Bought and installed, 1600 mhz memory, but it is only running at 1333. Tags: Memory Gigabyte Last response: October 16, 2009 3:56 PM in Memory Share Jeardawg October 16, 2009 8:07:10 AM Mobo = Gigabyte GA-P55m-UD2 it lists on the gigabyte website as being valid up to 2200mhz My CPU = an intell i5 and my memory is a set of XMS3 DDR3 1600 coursair, but now that I am up and running my system is listing it as 1333mhz did I do something wrong or miss something? More about : bought installed 1600 mhz memory running 1333 wannabe October 16, 2009 3:56:27 PM 'Load Optimized Defaults' in your Bios Can't find your answer ? Ask ! Publish Related resources : ForumAfter install FX-4100 DDR 1600 RAM only running 1,333mhz ForumBought 1600mhz but running on 1300 Forum1600MHz RAM running around 1333MHz Forum1600 mhz ram compatible with 1333mhz ram socket Forum1600mhz ram on a 1333 / 1066 mother? ForumIf my CPU only supports DDR3 1333 mhz RAM can I put in DDR3 1600 MHz ? Forum1600 memory only reads at 1333 ? ForumComputer won't boot on 1600MHz Memory ( 1333Mhz Only ) Forum1600 running at 1333 Forum1333Mhz & 1600Mhz memory ! ForumNew memory , memory is 1600 but shows up as 1333 ? ForumDDR3 memory running at 1333MHz instead of rated 1600MHz ForumCan I use 1600MHz and 1333MHz together in laptop ForumAny major difference between 1600mhz vs 1333mhz ForumCan i use 1600Mhz RAM if my motherboard only supports 1333Mhz ForumIntel i5 3550p & AS Rock Z77 PRO 3 More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !