Actually he is connected to nitro2 the URL does not make a difference only the port. But I think he needs to drop intensity to 11 as his card is generating hardware errors only. Not sure about the specifics of his card, but some 7950's are not like other 7950's this seems weird but it's true. My sapphire 7950's have outperformed my HIS 7950's for some reason on the same settings.