Please help me 2x 6800's problems in SLI mode..

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godzboyz

Weaksauce
Joined
Mar 23, 2005
Messages
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Recently I've purchased amd 64 3200, a8n-sli (non-deluxe), hyperx ram 512mb, 2x 6800's 256mb PCI-E (non gt or ultra) these two are pulled from Dell dimension Desktops so they're made by nvidia...

THE GOOD NEWS: Installation was very quick and I got a 3dmark 05 score of 7000.. :))

THE BAD NEWS: After I play almost any 3d games for a while in SLI mode the framrate starts to jump from 60 to 5, and it jumps constantly and it is skipping almost every second, jumping back and forth during full load, I've tried almost every FORCEWARE and Nvidia Nforce Drivers.... still doesn't fix it :(

MORE BAD NEWS: I don't know why but :( I can't seem to enable SFR, or AFR or AFR2 at all in SLI RENDERING TAPS under Performance and quality settings, it only gives me two options that's SLI SINGLE-GPU RENDERING, and SLI MULTI-GPU RENDERING. I tried almost every FORCEWARE and they only allow two rendering modes....

I have no idea why the hell this is happening. When I start to play CS:Source or Doom3 or Halo Trial multiplayer it starts up fine for 1-2 mins of gameplay at very smooth rate, but after that it jumps to fps of 5 then an FPS of 60 back and forth back and forth. ANY HELP WOULD BE GREATLY APPRECIATED PLEASE!!!!!!!

I'm using WINXP by the way..

please email me at botd4u@yahoo.com if you have any cure of anytype
 
did you uninstall the old graphics card drivers and install a fresh set.

reformats can help sometimes..

yea.. and power is a big concern.

look at those , might help.
 
I have a 600watt powersupply and it does 12v at 24A. But I'm gonna formatt this damn harddrive....
 
You might consider a beefier PS as well. Wattage doesn't matter a lick if it can't put out enough amperage. 24A on the +12 isn't bad, but with a SLI setup you should really aim for +12 to be in the 30s.

Another fact to consider is the quality of the PSU itself. What brand is it? Alot of lower quality brands post specs at absolute peak conditions (low temp etc), which aren't represented in the end user's system. Thats why a quality manufacturer is as important as the specs.

Remember that the PSU efficiency decreases as the temperature increases. What does Corecenter tell you the voltages are on each rail when you start to experience these framerate dropoffs? You should Alt-Tab out of the game and check it out.
 
You should try disabling SLI and running each card on it's own. Also, could heat be a factor considering they start out fine then go flakey? Did you get the cards new or used? Or you OCing them?
 
I can run source fine on bothcards running at 400core/700mhz memory with no heat problems they're both idle at 34c and fullload at 55-60c so i'm pretty sure it's safe and I'm sure it's not a voltage problem considering I just ran CS:source for straight 6 hours at 1600x1200 2xAA, 16xAH today, it's just halo and doom 3 now.....
 
but why the hell do I have only 2 options to choose at SLI rendering tap.... single and mutli gpu rendering it doesn't show up AFR or SFR at all....
 
when I click on SHOW GPU LOAD Balancing I see a line Horizontaly and two bars on the left side in all my games what does this mean?...
 
godzboyz said:
when I click on SHOW GPU LOAD Balancing I see a line Horizontaly and two bars on the left side in all my games what does this mean?...
Click to expand...

it's showing you where the screen is split for each card to render.
 
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