the RAM in the motherboard not equal the installed  RAM not equal the usable RAM

Discussion created by mohamedadel on Apr 11, 2020
Latest reply on Apr 11, 2020 by hardcoregames™

i have 8gb ram 2*4
the windows show that the installed ram 6gb and the usable 4gb.
in the bios setting see 4gb .
in the motherboard i have 2slot one of them when i put the RAM into it only i get nothing in the screen .
but in cpu-z software see it 8gb.
so now i tried changing the RAM and cpu .
clean the motherboard, update bios ,clear bios,update drivers
but the problem is the same
so if anyone have a solution for this problem i will be grateful to him.