Running a 7970 and 5850 in a Windows box

[Dr. K6]

Hello all,

I'd put this in a more appropriate forum but I'm here in Newbieland

I have a Windows desktop with a 7970 and a 5850 in it that I'm trying to get both to mine.  Full specs are:

Windows 7 64-bit
13.3 beta Cats, whatever sdk comes with that
7970
5850
i5 2500K
8GB RAM
Oodles of HDD space

Anywho, I've been trying to get both to mine at the same time and the 5850 for some reason will not produce a valid nonce.  I get a "invalid nonce - HW error" from CGminer and other miners (tried GUIminer, DiabloMiner, and Phoenix) will not produce any work.  I've even tried mining bitcoins with one and litecoins with the other with no effect.  What am I missing?  Thanks in advance for any help/advice/suggestions, it's much appreciated.

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[Dr. K6]

Bump if anyone has any ideas

[SgtSpike]

If you take the 7970 out of the box, does the 5850 hash successfully?

[Dr. K6]

I haven't tried it, but the 7970 is on water so it'd be difficult to move it out of the slot.  Thanks for the reply!

[PookieB]

Do you see both cards listed in GUI miner?  You have to create a new miner for each card in GUIminer. I recommend cgminer, it takes a bit of command line or a config file but you'll pull higher hashes with it.  I'm curious to know what kind of hashes you're getting with the 7970, I'm looking at buying one of those.

[Jackin Jill]

Are you trying to crossfire the two cards?