Hmm I see you have tested yCrunsher, too, but only the "modern" versions. There is also an old x87-one, which however was deleted in the newest 0.61 version (everybody has at least SSE3 these days, hasnt it?). If you have time please download the old 0.5.5 package:and then make a test run with the "x86.exe", I assume that it uses x87. What else can it use ;-)The build description is:Apart from that I wonder what "magic" is switched on. Could it maybe be some FDIV-circuits? I know that the Integer DIV-Units are enabled for the Piledriver cores (even though they were already there at the first Bulldozers, but they were deactivated). Now an FDIV-Unit is announced for Steamroller - I wonder if there is already some test-unit for that purpose integrated in the current core versions.