So i have 2 R710 servers. 

I took the memory out of one and put in the other for a total of 18x4=72.

The memory in the main R710 is...

2RX8-8PC3L-10600R-9-10-B0

The memory i added is...

1RX4-PC3L-10600R-9-12-C2

This caused an E2113 error on B3. I swamped, changed and fooled with the memory for days and every single time it was on B3. I finally took out the memory i added thinking ill just do with out for now and yet.... the error is still showing? What on earth do i do now? Am i missing something? its just like it was before i added memory.