ASUS P9X79 - RAM speed question

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MegaTheJohny

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May 8, 2012
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Hey guys, I am planing to get ASUS P9x79, and Gskill RAM 2133 speed (maybe try to OC RAM later on). Does this board support this ram, since it's not OC yet ?
Specifiaction for ASUS P9X79 RAM support is:
8 x DIMM, Max. 64GB, DDR3 2400(O.C.)/2133(O.C.)/1866/1600/1333/1066 MHz Non-ECC, Un-buffered Memory

what does this )/2133(O.C.) mean? please someone explain. Don't want to buy RAM 2133 regular speed and not being able to use it.

 
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Tradesman1

Tradesman1

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Jun 5, 2013
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While you haven't listed the set, i.e. there's Ripjaws, Ripjaws X and Ripjaws Z, and they come in a variey of sets ranging from 4-64GB and a variety of CLs 9-11, the good news is all the GSkill Ripjaws 2133 sets should work fine with the P9X79 - would suggest a 4x4GB or 4x8GB set to enable the quad channel available, and preferably in a 2133/9 set....Order of preference of the models would be Ripjaws Z, then Ripjaws X

On the 2133(OC), it indicates that to run the sticks at 2133 an OC of the CPU may be required
 
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MegaTheJohny

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May 8, 2012
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ty for your fast answer.
I was planing to get RipjawsZ 2133/11 with 1.6 V (4x4 GB) and than upgrade one more set (same 4x4GB) later on if needed, but Ripjaws Z 2113/9 has 1.65v. Is 1.65V option still safe and under warrany ? (with XMP profiles)
 
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Tradesman1

Tradesman1

Legenda in Aeternum
Jun 5, 2013
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The 2133/9 sets are perfectly safe, in fact I'm running the 32GB set of 2133/9 on my older Sandy Bridge rig....If thinking 32GB would suggest getting it all at once if possible, mixing sets, even another set of the same exact model can be problematic...otherwise it's hit or miss if they'll play together and will have to be set up manually as the XMP settings are programmed for the individual set (4x4) and the advanced timings will be different if running 8 sticks opposed to 4
 
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raja@asus

raja@asus

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Sep 28, 2011
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The reason the (OC) suffix is used in our materials is to inform the end-user that DDR3-2133 is an overclocked configuration of the memory controller. Most platforms support DDR3-1600 maximum. The exception is Ivy-E which supports up to DDR3-1866 in one DIMM per channel format. There are often CAS latency and CAS Write latency stipulations to these frequencies as well. The term supported in this context refers to a DRAM frequency and timing set that can be run at stock processor voltages.

Overclocked configurations may require over-voltage and timing adjustments by the end-user to get stable. The goal of the OC suffix is therefore to inform the end-user that it may not be a plug-and-play configuration.
 
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