AMD 30925 5.4 Memory Guidelines for AMD Opteron Processor- Based Systems , 5.5 AMD Opteron Processor Information

30925 Rev. 3.04 February 2004 Builder’s Guide for AMD Opteron™ Processor-
Based Servers and Workstations
Chapter 5 Hardware Considerations 35
AMD strongly recommends that the operation of the power supply is investigated and fully
understood by the system builder to meet the requirements of each configuration. Verification of
mechanical fit with the selected power supplies and other system components should also be
investigated by the system builder prior to purchase.
Additional information on AMD Opteron™ Processor configuration is available at
www.amd.com/configuration. In EMEA, please visit http://www.amd.com/opteronhardware. These
documents that are additional resources designed to provide guidance to you with the
configuration of a stable AMD Opteron™ processor-based platform.
5.4 Memory Guidelines for AMD Opteron™ Processor-
Based Systems
AMD Opteron processor-based platforms may be designed to leverage industry standard DDR
registered DIMMs. An independent testing company, Computer Memory Test Labs (CMTL), has
conducted memory compatibility testing. CMTL is an independent test facility and is able to test
RAM modules from different module suppliers. System builders should access the CMTL web
site at http://www.cmtlabs.com and view the recommended memory module list for the specific
motherboard manufacturer and motherboard model.
Note: The CMTL website is provided for informational purposes only, and AMD recommends that
a system builder conduct its own testing and validation to confirm that the memory modules
are suitable for its systems.
Several AMD Opteron processor-based motherboards currently support some of the following
memory features:
• PC1600, PC2100, PC2700, and PC3200 registered memory modules
• 184-pin 2.5-V and 2.6-V DDR DIMMs
• 28-bit DDR memory bus
• 64-Mbyte, 128-Mbyte, 256-Mbyte, 512-Mbyte, 1-Gbyte, 2-Gbyte and 4-Gbyte memory
technology
• Production DIMMs from industry standard DRAM memory manufacturers.—Only registered-
type memory modules should be used.
5.5 AMD Opteron™ Processor Information
AMD Opteron processors are identified by a three digit model number, xyy, where:
x—Indicates the maximum scalability of the processor. In other words:
100 series = 1-way servers and workstations