Best memory for Asus Rampage III Extreme

Hi, I am building a new system which consists in part of an Asus Rampage III Extreme and Intel Core i7-980X processor. Which is the fastest compatible memory I can use?

I am thinking of being able to install a minimum of 6GB, but would like the option of going for 12GB or more in a triple channel configuration.

Obviously I would go for a minimum of 1600Mhz memory, but the board supports up to 2200Mhz, so, would like to consider using the higher frequencies at 1.65v (to at least keep warranty with Intel).

There are many makes and as the Mhz goes up, so the timing goes down. I also hear this board is a little fussy about certain memory configs (some corsair dominator does not work according to feedback on some product sites, maybe others), so need to make sure what I buy will work.

There is an "approved" QVL list from Asus at http://vip.asus.com/forum/view.aspx?board_id=1&model=Rampage+III+Extreme&id=20100430143411765&page=1&SLanguage=en-us but which is really the best? It will not cover any newer memory since the release of the pdf.

I may want to overclock a little, but not go overboard and require water cooling etc for the case.

Notice that the user manual (same web page) says anything above 1600Mhz is over-clocked, but not sure that means I have to overclock the processor to use the faster frequency if the memory supports that by default.

Anyone got advice or experience on this config?

Spent some days thinking about this, and no real conclusion so would really appreciate a push in the right direction.

Thanks in advance.
37 answers Last reply
More about best memory asus rampage extreme
  1. While the Certified {QVL} list is an excellent observation on your part, in addition is the RAM Mfg's Tested list, and if needed the RAM Mfg's support ticket to confirm 'compatible' RAM.

    Tri Channel is the 'most efficient' and if you need 12GB then I would recommend 3X4GB over 6X2GB. Yes, I would not recommend any RAM slower than 1600 MHz, or 2000 MHz if you plan to OC.

    Tested Corsair list - http://www.corsair.com/configurator/product_results.aspx?id=1493037

    Comparison Module #1: Mushkin Redline 996805 6-8-6-24 1600MHz
    Comparison Module #2: G.Skill Pi Series 7-8-7-24 1600MHz
    Comparison Module #3: Mushkin 998687 8-9-8-24 1866MHz
    Comparison Module #4: Corsair Dominator TR3X6G1600C8D 8-8-8-24 1600MHz
    Comparison Module #5: Kingston HyperX T1 9-9-9-27 1600MHz
    Comparison Module #6: Mushkin Blackline 998677B 7-7-7-20 1333MHz
    Comparison Module #7: Patriot Viper II Sector 7 9-9-9-27 1800MHz
    CORSAIR DOMINATOR-GT 12GB (3 x 4GB) DDR3 2000 (PC3 16000) Fan CMT12GX3M3A2000C9 http://www.newegg.com/Product/Product.aspx?Item=N82E16820145329

    CORSAIR DOMINATOR 6GB (3 x 2GB) DDR3 1600 (PC3 12800) TR3X6G1600C8D http://www.newegg.com/Product/Product.aspx?Item=N82E16820145224


  2. Hi Jaquith,

    Thanks for your prompt advice.

    I feel going for 3x4GB is the best idea as I still have more room for expansion as long as the timings remain good. 1600Mhz seems a bit slow these days and 2200Mhz has very few options out there, so two configurations caught my interest:

    CMT12GX3M3A2000C9 - DDR3-2000 (DominatorGT-16000 9-10-9-27*XMP*3CH)
    and
    CMX12GX3M3A2000C9 - DDR3-2000 (XMS3-16000C9) Latency 9-9-9-24

    I find it strange that the 2nd item has better latency ratings than the Dominator GT, but the description is different and it does not mention XMP or 3CH which I presume is triple channel. Which would in theory be faster?

    Also, where did you get that graph from and can I compare the two above?

    Cheers.
  3. My vote -> CMP12GX3M3A1600C9 My 2nd vote -> CMT12GX3M3A2000C9

    Reason, unless you are going to OC at least 4+GHz the 2000 MHz will require {8/10} under-clocking to remain stable; that's the catch-22 of super-fast RAM.

    People having problems with CMX12GX3M3A2000C9 are typically caught by the allure of 'XMP' that RAM is a mis-match for what you 'need' it to do. The reviewers having issue with that RAM are 1. Using the XMP where they should not, and 2. lack of OC CPU creates a huge sys bus disparity to cause the instability. Also, that RAM will run hot.
  4. So, if I get your point, it is better to get slower memory, have a stable system, and overclock when you feel the need. Instead of faster memory, which is unstable at default CPU clocking, which can handle the faster speed?

    To set expectations, I would probably want to go for 4Ghz at some point (have a decent Silverstone case and Thermaltake Frio CPU fan) once I am sure my system is stable.
  5. 4GHz OC -> CMT12GX3M3A2000C9 My 2nd vote -> CMP12GX3M3A1600C9

    Not exactly, the 2000 MHz Corsair's RAM {most 2000 MHz RAM} will run with BCLK/CPU Multiplier @ stock, just don't set the Memory Multiplier to 15 / {DDR3 2000MHz}. Frequently, the disparity 'can' cause some instability; instead run the 2000 MHz RAM @ 1600 MHz {under clocked/rated} or maybe 1800 MHz if running CPU @ stock. Otherwise if the BCLK = 200 MHz then fine set the Memory Multiplier = 10 / {DDR3 2000MHz}with a CPU Multiplier = 20 - it will do it's job very well.

    Stable is never round numbers, and the Thermaltake Frio is fine for 4GHz. Silverstone makes very good cases; just get one with top venting.
  6. OK, sounds like the CMT12GX3M3A2000C9 is the way to go for me. I have the TJ07B-W case, so 6 fans should be enough ;-)

    Shame the memory is out of stock everywhere!

    Thanks for your help.
  7. SST-TJ07B-W http://www.silverstonetek.com/products/p_spec.php?pno=tj07&area=usa
    Interesting pulling the air from bottom-up, and I like the MOBO tray. What about dust and doesn't look like these's a place for a radiator {HDD/PSU}.

    ETA: Newegg 11/23/2010 -> CMT12GX3M3A2000C9
  8. Just need to have Dyson at the ready! PSU goes at the bottom.
  9. Dunc-TT said:
    PSU goes at the bottom.

    That's my point {HDD/PSU} @ bottom + slide-out ; so where can you put a radiator? Looks the tray slide blocks the top placement and the {HDD/PSU} takes up the bottom.

    I know you're air cooling; I'm just observing, curious and NOT criticizing; I like SilverStone cases.
  10. Radiator?
  11. Dunc-TT said:
    Radiator?

    from above -> I know you're air cooling; I'm just observing, curious...

    I'm just wondering?? If there'a a place to install a radiator, for water cooling - if you or anyone ever wanted one.
  12. Hmmm, link does not work - HTTP 403 forbidden.

    I think there is a gap at the top (where the PSU would normally be) for water cooling.

    See http://www.techpowerup.com/reviews/Silverstone/Temjin_TJ07/3.html

    Just saw this memory article today:
    http://gadgetsarea.blogspot.com/2009/05/corsair-dominator-gt-is-fastest-intel.html

    Would the 8-8-8-24 timing really make a difference for games? No doubt it will be expensive and hard to get.
  13. The Corsair's OC extremely well, as I stated, and CAS 8 2000 MHz is crazy fast -- put the two together and 8+ FPS over it's 1600 MHz cousins. I would 'guess' that translates into ~6 CAS at 1600 MHz.

    That article was written in May 2009, and a lot has changed since then. Also, you need RAM that you KNOW will work with your MOBO. The RAM is ALMOST double the price - which comes to BALANCE.

    BALANCE is when ALL components are ~evenly matched and compliment each other. So the CAS 8 2000 makes sense on a 3+WAY SLI/CF with an i7 980X OC @ 4.4+GHz - or a $4,500+ rig.
  14. i have the ramapage 3 extreme and i have a set of the CMP12GX3M3A1600C9 im rma'ing it because it wont go above 1333 probably gonna go back to OCZ this is the first time a corsair set has ever failed me :(
  15. CMT12GX3M3A2000C9 => OP
    CMP12GX3M3A1600C9 => Wesley-mcg-

    I'm still not convinced it's the RAM, could just as easily be the MOBO. I've build 27 rigs in the past 12 months, and not once did I have a bad Corsair. Wesley-mcg- 's Corsair is running just not OC; MOBO flagged a DRAM led. Verdict is still out, nothing is 100%, but bad Corsairs are very rare in my posts.
  16. Jaquith,

    I would like to ask you a question, please, since it is obvious you have WAY more knowledge than me in dealing with RAM. I have basically the same situation as the previous post: I purchased the Corsair Dominator set CMP12GX3M3A1600C9 (3 x 4GB @ 1600MHz) to use with my i7 980X and the Rampage III Extreme. If I activate the XMP it will not boot and tell me that the Overclock Failed! What should I do in order to have my memory run @ 1600MHz? I have a Megahalems with a Delta 3400RPM fan in it...I'm ready to change anything that needs changing...I'm also thinking on taking the CPU to at least 4 GHz.

    Any suggestion will be greatly appreciated. Thank you!
  17. The BIOS MUST fully recognize the X.M.P. data on the RAM IF it does not for ANY reason you can easily get post failure and/or 'odd' behavior - therefore I NEVER recommend the X.M.P. setting for ANY MOBO. Also, if you read the QVL carefully it can state the number of {DIMM} sticks supported. Further, you cannot OC the RAM beyond it rated speed.

    I OC, I too have had this situation with a Gigabyte MOBO and I've seen it with countless MOBOs and 'X.M.P.' RAM - every time the RAM goes from X.M.P. -> Manually OC the problems are solved. X.M.P. is by far NOT viable solution. In addition, a BIOS upgrade may be required for the X.M.P. to work, and I rarely recommend BIOS flashes and will NEVER recommend one to solve X.M.P.

    Further, if manually setting the RAM fails then Memtest and test the DIMM slots if possible; you 'might' have a bad stick/DIMM slot a/k/a bad MOBO.
  18. Thank you. Since I'm new to the tweak-your-BIOS field, what are the Vs that need tweaking in order to get your MEM to work as specified? WHat are your recommendations in terms of numbers and in what fields?
  19. Please start a NEW Post; I have a 'feeling' it will be VERY HELPFUL for others.

    AI Tweaker:
    AI Overclocker Tuner {Auto} -> {Manual}
    DRAM Frequency {Auto} -> {DDR3-1600MHz}**
    DRAM Timing Control hit enter -> enter ALL of your timings 9-9-9-24
    Timing Mode {Auto} -> 2N -> same as 2T
    ...
    DRAM Bus Volatge {Auto} -> 1.6v
    QPI/DRAM Core Voltage {Auto} -> 1.4v or less [stable]

    Save & Exit

    ** assumes an unlocked CPU.

    ALSO Read -> http://i4memory.com/f55/intel-core-i7-980x-guide-optimal-cpu-vtt-memory-voltage-voltages-uncore-memory-frequency-ratios-23430/

    VERY Helpful OC Sheet -> https://spreadsheets.google.com/ccc?key=0AiqWJwYxhJqKdGh5TkVGcW1FZmpGaHg4c1lYT2twdUE&hl=en#gid=0
  20. Jaquith,

    Thank you for the help. I did it but it still gave me an Overclocking Failed! message! I honestly don't know what else to do except changing the memory and trying with a different one...I'm thinking 2000MHz...if that doesn't work, then I will RMA the CPU.
  21. I've seen this problem before, it's seems to be more of a MOBO issue. You can Google and see what I mean.
  22. So you think I should RMA the MOBO instead of the CPU or the memory? I called ASUS and they told me that if the other Memory did not work with the XMP then I should request a new CPU.
  23. I wouldn't argue with ASUS. Here's the PITA problem - you need ALL 3 to behave otherwise it's a crap shoot. The MOBO and it's BIOS is responsible to send/receive data, the RAM has to work properly to store the info, and the CPU has the memory controller integrated to 'control' this circus.

    It's seems logical that if the CPU has an issue then clearly you're stuck. It too seems VERY VERY odd to have (2) posters with the SAME EXACT issue.

    The 'OC' of the RAM is indeed hinged upon the Memory Controller to 'accept' the speed of the RAM whatever it is. Clearly the RAM 'functions' and clearly the MOBO 'functions' and to some degree so does the CPU. --- So you see 'my' take on this.

    I have seen, Google for yourself, ALL of the components WORK as advertised. I rarly see Corsair's act up and I rarely see ASUS act up. ALSO, if the CPU pins are NOT fully connected 100% {see it all the time with P55/1156} then you can have all sort of oddball issues including 'missing memory'.

    Therefore prior to sending back the CPU; remove it check the pins with a magnifying glass {alignments} and -- cannot hurt remount the CPU -- let me/us know!

    Good Luck!
  24. Roger. It is very weird that I can get the RAM to 1593 MHz, but as soon as you go even ONE, yes ONE MHz over 1600 it will immediately not boot and show the infamous "Overclocking Failed!" message. Any explanation on why it can go almost to, BUT not to or over 1600 MHz?? Wierd! I will check the CPU today, I have already started the RMA process for the memory on Newegg so I will probably do that too just in case. If the new memory doesn't work with the XMP profile activated, then I will shoot for a CPU RMA, and then a MOBO RMA in that order. Man, this is a headache!
  25. Keep in mind the BCLK speed varies all the time, it's NORMAL, and ±10 MHz is NOTHING.

    Also, there's rounding BCLK 133.33333 ± 3; 130 X 12 = 1560 ; 136 X 12 = 1632 ; therefore any number between 1560~1632 MHz is a nothing!

    Duh, just noticed {I get CONFUSED with (2) people SAME POST}; is your RAM = CMT12GX3M3A2000C9 a/k/a 2000 MHz??

    REMEMBER -> "Reason, unless you are going to OC at least 4+GHz the 2000 MHz will require {8/10} under-clocking to remain stable; that's the catch-22 of super-fast RAM. "

    You need a BCLK of 180~200 to use the 2000 MHz RAM. Please confirm.
  26. No, my RAM is CMP12GX3M3A1600C9, which is 3x4GB 1600 MHz Corsair Dominator. I have my bclock at around 155. I did this using ASUS Vpower on WIndows. It seems to be stabel at the moment, but I don't know if I might be using more V than required in some settings.

    Roger about the MHz, the thing that I find wierd is WHY it will fail as soon as it hits 1600 Mhz or a tad over it, but not below!? I want to be able to get my system to 4 GHz, thats all Im asking for, I don't want to go super crazy, just want a reasonable and no-harm OC with my memory at 2000 MHz if I buy that one. You think its possible? I have a i7 980X, R3E, Megahalems w/ Delta 3400 RPM fan (100+ CFM). Please advise.

    Also, I'm considering this memory to replace my current one:
    G. Skill F3-16000CL9T-12GBRM
    Corsair CMT8GX3M2A2000C9 (Newegg ran out of the 12GB kit for this one, so I think I just buy this one and add to it in the future)

    Please advise about the memory selection. I was thinking on trying the G.Skill just to make sure that it is not the memory by trying 2 completely different sets.

    Thank you as always for your great help.
  27. 9.9/10 it's your BIOS settings. What EXACT BIOS settings have you 'changed?' Please list here:
  28. I will do as soon as I get home from work...I can't remember all the settings from memory. Also, any advice on the memory?

    Thank you again. (It will be a while since I can get those settings for you).
  29. The MAJOR Problems with this post is 1600 vs 2000 MHz require (2) COMPLETELY Different Approaches. If you or I make the mistake of confusing one or the other the RESULT is WRONG settings. Therefore, PLEASE open a NEW Post and Private Message me with the link; I will look at it and start from NEW.

    My first assumption is a BIOS setting error.
  30. Just thought I would try to add a comment to give this discussion some closure (from a point of what works to get you up and running). I purchased CMT6GX3M3A2000C8 as it had better timings that the 12GB version and was actually in stock at retailers. It worked fine with the default settings of my mobo (1333Mhz), no CPU overclock. I will play around with the settings to find out what works and certainly would be interested in the best way to approach the CPU+RAM OC for this mobo.
  31. Keep in mind the rated Speed vs running under rated Speed; the CAS ALL change. You will need to contact Corsair via a ticket to determine 'those' timings; as speed decreases so does the CAS:

    Example {not correct, but for illustration} CMT6GX3M3A2000C8:
    2000 MHz 8-9-8-24
    1600 MHz 7-7-7-20 **

    http://forum.corsair.com/forums/showthread.php?t=87341

    A few times a year I do build a rig with 2000 MHz RAM, but when I do I start with the RAM running at 'stock' speeds. Next I determine the OC, I use Koolance, which is typically 4.2~4.6 GHz. Finally, I OC the RAM to ~2000 MHz and adjust the voltage. In my experience I could never get 2000 MHz to post or run at rated until the CPU was OC first. Finally, I would 'tweak' all voltages and BCLK/CPU/etc Multipliers to yield a final stable system. It is NOT a 5 minute affair of throwing-in Googled OC numbers and EVERY setup is entirely different. Meaning (2) identical rigs will need different settings. People who successfully OC are experienced and have a 'feel' that is impossible to state in a post.

    ** http://forum.corsair.com/v3/showthread.php?p=472729
  32. Kind of late reply, but I have something to chip in... I have exact same setup, and went through few chips before I learned what was going on. I have initially purchased Patriot's Viper II 1600Mhz 12GB kit, and could not get it to work at that speed. I've tried so many thing, but with no luck. Then, I found that post on Patriot forum stating lowest bios version works just fine with this memory. So, I downgraded (about 4 builds down to 402), adjusted settings, and it worked right away. None of other bios releases worked. It seems Asus decided to give non-QVL chips no go. I was to order Dominator 2000 kit, but it is not listed on QVL, however, Corsair lists it as compatible. I guess in this case we are free to go to their support, and demand help in setting things up... Anyways, those chips are hard to get, so I settled with Kingston HyperX, which in fact is listed on QVL at 2000Mhz on all 6 dimms... I should have them tomorrow, and will post back with results.
  33. Dunc-TT said:
    Hi Jaquith,

    Thanks for your prompt advice.

    I feel going for 3x4GB is the best idea as I still have more room for expansion as long as the timings remain good. 1600Mhz seems a bit slow these days and 2200Mhz has very few options out there, so two configurations caught my interest:

    CMT12GX3M3A2000C9 - DDR3-2000 (DominatorGT-16000 9-10-9-27*XMP*3CH)
    and
    CMX12GX3M3A2000C9 - DDR3-2000 (XMS3-16000C9) Latency 9-9-9-24

    I find it strange that the 2nd item has better latency ratings than the Dominator GT, but the description is different and it does not mention XMP or 3CH which I presume is triple channel. Which would in theory be faster?

    Also, where did you get that graph from and can I compare the two above?

    Cheers.



    IF YOU CAN AFFORD GET ADATA Plus V2.0 Series 2200MHz 8-8-8-21 PC3 17600 :bounce: , BUT IS VERY PRICEY... :o AND SO FAR IS DUAL CHANNEL RETAIL PKG 2X2GB SO FOR TRIPLE CHANNEL YOU WILL HAVE TO BUY 3X(2X2GB) PKGS FOR ONLY 12GB TOTAL THEY HAVE IT ON AMAZON PART # AX3U2200PB2G8DP2 GOOD LUCK :D
  34. Hello,

    is the ASUS Rampage III Extreme working also with 24GB of memory CMT12GX3M3A2000C9 (2 times the set of 3 modules)? Any catch or something to pay attention to?

    Thanks and regards
    P
  35. This is my first build since my Pentium 4, but will be with the Cool Master HAF X, Case, Asus Rampage III Extreme Black Edition, Intel i7 990X extreme and 24GB of Corsair Dominator-GT CMT12GXM3A2000C9 (says Intel i7processor Extreme Edition compatible). It will include a couple of EVGA NVIDA GeForce GTX 580 Call of Duty Black Ops Special Edition with Fansink included. Will not bother with the rest since this thread is on the Motherboards & Memory. Asus say's the RAM is not on their list but that does not mean that it was or was not tested. Corsair say's that the RAM will work, guess I will find out when I am done and will post. It is far easier for the maker of the RAM to do the testing than the maker of the MB since they want you to buy their RAM. I will hold their feet to the fire when I am done.
  36. Ultimatep said:
    Hello,

    is the ASUS Rampage III Extreme working also with 24GB of memory CMT12GX3M3A2000C9 (2 times the set of 3 modules)? Any catch or something to pay attention to?

    Thanks and regards
    P

    Ultimatep said:
    Hello,

    is the ASUS Rampage III Extreme working also with 24GB of memory CMT12GX3M3A2000C9 (2 times the set of 3 modules)? Any catch or something to pay attention to?

    Thanks and regards
    P


    Yea it does - Ive just installed it yesterday and spent all night trying to see what it can be tweaked into....

    So with Rampage III extreme and intel i7 960 i ended up with following:

    Definitely the most stable situation is when I get to O.C. RAM via O.C.ing cpu...

    Have latest Rampage BIOS. BUT OLDER ONES ARE THE SAME IN THAT PART....

    So, in TWEAKING AREA i tried all possible values, multipliers, voltages etc... And ended up with following...
    I O.C. CPU with its 'automatic' - 3 step option... Went from 3.2 Ghz to 3.6 (it's middle value). - fsb multiplier is x24...
    That step alone upgraded my 24 GB of RAM to 1594 Mhz (i was going for 1600) with automatic rise of qPi/DRAM voltage to 1.4xx mV and dram to 1,6xx mV

    I run battery of benchmarks and tests - and did some manual measuring ( I use it for video editing) - it was stable as can be (still is) - now I am getting ready to try to get even higher - to real OC world!!!!

    Good luck!
    V.
Ask a new question

Read More

Memory Asus Rampage Product