Assuming the 'Option 1' Tri-Channel set then do NOT use XMP, and instead manually set the Frequency, DRAM Voltage, and CAS Timings sometimes a QPI/VTT/VCCIO -> 1.20v helps.
Then I noticed 'F3-12800CL9D-8GBXL' I've posted here a zillion times that those will not 9/10 run Rated in 4x4GB and to use F3-12800CL8D-8GBXM IF you want DDR3 1600 MHz speed.
Solution 1 - Run the F3-12800CL9D-8GBXL at DDR3 1333 MHz and look at CPU-z 'SPD' for 667MHz CAS Timings and add Command Rate -> 2.
Solution 2 - RMA RAM and get 2 sets of F3-12800CL8D-8GBXM
Solution 3 - Get a 4x4GB Matched Set -> F3-12800CL9Q-16GBXL
Thanks Jaquith, you are helpful and brief, as always
I quoted you so I could copy and paste. I'll pass that along.
I hadn't spotted the 4-pack of RAM myself. I wonder if it's really that simple? We'll see!