New to bitcoin/mining - Limited to one GPU?

[Chumpy922]

Hi, I have 2x AMD 5770s in Xfire and an i5 750 in my computer. I tried setting up two instances of the gpu miner for each of my graphics cards, no luck. In the properties of the shortcut to each program i put -gpu0 and -gpu1. I get about a 70K Khash/s on one then 40K Khash/s on the other. If i close one of the programs, the open one goes up to about 113k Khash/s. If i disable Xfire, one gpu runs at 0 while the other runs at the full 113k. Any suggestions?

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[nphard]

With a 5770, you should be getting at least 150 Mhash/s stock.  If you're sure your numbers are Khash/s and not Mhash/s, you're probably only using your cpu to mine.  What program are you using to mine?  If those numbers are Mhash/s, for some reason only one card is working. If you provide a little more information I'm sure someone will be able to help you.

[ryepdx]

What miner are you using...?

[Garrett Burgwardt]

-gpuX is not the correct argument.

-d X is, if you're using poclbm.

[Chumpy922]

I'm using the OpenCL miner in here: http://bitcointalk.org/index.php?topic=2444.0

The numbers are in Khash/s but its 100,000 not 100. I just got it running on my server, which also has a 5770 and that is getting 140,000 Khash/s vs the other 2 in crossfire which only total 100,000 khash/s.

I'll try changing the gpu arguement

[ryepdx]

I'm not sure, but I think Diablo Miner handles multiple GPUs automatically. Can't confirm it myself, though. Sorry.