TroubleshootingDiagnostic toolsIBM Dynamic System Analysis Preboot diagnostic programDSA diagnostic test resultsDSA Broadcom network test results405-005-000On this page405-005-000 : BRCM:TestLoopbackMAC Test PassedBRCM:TestLoopbackMAC Test PassedSeverityEventServiceableNoRecoverableNoAutomatically Notify SupportNoRelated LinksLenovo Support Web siteLatest level of DSAGive documentation feedback