spooky2th :
It is most likely that your 1333MHz memory is bad. The two BIOS updates that I mentioned earlier that improved memory compatibility, were 32.8 and 32.9. If you are running BIOS 32.10 like say, you should be OK. Maybe you better think twice about a BIOS update, especially with a MSI board.
Well it's too late... Anyway my bios update went successful. So yay. Anyway, I am about to confirm whether my ram is broken or something else. 90% confident it is my ram. Clearing CMOS now. Will update in a minute.
(Update 2: Successfully updated my bios.

Time to check and see if it is my ram or my computer problem... The moment of truth
😀
P.S. Getting late for school... Don't really care because last day of school but got exam still...
(Update 3: YES. Ram problem confirmed. Okay. Trillion of thanks need to be given to you guys for helping me out! Couldn't thank you guys much more

In solving this issue, ram confirmed dead, power supply fan suddenly made a loud sound, and my learned many many things about ram and bios! Thx guys. I think I am going to post another form on other topic soon! Keep and eye out! Thanks once again
P.P.S Getting REALLY late for school now...