This does work with the 8GB RAM sticks in the empty slots.  My machine now has 160GB of RAM.    
Hi, I have a T7810 configured with dual CPUs and 128GB - 4x32GB sticks.  It uses the D128a config in the table below and it works fine.   [IMAGE] I have 4 x 8GB sticks that I removed from this machine when I installed the 32GB RAM sticks.  Here's the question - can I install the 4 8GB sticks in the empty slots to get to 160GB?? There a D192 config using 16GB sticks in the empty slots - but will my 8GB sticks work? Thanks in advance  
T7810 Memory Config - 160GB?