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Multi gpu's + Dummy plugs ?

post #1 of 9
5/10/10 at 1:03pm
Thread Starter 
OK guys from following this guide i have manged to set up and get my 9800GT folding
As my 4890 is in the first slot and 9800gt in the 2nd slot i had problems getting folding to work the guide said to add -gpu (0/1/2)
In the end i had to add -gpu 0 to get the 9800gt folding not sure why that is ?

Are dummy plugs still needed ?
I've tried the -forcegpu nvidia_g80 flag it doesn't seem to work ? I couldn't get the card to fold at first i have had to plug my monitor into it using VGA.

I read online that using new nvidia drivers you don't need dummy plugs atm I'm using 185 like it said to in the guide ?
Because I'm only folding on the nvidia card not the ATi card and i don't want to run phyxX should i update the nvidia drivers ?
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post #2 of 9
5/10/10 at 1:05pm
It might be your drivers but I am by no means an expert on it, I do know that there are new drivers available, that don't require dummy plugs, and 185 isn't very new
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post #3 of 9
5/10/10 at 1:10pm
the GPU -0 tag is to identify your GPU's. Your second one needs GPU 1 etc.

I'm folding with 3 GFX cards in my rig and one has no monitir plugged in and no dummy plug either. It has the -forcegpu nvidia_g80 flag.

Mine are all nvidea so they are using the same drivers. i don't know how well mixing ATI and NV works. Have you got both sets of drivers installed?
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post #4 of 9
5/10/10 at 1:32pm
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@ paleblue: yes 10.4 ati and 185 nvidia
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post #5 of 9
5/10/10 at 1:35pm
  • zodac
  • "Canada" is 50% the letter "a"
  • Retired Staff
It might be the drivers, but if you were to update them, you wouldn't be able to fold with the 9800GT anyway. Also, the -forcegpu flag doesn't always work; this might be one of those cases.

It would probably be better for you to get some resistors and make yourself a dummy plug.
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post #6 of 9
5/11/10 at 9:43am
Thread Starter 
I think it might be the drivers i might try updating them and see what happens and have a play about and I'll report back

Would you say the ppd is right for the 9800GT ?
It seems to take a long time to complete a wu with HFM showing TPF: 03.54 its only running stock clocks 600/900/1500 but i though it would be faster ?



Also GPU-Z and HWMonitor shows the gpu at 105'C and the fan is at 100% too. I took the side of the case off earlier and put x2 120mm fans pushing air at the card which that didn't seem to make a difference in temps so i think it might have bad temp senser.
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post #7 of 9
5/11/10 at 10:12am
  • zodac
  • "Canada" is 50% the letter "a"
  • Retired Staff
It seems pretty low, but I think that's more the WU; the 548s are the worst ones for me. They drop me to ~3.5k, with shaders at 1728.
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post #8 of 9
5/11/10 at 1:16pm
Thread Starter 
Could i use a virtual machine to just fold on the nvidia card ?

Edit delete that
Edited by Richy1204 - 5/11/10 at 1:30pm
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post #9 of 9
5/11/10 at 1:23pm
  • zodac
  • "Canada" is 50% the letter "a"
  • Retired Staff
...not wure what you mean. Don't you have the GPU client working already?
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