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Multi GPU folding with a 470 and 8800GT

post #1 of 12
Thread Starter 
Hey guys, I'm having some trouble folding on both my 470 and 8800 at the same time. I've searched for special tricks or required clients, and followed this guide to try and make everything work, but I'm still running into issues.

So here's my current set up. I've installed the GPU3 client on my system, and followed everything in that guide. My GTX470 is set -local -gpu 0 -forcegpu nvidia_fermi and it works perfectly, no issues there. My 8800GT is set -local -gpu 1 -forcegpu nvidia_g80, and it will start up, but won't do any work. If I check the logs, it downloads a work unit, but fails at trying to start the Folding@home core. The core status error is 63 (99).

I've been having trouble trying to configure these two to work together for some time now, but would really like to get them both pumping out WU's for the upcoming foldathon. If someone could help me out with this issue, that would be awesome. Thanks in advance.
post #2 of 12
You need to use the GPU2 client for the 8800GT.

You might be able to get it to work if you use the -advmethods flag for the 8800GT which makes it run GPU2 units, but it would probably be easiest to just use the GPU2 client.
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post #3 of 12
Thread Starter 
So I can have both GPU2 and GPU3 clients installed side-by-side? I think I tried this before and ran into issues. I'll try it again once this other WU finishes (don't want to risk losing it) and see if I can get that 8800 running.
post #4 of 12
When it installs the GPU2 client, it may over write your GPU3 folder, so what you need to do is to copy the GPU3 folder to a different location first.

I used to run a GTX480, 8800GT, and 9800GT in one system. It can be done.
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post #5 of 12
Thread Starter 
Ok cool, I've already moved the folders, so it should just be a new installation. I'll let you know how it goes.
post #6 of 12
I folded once on a 450GTS and 9800GT at the same time. I used the console versions of GPU2 and GPU3 and never had any issues (other than remembering to change the machine ID during the console initial configuration)
post #7 of 12
Thread Starter 
Cool, there they both go. Thanks so much!
post #8 of 12
Quote:
Originally Posted by k4m1k4z3 View Post
You need to use the GPU2 client for the 8800GT.
You don't need GPU2 for the 8800GT; it will run GPU3 just fine, though it will still download GPU2 WUs.
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post #9 of 12
Quote:
Originally Posted by zodac View Post
You don't need GPU2 for the 8800GT; it will run GPU3 just fine, though it will still download GPU2 WUs.


I think I said something about that in the 2nd sentence.
But from what I gather, it will not run GPU3 units just fine while running GPU3 on a fermi in the same system. Am I right? To run both, he needs to do GPU2 on the old card and GPU3 on the fermi?
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post #10 of 12
No... it will, especially if you use the -forcegpu nvidia_g80 flag, which would be necessary.

Unless the Fermi isn't in the primary slot... but who does that?
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