We reported earlier today that AMD was denying problems with the upcoming B3 stepping of its quad-core processors, the new rev of the chip expected to squash the TLB erratum and, perhaps more importantly, to cast off the performance hit cause by the erratum workaround. AMD maintains that some B3-step chips are still on track for introduction this quarter, but it has delayed the introduction of faster Phenom 9700 (2.4GHz) and 9900 (2.6GHz) processors into the second quarter of 2008.