Jump to content
Corsair Community

Using CM3X1024-1333C9DHX v1.1 and v1.2 together


Recommended Posts

I'm having trouble getting my system to post consistently (i.e. more than once out of a dozen attempts) with 2 sticks of CM3X1024-1333C9DHX v1.1 and 2 sticks of v1.2. I manually set the voltage to 1.6v and the timing to 9-9-9-24. The frequency is set to 1333. Any set of 2 sticks works fine, even if they don't match. The newer set gets detected at 1066 MHz and more aggressive timings, but I don't know if that has anything to do with it.


I would exchange the v1.1 set for v1.2, but I purchased them some time ago and already received a rebate.


Any ideas?

Link to comment
Share on other sites

The only memory Corsair supports in a four DRAM slot population is their Quad kits. This does not mean two dual kits or even worse two dual kits of different versions will not work together, just that you have no recourse to RMA Corsair if they do not work together. If there are problems with the DRAM modules, they are still supported via lifetime warranty, but that is for physical defects and errors in a two stick kit mode. Matched Quad sets are highly binned modules for a four slot population. The Dual sets are tested as a kit, not a Quad and warranted as a dual kit, not a Quad setup. You need to Memtest them as Kits (2 modules, not as a four DRAM slot population). If they fail as a kit or singly, then you have RMA. Keep in mind that there is no support for mixing and matching different versions of DRAM either since different version are of different fabrications and/or manufacturers. They might work, they might not work, but you have no support if they do not work.


You are advised to drop the bandwidth to 1066Mhz and raise the Northbridge/MCH Memory Controller +.2v.


Please research this thread:




There is a limitation of the On Motherboard (Intel) memory controller or On CPU (AMD, Intel i7) and a population of all four banks at the full speed of a two bank run. This limitation is across the board with both AMD and Intel chipset based boards, DDR, DDR2 and DDR3.


Keep in mind that often issues can arise in the longer term even though you have shorter term stability. The issues seldom damage the DRAM unless you raise the DRAM voltage too high. They damage the on CPU (AMD) memory controller which has a harder time keeping up with the demands of a four DRAM slot population being run as fast as a two DRAM slot population.


Download Memtest86+ V2.11 from--->

and extract the ISO image. Burn the ISO image to an CD-ROM disk.

Download CPU-z from

Insert a single stick of DRAM in your board. Enter BIOS and set the DRAM to 1066Mhz and the MCH voltage +.2v. Shut the system down, insert the other three sticks and boot to the memtest CD allowing for two full passes. If you pass, enter Windows and post a screenshot of your CPU-z CPU, Memory and SPD tabs. Please post all four of the SPD tabs, one for each module.

Link to comment
Share on other sites


This topic is now archived and is closed to further replies.

  • Create New...