core processor where they just share the load or will they let me play games with better graphics than I could with just one of them?

There won't be any significant increase in visuality alone.. But, it does increase FPS A LOT!.. This will offer you the ability to increase the video settings in games which again will lead to better graphics for you.

1. you gain more fps
2. ability to increase graphics in games
3. more AA/AF
etc..

PS: You won't get 100% FPS increase.. maybe more like 70% or 80% (depending on game and drivers)... The amount of FPS increase when adding more than two cards is decreasing. I wouldn't recommend using more than two-way Sli.
 

87dtna

Active Member
Yes 7600gs's are SLI capable.

Do you have an SLI bridge on the cards? If it's recognizing both cards in device manager, and you have the latest drivers, there's no reason why SLI should not be showing up unless you don't have an SLI bridge hooked up on the cards.

See mine-

8800gtsSLI.jpg
 

87dtna

Active Member
Any bridge should work, unless it has a broken trace wire inside of it.

Can you get a screenshot of your Nvidia control panel? This really makes no sense, especially if you have both cards showing up in the device manager.
 

87dtna

Active Member
Uh, ok I only have one more thing to try then. Go back to the device manager and open the display adapters tab again that shows the two cards. Right click on one at a time and update the drivers using the internet. Do it on both and just see if that works somehow. If that doesn't, I'm pretty much out of thoughts here LOL.
 

Kerdon

New Member
Well I was looking through the help file and it says that I need a PCI Express chipset and dual x16 connectors. When I was looking at the info about each card, one had pci express x16 and the other had x2. But now, I just went into the system info again, and the nvidia control panel is only registering 1 card even though my device manager registers 2. But when I was in the device manager, I noticed that my pci memory controller and sm bus controller didn't have drivers so I'm trying to get drivers for those and see.

Edit: I installed the drivers and still nothing. The only thing I can think of is that one is x2 and the other is x16.
 
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87dtna

Active Member
That should have no real affect, and definitely wouldn't make it not be able to SLI. A 7600gs wouldn't be bottlenecked at 2x. Lots of lower end boards only do 16x/4x crossfire (ati cards' SLI). But I have to admit I've never seen 2x.

Download GPUz, and tell me what it says about the second card-

http://www.techpowerup.com/downloads/1837/TechPowerUp_GPU-Z_v0.4.4.html

Down at the bottom left you choose which card. Obviously there should be two. About in the middle on the right side is the Bus Interface. That will show whether it truly is running at 2x or not.
 

87dtna

Active Member
After some more research, turns out your board does not officially support SLI. And it is suppose to run at 16x/2x.

You can modify it to run SLI though.
 

Kerdon

New Member
After some more research, turns out your board does not officially support SLI. And it is suppose to run at 16x/2x.

You can modify it to run SLI though.

How?

That should have no real affect, and definitely wouldn't make it not be able to SLI. A 7600gs wouldn't be bottlenecked at 2x. Lots of lower end boards only do 16x/4x crossfire (ati cards' SLI). But I have to admit I've never seen 2x.

Download GPUz, and tell me what it says about the second card-

http://www.techpowerup.com/downloads/1837/TechPowerUp_GPU-Z_v0.4.4.html

Down at the bottom left you choose which card. Obviously there should be two. About in the middle on the right side is the Bus Interface. That will show whether it truly is running at 2x or not.
Yeah, one says PCI-E x16@x2.
 
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87dtna

Active Member
Do you have the instructions manual? I readsomewhere that you need to move some jumpers on the board and it will run 8x/8x instead of 16x/2x.

Still working on researching the SLI mod, hard to find.
 

87dtna

Active Member
Got it-

http://www.anandtech.com/show/1590/2


You have to remove the fan/heatsink on the chipset on your board and put some kind of conductive material to jump the two pins. I've heard of some people getting away with using a number 2 pencil and rubbing it in between the two pins but that seems kinda sketchy at best. It has worked for some, but I've look into a more permanent solution as pencil lead can wear away anyway.
 

Kerdon

New Member
Got it-

http://www.anandtech.com/show/1590/2


You have to remove the fan/heatsink on the chipset on your board and put some kind of conductive material to jump the two pins. I've heard of some people getting away with using a number 2 pencil and rubbing it in between the two pins but that seems kinda sketchy at best. It has worked for some, but I've look into a more permanent solution as pencil lead can wear away anyway.

If I mess up, will it fry my motherboard?

Nevermind. I looked at the thing and there's so much room that I'll be fine.

Edit: Thank you so very much for spending all this time helping me too.
 
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87dtna

Active Member
Don't forget to get some new thermal paste to put back on the chipset there for the heatsink. Clean the original off with a dry paper towel, both the chipset and the heatsink. Then just put a small rice size grain (if that) drop on the little raised square pad (which is what gets hot).

No problem man, it was bugging me why it wasn't working LOL. Just don't forget to read in the manual how to properly set the jumpers for SLI so it runs at the correct 8x/8x.
 

Kerdon

New Member
Don't forget to get some new thermal paste to put back on the chipset there for the heatsink. Clean the original off with a dry paper towel, both the chipset and the heatsink. Then just put a small rice size grain (if that) drop on the little raised square pad (which is what gets hot).

No problem man, it was bugging me why it wasn't working LOL. Just don't forget to read in the manual how to properly set the jumpers for SLI so it runs at the correct 8x/8x.

Will do!
 
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