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SLI question for those with a 939 MB

Navy Chief

Navy Chief

Senior Member
My BFG 7800 started having problems, so I contacted BFG. They sent me a 8800 GT OC 512. I'm getting another one (used from Ebay), and plan to use them in a SLI configuration.

A friend of mine who helped me set up my pc originally, said the 939 MB will handle SLI easily enough, but that I will have to go into setup every time I boot in order for it to do so.

I don't have a problem with that so much, because I only plan to use the SLI cfg when I am flight simming.

Additionally, I plan to finally get around to loading Vista, so I can take advantage of DX10.

I know some of you folks have a 939 MB, and wondered if you have an SLI setup, and what I've said is fact?

And any tips?

Thanks.

NC
 
I used an EVGA mobo and an AMD 64X2 FSX W/939 socket in SLI mode with great results. You'll need an SLI bridge board connector for the graphic cards, and the Nvidia Control Panel program installed to setup and enable SLI. Unfortunately the power supply went out on mine zapping a few things, and I'm now in the midst of a repair.
 
An edit for above. The phrase should've read "AMD 64X2 FX W/939 socket" not FSX. Duh! Where was my mind? :redf:
 
Then you're in business, Chief. After you install the Nvidia Control Panel, on the LH Panel of it's GUI there's a task that allows you to "Set SLI Configuration" to turn SLI on and another task"Manage 3D Settings" that allows you to select alternate painting by the graphic cards.
 
Just a warning: Fs2004 can't take advantage of SLI because it's too old and does not have the code support (FSX should, but i'm 100% sure since i dont have FSX). In fact, you might actually experience worse performance in fs2004 because of the SLI/CPU bottleneck. If you have two powerful vcards, make sure you have a beefy CPU to process all that raw power. If not, a bottneck situation will appear, and you will get stutters and unstable fps.

SLI is designed for all the new generation games such as Far Cry 2, etc. (so if you play a lot of these games, you'l notice a HUGE improvement....usually a 30-40% increase in FPS).

I have several duel-core systems w/ SLI, but yeah, it doesn't make much of a difference in FS2004. A single beefy v-card is all you need...that 8800 should allow u to run fs2004 competely maxed out. FS2004 is more CPU intensive than GPU (espeically when you have lots of AI, sceneries, etc).

ps. You can do a simple test by disabling one of the cards, and run fs2004. The FPS should be the same.

-feng
 
You're right, feng. For those who want to try running FS9 with both cores, you can go to Applications in the Task Manager with FS9 running and reset the affinity for the non load carrying core and see what happens. It's a PITA cuz you have to do it each time you run FS9.
 
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