had this problem earlier

played games all of sudden BSOD, and wont back boot to windows. ram only read 2gb out of 6gb.

tried to re arrange mem slot, but wont boot up to bios.

tried 1 stick at each time, 2 stick wont boot to bios 1 stick boot up to bios, when tried to boot to windows pass the win 7 loading screen afterward screen just went black.

not sure whether it is ram problem or bad memory slot.

cpu using iy 980x
mem: kingstone hyperx 6gb kit 2000mhz.