Chip problem limits supply of quad-core Opterons

An industry source at a tier-two reseller told The Tech Report that the TLB erratum has led to a “stop ship” order on all Barcelona Opterons. When asked for comment, spokesman Phil Hughes said AMD is shipping Barcelona Opterons now, but only for “specific customer deals.” Industry sources have suggested to TR that those deals are high-volume situations involving supercomputing clusters. Such customers may run workloads less likely to be affected by any workarounds for the erratum that reduce L3 cache performance, and those customers could potentially consume hundreds of thousands of CPUs. Our sources indicate, and the current availability picture would seem to confirm, that quad-core Opterons are not shipping to OEMs or the channel more generally.