(07-16-2010, 01:52 PM)atom Wrote: how did you manage to disabled crossfire?
By disable crossfire in Catalyst Control Center.
(07-16-2010, 01:52 PM)atom Wrote: this is the well known and often discussed HD5970 (cypress) crossfirex ATI driver problem. i have exactly the same error on my card and there is currently no way to workaround this problem except using -d 1. but this limits the usage to first gpu (well i think it is the "virtual" crossfirex'd gpu) but that also means we can not gain the full 5970 performance. but it should solve the random output of cracked hashes.
I have 2x5870 crossfired, but the problem is the same, I guess. Thus, only
one card works in these conditions!
(07-16-2010, 01:52 PM)atom Wrote: we have to wait for ATI updating their drivers. till that, use -d 1 and dont forget -n 80 for max. performance
Yes, -n 80 gives a much better performance indeed. However, I still
find it slower than ighashgpu, above 3200 for ighashgpu on single hash,
below 1500 for oclhashcat. Oclhashcat looks way much better because
of the development you have been done, are keep doing, while ighashgpu
just stoped the development, which is a pitty.
About multihash performance they are very similar in performance.