I also forgot to say that I'm using a 650W corsair Psu and that the motherboard led says "67" which means Late CPU initialization when I try to install the other 8gb of memory (16 total) to the third and fourth dimm.
I am 100% sure that my BIOS is updated to the latest version.
what should I do? is there any setting I can adjust in order to resolve the problem?
I sent the cpu back to test if it is faulted but it is working fine.
and with 8gb it has no problem.
only when I add the 8gb (2x4) it says "Late cpu initialization".
could the TEMPERATURE be the problem? as it is quite high ( 70°, I had to remove the thermal paste when I sent the cpu back for testing and now I'm waiting for the shop to send me more paste, it will take another day, meanwhile I'm using the Pc only for resolve this problem online )