Specifications

78 Product Errata
25759 Rev. 3.79 July 2009
Revision Guide for AMD Athlon™ 64 and AMD Opteron™ Processors
118 Slew Rate Violation Causes DDR266 RDIMM Failures
Description
A violation of the Sout specification (DDR slew rate) causes DRAM failures when eight dual-rank
registered DIMMs are populated, the memory clock speed is 133 MHz (DDR266), and odd FIDs
below 10x are selected.
Potential Effect on System
Memory corruption resulting in unpredictable system behavior.
Suggested Workaround
Systems should employ one of the following potential workarounds:
• Populate systems with a maximum of six dual-rank RDIMMs
• Do not select DDR266 memory speeds
• Do not select odd FIDs below 10x
Fix Planned
No