Problem with ram and cpu overclocking

kiaff75

Honorable
Jun 10, 2013
140
0
10,710
Hello, I'm having issues getting my ram up to its "factory" speed (8gb corsair vengence 2133) and like I've read on some other threads my mobo sets it up at 1333 :/ The problem is, when I change it to 2133 the overclock fails on restart. it doesnt matter whether my cpu is overclocked or set to factory defaults, it seems to only be an issue with the ram. What am i missing here??

amd fx4300 @ 4.5Ghz (well not anymore at the moment till I can figure this out..)
asus M5a99 fx pro mobo
8 gb corsair vengence red @2133mhz :mad:
asus amd 7870
zalman cnps10x performa cpu cooler
antec high current gamer 80+bronze 620 watt power supply
antec p180 full tower case