Instruction/ maintenance manual of the product ATHLON K AMD
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AM D Athlon™ Pr oc essor Model 4 R evision Guide Publication # 23614 Rev: K Issue Date: October 2003 Preliminary Information.
Preliminary Information T rademarks AMD, the AMD Arr ow lo go, AMD Athlon, AMD Dur on, and combinations thereof , AMD-751, and AMD-756 ar e tr ademarks of Ad v anced Micro De vices, Inc. Other product names us ed in this publication are for id entification purposes onl y and ma y be tr ademarks of their r espectiv e companies.
3 236 1 4K — October 2003 AM D Athlon™ Pr ocessor Model 4 Revision Guide Preliminary Information Revision History Date Rev Description October 2003 K Revised erratum #2 4. June 2003 J Added erratum #24. December 2002 I Added errata #2 1–23. July 2002 H Added erratum #20.
4 AM D Athlon™ Processor Model 4 Revision Guide 236 1 4K — October 2003 Preliminary Information AM D Athlon™ Pr ocessor Model 4 R evision Guide The pur pose of the AMD Athlon™ Processor Model .
5 236 1 4K — October 2003 AM D Athlon™ Pr ocessor Model 4 Revision Guide Preliminary Information 1 Pro du ct Er ra ta T his section documents AMD Athlon pr ocessor model 4 pr oduct errata. T he errata ar e divided into categories to assist r efe r encing particular err ata.
6 AM D Athlon™ Processor Model 4 Revision Guide 236 1 4K — October 2003 Preliminary Information 5 MCA Bus Unit Control Register MSR 408H Returns I ncorrect In formation Products Affected.
7 236 1 4K — October 2003 AM D Athlon™ Pr ocessor Model 4 Revision Guide Preliminary Information 10 Resistance Value of the ZN and ZP Pins Products Affected.
8 AM D Athlon™ Processor Model 4 Revision Guide 236 1 4K — October 2003 Preliminary Information 11 PLL Overshoot on Wake-Up from Disconnect Causes Auto -Compensation Circuit to Fail Products Affected. A4, A5, A6, A7, A9 Normal Specified Operation.
9 236 1 4K — October 2003 AM D Athlon™ Pr ocessor Model 4 Revision Guide Preliminary Information 13 Instruction Execution Deadlock Products Affected. A4, A5, A6, A7 Normal Specified Operation. Legitimate instruction sequences shou ld execute as specified.
10 AM D Athlon™ Processor Model 4 Revision Guide 236 1 4K — October 2003 Preliminary Information 14 Processors with Half-Frequency Multipliers May Hang Upon Wake-up from Disconnect Products Affected.
11 236 1 4K — October 2003 AM D Athlon™ Pr ocessor Model 4 Revision Guide Preliminary Information 15 Processor Does Not Support Re liable Microcode Patch Mechanism Products Affected. A9 Normal Specified Operation. The pr ocessor should function proper l y after a microcode patch is loaded.
12 AM D Athlon™ Processor Model 4 Revision Guide 236 1 4K — October 2003 Preliminary Information 16 INVLPG Instruction Does Not Flush Entire Four -Megabyte Page Properly with Certain Linear Addresses Products Affected. A4, A5, A6, A7, A9 Normal Specified Operation.
13 236 1 4K — October 2003 AM D Athlon™ Pr ocessor Model 4 Revision Guide Preliminary Information 17 Code Modifications that Coincide with Level 2 Instruct ion TLB Translations May Escape Detection Resulting in Stale Code Execution Products Affected.
14 AM D Athlon™ Processor Model 4 Revision Guide 236 1 4K — October 2003 Preliminary Information 20 A Speculative SMC Store F ollowed by an Actual SMC Store May Cause One-Time Stale Execution Products Affected. A4, A5, A6, A7, A9 Normal Specified Operation.
15 236 1 4K — October 2003 AM D Athlon™ Pr ocessor Model 4 Revision Guide Preliminary Information 21 Real Mode RDPMC with Illegal ECX May Cause Unpre dictable Operation Products Affected.
16 AM D Athlon™ Processor Model 4 Revision Guide 236 1 4K — October 2003 Preliminary Information 22 Using Task Gates With Breakpoint s Enabled May Caus e Unexpected Faults Products Affected. A4, A5, A6, A7, A9 Normal Specified Operation. T ask gates should corr ectly use the TSS selector ou t of the task gate for C A LL and JMP instructions.
17 236 1 4K — October 2003 AM D Athlon™ Pr ocessor Model 4 Revision Guide Preliminary Information 23 Single Step Across I/O SMI Skips One Debug Trap Products Affected. A4, A5, A6, A7, A9 Normal Specified Operation. When single stepping (with EFLA GS.
18 AM D Athlon™ Processor Model 4 Revision Guide 236 1 4K — October 2003 Preliminary Information 24 Software Prefetches May Report A Page Fault Products Affected. A4, A5, A6, A7, A9 Normal Specified Operation. Softw ar e pr efetc hes should not r eport page faults if they encounter them.
19 236 1 4K — October 2003 AM D Athlon™ Pr ocessor Model 4 Revision Guide Preliminary Information Because the actual err ata is infr equent, it does not pr oduce an e xcessiv e n umber of page faults that affect system performance.
20 AM D Athlon™ Processor Model 4 Revision Guide 236 1 4K — October 2003 Preliminary Information 2 R evision Determination T able 2 sho ws the AMD Athlon pr ocessor model 4 identifica tion number r eturned by the CPUID instruction f or each r e vision of the processor .
21 236 1 4K — October 2003 AM D Athlon™ Pr ocessor Model 4 Revision Guide Preliminary Information 3 T echnical and Documentation Support The f ollo wing docume nts pr ovide additional inf ormation regar ding the operation of the AMD Athlon processor model 4.
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If you already are a holder of AMD ATHLON K, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime AMD ATHLON K.
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