DDR3 2133 Ram Downgraded to 1333?

[jeboner]

Hello,

My motherboard is listed as able to handle RAM speeds up to 2400, so I bought G.Skill Ares 2133 RAM to upgrade my current G.Skill Ripjaws 1600 sticks. However, after install my PC recognizes the RAM as 1333. I don't know where to go from here to remedy the issue.

My build:
A10-7850K
Asus A88XM-E
500w PSU

I'm installing an R9 380 and a new 750w PSU tomorrow when they arrive.

 

[voltoid27]

Sounds like you don't have XMP/AMP enabled. Look for a setting somewhere in the BIOS that mentions one of those two things and try turning on AMP. For me, that gives slightly tighter timings on my Patriot DDR3-2133 than XMP.

 

[jeboner]

I tried to enable DOCP and check for an AMP-type setting, but it doesn't show up when I go to check the RAM profiles. Not sure if I'm skipping a step or something.

 

[voltoid27]

Looking at the manual it should be in the AI Tweaker section just below AI Overclock Tuner. If it's not there, maybe you need to update your BIOS:

http://dlcdnet.asus.com/pub/ASUS/mb/SocketFM2/A88XM-E/A88XM-E-ASUS-2001.zip?_ga=1.259159434.1875161240.1461124579

 

[gskill support]

You may also need to boost the CPU-NB Voltage to stabilize the CPU for DDR3-2133.

But first check for the latest BIOS and enable XMP/DOCP Profile under AI Overclock Tuner

See how that works then increase CPU-NB Voltage +0.1V if slightly unstable.