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Asus striker 2 extreme and 8 GB ...


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Hi to all,I now have 2x2GB (CM3X2G1333C9) and I want to limit my mobo's max memory with 8GB totally.My cpu (E8600) is running at 4.G,1600 fsb so I want to use 1600mem if it's possible.To find another same 2x2GB kit is not an option anymore,I know so I want to buy one of these 2x4GB kits :


1) Corsair Vengeance DDR3- 1600 8 GB(2x4GB), (CMZ8GX3M2A1600C9]

(black,blue,red do they have any actual difference?Please tell me)


2) Corsair Vengeance DDR3-1866 8GB(2 x 4GB), (CMZ8GX3M2A1866C9R)

this kit is suggested in Corsair's Memory Finder,why 1866 and not 1600..?


I know also after reading a lot posts of users having many problems with this mobo and its memory controller but many of you here found some compatible solutions.

I need your help guys,and from you RAMGUY also because here in Greece shops wont take back mem kits after exiting their door...(neither internet shops)!


Thank you in advance.

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I know this motherboard is some years old but please -especially you Guru of the forum RAMGUY- clear my confussed thoughts of the suggested mem kits in your MEMORY FINDER and please give me some answers so I'll be able to buy more stuff from Cosrsair that I need.



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I also have a board with X48 controller ( DX48BT2 ) and see those modules CMZ8GX3M2A1866C9R in compatibility list.


Have you @ Greekbiker, tried 4Gb modules with your board, while as far as I read X48 controller should support only


DIMM Capacity: 2Gb

DRAM Tech: 1Gb

DRAM Org: 128M x 8


and I wonder if those modules are actual right on compatibility list either for ASUS Striker 2 Extreme or Intel DX48BT2

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I can partialy add some more info since I got a hand on CMZ8GX3M2A1866C9 modules which are for ® at the end different from those which were in compat. list.


It was tested on X48 mobo actualy on Intel DX48BT2.


I was able to start the system with 2x 4Gb RAM @ 1333 Mhz and it has passed MemTest








So @ 1333 Mhz apparently there is no problem but was unable to start the system @1600 Mhz, could be because of 1866 Mhz since it does not have XMP profile for 1600 Mhz and manualy set to 1600 Mhz did not work.


JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency

JEDEC #1 6.0-6-6-16-23 @ 444 MHz

JEDEC #2 7.0-7-7-19-27 @ 518 MHz

JEDEC #3 8.0-8-8-22-30 @ 592 MHz

JEDEC #4 9.0-9-9-24-34 @ 666 MHz


XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)

XMP #1 6.0-7-6-18-32-2T @ 622 MHz (1.500 Volts)

XMP #2 9.0-10-9-27-48-2T @ 933 MHz (1.500 Volts)


Question remains would this modules run @ 1600 Mhz on X48 chipset and would Vengance modules be realy appropriate for running on this boards since XMP Voltages are 1.5 V.


How much this voltage could be bumped if if not much ( enough for an old X48 MCH )

should not be better choice to use Dominator CMP8GX3M2A1600C9


I'd really appritiate an answer on this two questions if someone knows it before I go buying either CMZ8GX3M2A1600C9 or CMP8GX3M2A1600C9 modules.


regrds, Kyoto




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  • Corsair Employees

I am sorry but those modules were removed from the list as it was a mistake they were listed.

Ram Guy

The Intel X38, and X48 chipsets only support memory made with 128 By 8 memory IC's so our Vengeance modules are not compatible with any of these older chipsets and they will only support 2.0 Gig modules made with 128 By 8 memory IC's according to the Intel White papers for the chipsets.


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So it was more of a coincidence that (2x4Gb) CMZ8GX3M2A1866C9 run @ 1333 Mhz on Intel DX48BT2 which I tested today ?


I tested them with MemTest and run a PC for quite some time until I have to return it to the owner.


Thou could not overclock them to 1600 Mhz.


Intel Note: The ability to support greater than the largest memory capacity is subject to availability of higher density memory devices.


I would understand this that memory density is greater than 1 Gb ( 128/x8 ) since White Sheet from intel for X48 was printed before first 4Gb modules

come to see the light.


But apparently I will be again one to test since I just ordered Dominator 2 x 4Gb for my DX48BT2 :sigh!:

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Kyoto we don't have the same mobos so I can't help you...


RAMGUY I don't know why you wrote that..:"You cannot run the memory frequency faster than the CPU FSB when all four memory slots are filled and you may need to run the memory at the next lower speed grade."


I just did a simple question:will I be able to use the 8GB ( DDR3, 1600 MHz, Set: 2 x 4096 MB) aka CMZ8GX3M2A1600C9 on my striker 2 extreme or not?

I never said to ADD them with any other mem kit,

I never said running mem beyond cpu FSB,

I never said to use 4 sticks in my m/b


I want ONE dual channel kit(only two sticks I mean) of 8GB memory running at 1600,EQUAL SPEED with my CPU(FSB 1600).


And finally: in Corsair's Memory Finder tool (http://www.corsair.com/learn_n_explore/) you had more kits compatible with STRIKER 2 EXTREME and you left only a few.Suddenly no more 8GB@1600 support ???? Is this final and official from Corsair labs???

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Ramguy for my Asus Striker 2 extreme...please,

if I buy a 8GB 1600Mhz dual channel kit (ie this CMZ8GX3M2A1600C9)

if they won't run at 1600 then if I underclock them at 1333 they will work,right?


Thanks in advance..


I'm still waiting an answer before I buy an 8GB kit,please clear my thoughts so I can benefit from max capacity of this motherboard...


Is there ANY kit at 1600Mhz(8GB..) that will work?

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Guys I do not wish to troll or anything, but RAM guy is correct. The X48 has a chipset limitation which officially only supports 2GB per DIMM bank. (They addressed this with the P45 chipset).


At the time Intel's white paper was published I believe that 1GB modules were the norm and 2GB were tested by Intel to work on paper, but I believe that it is only the more modern lower voltage (CMX8GX3M4A1600C9 for example) 2GB modules that play nicely with X48 if you are looking to run 8GB.


nForce series boards did not have the 1600Mhz limitation that the X48 board has. Again if you are running an X48 motherboard if you wish to have 8GB you will need to realise that 1333Mhz is the only officially supported RAM speed. You might have luck running higher than this, but I guess it will require significant tweaking. (I managed to pass memtest for more than 2 hours @ 1600Mhz CL9 8GB on my Rampage Extreme, but the system was not stable, I could not really be bothered to pump more voltage into things as the NB temperature was getting quite hot so I conceded defeat and decided to stick to the Intel White paper).


BTW if you are running 8GB I suggest you also set your command rate to 2T/2N as this will greatly enhance stability.


I do not know what else to say other than I am curious to see what results you have with 4GB modules, and that I wish you the best of luck in obtaining that sort after system stability.



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JohnZS thanks for the reply but your m/b is a x48 chipset so not same with mine.My cousin built an new pc with Corsair 8GB(2x4GB kit) DDR3 1600C8 so I'll try them and see if I will be able to run them equal with my oc'ed e8600@1600 fsb.Trying and testing is the best walkthrough for everything..so...I will post my report when done...
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Ok,I tried sith no luck to run 2x4GB...,true the max GB per slot is only 2 so..

I can't find anymore this old mem kit I allready have ( cm3x2g1333 -2x2GB ) to add another one for 8GB right? Is there a kit that will be compatible with mine or I can only buy a new one as RamGuy suggested only at 1333..

(no luck for any kit at 1600mhz 4x2GB right Ramguy??)


I see that this newer mem kits ( CMX8GX3M4A1333C9 - 4x2GB ) run at 1,65V.Should I force a little bit more v ?

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You can find used stuff on ebay. I couldn't find any new kits. Your best bet would be to replace all of your memory instead of adding to what you have anyway. Mixing two kits can cause more trouble than it's worth. That and you are guaranteed that all sticks will be matched with the other sticks in that kit
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  • Corsair Employees


The Nvidia Chipset usually follows Intel for memory support and the information I can find suggest it will only support 256M X 8 memory IC for Nvidia 790 Chipsets. Which translates to 2.0 Gig modules made with 2 ranks of 8 memory IC's. However, new modules like our vengeance modules can be made with 512 Meg X 8 memory IC's and if so would not be compatible with that Chipset.

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Thanks RamGuy.

I check Asus forum about this motheboard and some users have successfully installed and ruuning(for months I mean) some 4GB mem sticks but the most important thing is that this m/b needs more voltage to mem controller meaning ~1.8 something that newer kits(like Vengeance) with low voltage don't accept.


So my best option is a kit that can hold 1.8 voltage(max)..If I'm not wrong the 1.65 mem kits have no problem with 1.8 running 24/7.

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Kyoto How your new mem kit goes? At 1600 or 1333 ?


This RAM ( mine ) is on sale on e-bay. It works at 1600 Mhz BUT when it starts to crash than it is hard to control.


"This driver is mismanaging system PTEs" so totaly uncompatible with X48 controller."


Verdict: Tested and in White Papers


X48 Chipeset DOES NOT support 4 Gb modules. :mad:


Actualy my whole PC has gone for sale. :laughing:

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  • 2 weeks later...

Successfully installed 8GB on this motherboard running linked with cpu at 1600Mhz today!


M/b : Asus striker II extreme (Air cooled, Nb 1.5V , Sb 1.5V)

cpu : E8600 4 Ghz @1600Mhz ( default 3.33Ghz Air cooled with Tuniq Tower)

Memory kit : 4x2GB XMS3 @1600Mhz (8GB Dual ch. CMX8GX3M41600C9)

Mem Settings : 9-9-9-24 2T (all other AUTO)

Mem Voltage : 1,62 (real V 1,68)


No problems running games,benchmarks so far.If any I will let you know.


Ramguy after some time of use maybe you will be able to know for sure that these kit can be a perfect choice for this motherboard.

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