Widescreen Gaming Forum

OK... I think domino or quick-sand comes to mind now. After basically building a new PC with:

ASUS P5N-T Deluxe mother board
Intel Quad-Core2-6600
4GB Patriot DDR2 1066 Memory
(3) eVGA 8800GTX graphics cards with 3-Way SLI Bridge installed
(3) Acer AL2416W 24" widescreen monitors
1200 Watt Power Supply
Microsoft Windows Vista Ultimate 32Bit

I can't get the 3-Way SLI settings to be show in the nVidia control panel. I've tried a few different drivers but none seem to show the option to enable/manage SLI mode.

Any suggestions I'd appreciate.

You can't use SLI (dual or triple) with more than one monitor.

(unless you're using TH2Go, which you didn't mention)

Sorry about that... Yes I do have a TH2GO Digital Ed. I have only 1 DVI port from the 8800GTX installed in PCI-e slot-1 that's connected to TH2Go. But the driver within Vista is not showing any SLI setting options in the 3D settings area of the nVidia Control Panel.

It ended up being the driver version. Once I installed v169.25 the SLI option was avaliable in nVidia Control Panel. creX:Napster over on SLI Zone recommended this version and it's good.

Life is good!

it's a pity you already found a solution to your problem, otherwise i would have suggested to send me two of you GTXs'. :D :D just kidding.

could you do me a favor and do a few frametime benchmarks? i would really appreciate that.

.25 is the original Triple-SLi Driver.

Sure I'd be happy to do a frametime benchmark... give me a little bit but I’ll do it soon. Picked up Crysis and in graphic settings I clicked select based on system. It selected everything as “Very Highâ€

I want whatever he has been smoking^^ :lol:

Fraps (http://www.fraps.com/) is a freeware program that allows you do capture videos screenshots and frametimes.
you can download it here (http://www.fraps.com/download.php)
everything else can be set in the options and is probably described in the readme.

the issue with multi-GPU settings is that the average framerate rises (shorter average frametimes), but the frames come unsyncronized.

e.g.:
Single GPU 30FPS: 33 - 33 - 33 - 33 - 33
SLI 30FPS: 53 - 13 - 53 - 13 - 53 - 13

both have a 30FPS = 33ms per frame on average, but the deviation with multi-GPU is way higher. So a frametime benchmark would give information if this occurs also with triple-Sli.

@Edward: you get other FPS? or do you just wonder? :D :D