So I have been browsing the manual of one of my boards today in an attempt to understand the potential usage of the black dimm slots on Supermicro X11 SP boards...
I wondered how badly it would impact the performance if they are used and while I have yet to hear from SM support I found this document hinting at the potential impact - and its actually quite large. Never realized that it had that much impact not to have a balanced or full config...
O/c this is in regard to Lenovo servers with 12 modules per CPU and not SM with 6/8 but it at least gives an impression for my use case - and of course makes a very good case to think more about this than I have been doing before...
Xeon E5v4: http://lenovopress.com/lp0501.pdf
Xeon SP: https://lenovopress.com/lp0742.pdf
I wondered how badly it would impact the performance if they are used and while I have yet to hear from SM support I found this document hinting at the potential impact - and its actually quite large. Never realized that it had that much impact not to have a balanced or full config...
O/c this is in regard to Lenovo servers with 12 modules per CPU and not SM with 6/8 but it at least gives an impression for my use case - and of course makes a very good case to think more about this than I have been doing before...
Xeon E5v4: http://lenovopress.com/lp0501.pdf
Xeon SP: https://lenovopress.com/lp0742.pdf