hi how are you ?

sorry for disturbing you , recently i bought a GA-X99 Gaming5p and a 5820K and also installed a SSD M.2 Adata SP900 drive ,
when my computer wants to start windows 10 (UEFI , XHCI ) sometimes it boots normally and sometimes hanging up , and nothing happens
and i have to reset the system times and times till it boots normally , and also i have updated the bios into F21c the latest bios and the problem still exist

can you help me to fix this problem ?

thank you very much

my hardware : X99gamin5p , Gskill 3000 Mhx 16 gb , 3x HDD seagate 2 tb , 1x SSD SP900 M.2 256 GB , Graphic R9 390X G1 , Power 1200 Cooler master , ...