X299 FTWK Build, Won't recognize memory in Slot 1

According to the manual the DDR 5 ram is supposed to go in A2 & B2 when using two sticks i kept getting code 55 and no screen i took out 1

Really, for gaming purposes with discrete graphics, difference in single- and dual-channel FPS is negligible If one only uses their PC for

which slot game is easy to win It will run, but not efficiently Make certain that the RAM specifications are; 204-pin PC-10600 DDR3 SO-DIMM I also suggest that

which slot game pays out the most I currently have one stick of 8 GB installed in the rearmost slot - 8316700 @UncleTime2