5520vi ram operate in 800Mhz!

[idata]

why 5520vi with two xeon 5620 and 9 * 4GB kingston 1333 Mhz operate in 800 mhz ?

how to tune it to 1333 .

please help thank's.

[DSilv11]

Memory speeed is determined by the Processor QPI links and the memory population rules.

E5520 only supports 800Mhz and 1066 Mhz operation http://ark.intel.com/products/40200?wapkw=e5520 http://ark.intel.com/products/40200?wapkw=e5520

9 DIMMS is kind of a strange number to be populated.

Each processor memory is independent with a max of 6 DIMMS per processor.

On a E55xx processor, more than 1 DIMM per channal (blue slots only) will cause the memory to clock down Check the Users Guide pg 47

http://download.intel.com/support/motherboards/server/mfs5520vi/sb/mfs5520vi_user_guide1.pdf http://download.intel.com/support/motherboards/server/mfs5520vi/sb/mfs5520vi_user_guide1.pdf Pg 47

I don't see VI in the memory configuration tool, but WB is simular http://imct.intel.com/cfgview.aspx?id=546931 http://imct.intel.com/cfgview.aspx?id=546931

[idata]

THank you for your attention to my problem.

All of the cpu's are 5620 no 5520.

[DSilv11]

Sorry, wrong link http://ark.intel.com/products/47925/Intel-Xeon-Processor-E5620-(12M-Cache-2_40-GHz-5_86-GTs-Intel-QPI http://ark.intel.com/products/47925/Intel-Xeon-Processor-E5620-(12M-Cache-2_40-GHz-5_86-GTs-Intel-QPI)

Same comment. Processor only supports 800 & 1033

http://imct.intel.com/cfgview.aspx?id=548758 http://imct.intel.com/cfgview.aspx?id=548758