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Some questions

post #1 of 7
Thread Starter 
I have a few questions and they don't seem to be anywhere.

How hard is this to set up, for an ati card?
What kind of points can I expect ppd for a 3870?
Can I fold on multiple cards?
Anything special about setting up multiple cards?
Does overclocking the cards help?



Basically I have two rigs with 5x 3870's total and am thinking for a short term run I might fire them up for the team.
post #2 of 7
Quote:
Originally Posted by lemans81 View Post
I have a few questions and they don't seem to be anywhere.

How hard is this to set up, for an ati card?
What kind of points can I expect ppd for a 3870?
Can I fold on multiple cards?
Anything special about setting up multiple cards?
Does overclocking the cards help?



Basically I have two rigs with 5x 3870's total and am thinking for a short term run I might fire them up for the team.
It's fairly easy to set it up in general (at least fairly straightforward). There're guides posted in the BOINC forums here as well and if you do have trouble, people here are always eager to help. Here's the guide:http://www.overclock.net/overclock-n...-only-use.html

I'm not sure about the points and multiple cards. Do you mean do separate projects on individual cards? I don't think you can, unless one's an Nvidia and the others ATI (although I could be wrong).

In one of the threads here, there was some discussion on overclocking. I'll try to find it. I can't seem to find it...
Edited by kurt1288 - 6/8/10 at 5:37am
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post #3 of 7
You get 2k PPD for each 3870, I believe.
It should be very easy to set up, although you might need a dummy connector.
Nothing special, just plug them in.
You will see an improvement if you overclock the shaders.

I'm also not sure, but I think you remove the CrossFire bridge.
post #4 of 7
Thread Starter 
Wow I thought boinc was ati favored, in F@H I get 2800-3200 ppd. Wonder what tool allows for shaders to be overclocked on an ati, I generally use rivatuner or ati tool, last check neither of them did.
post #5 of 7
BOINC isn't really ATI favored anymore. You should try running Milkyway@home. Chances are you'll do better than 2000ppd. And honestly, right now, any sort of extra help is good for the us right now (of course).

EDIT: I found THIS page where he compares the RAC (recent average credit) of the various cards. Seems like the 4870 gets about 1.65 times more than a single 3870. I'm currently around 66000RAC (from BOINCstats. around 32000 from Collatz Conjecture). So a single 3870 should get around 40000/20000RAC. But you also said you have 5x 3870, so you'll probably do better.
Edited by kurt1288 - 6/8/10 at 8:19am
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post #6 of 7
Thread Starter 
So I assume I will need to run a separate client for each card?
post #7 of 7
Quote:
Originally Posted by lemans81 View Post
So I assume I will need to run a separate client for each card?
No just need 1 client it should find all of them in your system and run fine you might need a dummy plug or extend the desktop on them in windows 7.
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SABERWOLF
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