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AMD 6 Processor Does Not Support Reliable Microcode Patch Mechanism, Preliminary Information

Models: 6

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19 Processor Does Not Support Reliable Microcode Patch Mechanism

Preliminary Information

AMD Athlon™ Processor Model 6 Revision Guide

24332E— December2002

19 Processor Does Not Support Reliable Microcode Patch Mechanism

Products Affected. A5

Normal Specified Operation. The processor should function properly after a microcode patch is loaded.

Non-conformance.The processor has the patch RAM BIST function disabled. Since BIST is not run on the patch RAM, reliable operation of the patch RAM cannot be guaranteed. Therefore it should not be used.

Potential Effect on System. When a microcode patch is loaded, the system may not behave properly.

Suggested Workaround. Do not load a microcode patch.

Resolution Status. Fix planned for a future revision.

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AMD 6 manual Processor Does Not Support Reliable Microcode Patch Mechanism, Preliminary Information, Products Affected. A5

Contents

Revision Guide Preliminary InformationAMD Athlon Processor Model 2001, 2002 Advanced Micro Devices, Inc Preliminary InformationTrademarks Revision History Preliminary InformationAMD Athlon Processor Model Revision Guide AMD Athlon Processor Model 6 Revision GuideRevision Guide Policy Preliminary InformationCross-Reference of Product Revision to Errata 1 Product ErrataPreliminary Information Errata Numbers and DescriptionCross-Reference of Erratum to Processor Segments Preliminary InformationAMD Athlon Processor Model 6 Revision Guide Workstation/Server1AMD Athlon Processor Model 6 Revision Guide Resolution Status. Fix planned for a future revisionPreliminary Information Products Affected. A0, A2AMD Athlon Processor Model 6 Revision Guide Resolution Status. No fix plannedPreliminary Information Products Affected. A0, A2, A5AMD Athlon Processor Model 6 Revision Guide 18 Processor May Issue Non-Connect Bus Cycle After FID Special CyclePreliminary Information Products Affected. A0, A2AMD Athlon Processor Model 6 Revision Guide 19 Processor Does Not Support Reliable Microcode Patch MechanismPreliminary Information Products Affected. A5Preliminary Information 20 Processor Performance Counters Do Not Count Some x86 InstructionsResolution Status. No fix planned AMD Athlon Processor Model 6 Revision GuideAMD Athlon Processor Model 6 Revision Guide Resolution Status. No fix plannedPreliminary Information Products Affected. A0, A2, A5Preliminary Information 22 Real Mode RDPMC with Illegal ECX May Cause Unpredictable OperationResolution Status. No fix planned AMD Athlon Processor Model 6 Revision GuideAMD Athlon Processor Model 6 Revision Guide Resolution Status. No fix plannedPreliminary Information Products Affected. A0, A2, A5Preliminary Information 24 Single Step Across I/O SMI Skips One Debug TrapResolution Status. No fix planned AMD Athlon Processor Model 6 Revision GuideAMD Athlon Processor Model 6 Revision Guide 2 Revision DeterminationPreliminary Information RevisionPreliminary Information 3 Technical and Documentation SupportAMD Athlon Processor Model 6 Revision Guide