AMD K manual Products Affected. A9

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Preliminary Information

23614K— October 2003

AMD Athlon™ Processor Model 4 Revision Guide

15 Processor Does Not Support Reliable Microcode Patch Mechanism

Products Affected. A9

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 assured. 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 in future revision.

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Contents Revision Guide Advanced Micro Devices, Inc AMD Athlon Processor Model 4 Revision Guide Revision HistoryRevision Guide Policy AMD Athlon Processor Model Revision GuideProduct Errata Products Affected. A4, A5, A6, A7, A9 Resolution Status. No fix plannedProducts Affected. A4, A5 Resistance Value of the ZN and ZP Pins Potential Effect on System. The system hangs Suggested Workaround. None Instruction Execution DeadlockProducts Affected. A4, A5, A6, A7 Potential Effect on System. The system will hang Products Affected. A9 Preliminary Information Resolution Status. No fix planned Preliminary Information Preliminary Information Potential Effect on System. System failure Single Step Across I/O SMI Skips One Debug Trap Kernel Workaround Software Prefetches May Report a Page FaultPreliminary Information Revision Determination Technical and Documentation Support