https://community.intel.com/t5/Mobile-and-Desktop-Processors/Quad-Node-system-Processor-selection/m-p/292561#M6424 <P>Hello Ron, </P><P></P><P>As long as the processors are listed in the compatibility list of the server unit it's ok. However, to achieve a more reliable performance is recommended to use a processor with the same model and stepping to avoid any kind of problems with the microcode or even error messages. </P><P></P><P>Regards,</P> Wed, 17 Apr 2013 17:03:55 GMT FGonz6 2013-04-17T17:03:55Z https://community.intel.com/t5/Mobile-and-Desktop-Processors/Quad-Node-system-Processor-selection/m-p/292560#M6423 <P>In reference to R2208LT2HKC4 Quad Node server 2U system, can I install two E5-4620 processors and at a later time install two - E5-4650 processors? If this is possible, what are the negatives to a configuration with mixed processors as described above or the justification &amp; benefits of the E5-4650? I thank you in advance for your contribution.</P> Mon, 15 Apr 2013 10:01:40 GMT https://community.intel.com/t5/Mobile-and-Desktop-Processors/Quad-Node-system-Processor-selection/m-p/292560#M6423 RSica 2013-04-15T10:01:40Z https://community.intel.com/t5/Mobile-and-Desktop-Processors/Quad-Node-system-Processor-selection/m-p/292561#M6424 <P>Hello Ron, </P><P></P><P>As long as the processors are listed in the compatibility list of the server unit it's ok. However, to achieve a more reliable performance is recommended to use a processor with the same model and stepping to avoid any kind of problems with the microcode or even error messages. </P><P></P><P>Regards,</P> Wed, 17 Apr 2013 17:03:55 GMT https://community.intel.com/t5/Mobile-and-Desktop-Processors/Quad-Node-system-Processor-selection/m-p/292561#M6424 FGonz6 2013-04-17T17:03:55Z