Firesnake Posted December 8, 2013 Share Posted December 8, 2013 A year ago I have purchased 2x8GB of 1866 MHz CL9 Dominator Platinum (CMD16GX3M2A1866C9). Now I have bought again the same amount and exactly the same type of memory to fill up all the slots. I have realised that the version numbers differ in case of the two sets. The older one has a version number of ver5.29 and the new one has ver3.24. Does it have any drawbacks to have different versions of the same kind of memory? Shall I send back and exchange the new pack for a full 4x8GB of CL9 1866Mhz four piece pack which will have the same version number and sell my old pair of 1866s? Thank you. Link to comment Share on other sites More sharing options...
peanutz94 Posted December 8, 2013 Share Posted December 8, 2013 Corsair does not suggest or support mixing or using multiple kits, even if they were the exact same part number , version number, ect. There is just no way to say if any two random kits are going to work together or not. All you can do is try it. It's always best to replace and never add. Link to comment Share on other sites More sharing options...
Yellowbeard Posted December 8, 2013 Share Posted December 8, 2013 The only way to know for sure is to try them and test them. Link to comment Share on other sites More sharing options...
Firesnake Posted December 9, 2013 Author Share Posted December 9, 2013 Thank you guys for the answers. Could you please explain the reason why does two pairs of the same memories (both 1866, CL9), but different versions (one is 5.29, which uses Hynix mem chips, other is 3.24, which uses Micron mem chips), could result in incompatibility issues in a dual channel setup? I have thought this only matters in case of quad channel setups. I mean the memories should be accessed differently in case of different chips (but same latency, same speed) by the memory controller? Or what is the mechanic that could result in incompatibility. I note that I have a Sabertooth Z77 with 3770k. I have still not opened the memory package, since I can still send it back easily unopened. I open it if anyone tells me some empirical results (the probability), whether there is a small or a big chance that my two sets of memories will work together. I will not blame anybody if they are not working, just please share your experiences whether they work most of the cases or not. Thank you. Link to comment Share on other sites More sharing options...
peanutz94 Posted December 9, 2013 Share Posted December 9, 2013 Could you please explain the reason why does two pairs of the same memories (both 1866, CL9), but different versions (one is 5.29, which uses Hynix mem chips, other is 3.24, which uses Micron mem chips), could result in incompatibility issues in a dual channel setup? Sure, different versions are different memory chips all together. They just dont play well sometimes because of tiny variances in the chips. You take the same risk even with identical versions, one small difference between the two sets could cause all kinds of issues. This is why Corsair can only guarantee one kit per MB to be 100% compatible because all the modules in the kit would have been tested together to be sure they all run the same. Link to comment Share on other sites More sharing options...
Firesnake Posted December 9, 2013 Author Share Posted December 9, 2013 Sure, different versions are different memory chips all together. They just dont play well sometimes because of tiny variances in the chips. You take the same risk even with identical versions, one small difference between the two sets could cause all kinds of issues. This is why Corsair can only guarantee one kit per MB to be 100% compatible because all the modules in the kit would have been tested together to be sure they all run the same. Thank you. What could be the symptoms of "not playing well together"? Does it mean that they do not function at all at their rated speed and latency, or that they are not guaranteed to overclock further than their rated speed and latency (i.e. the slower chips limit the overall overclockability)? Link to comment Share on other sites More sharing options...
peanutz94 Posted December 9, 2013 Share Posted December 9, 2013 Does it mean that they do not function at all at their rated speed and latency, or that they are not guaranteed to overclock further than their rated speed and latency (i.e. the slower chips limit the overall overclockability)? Reply With Quote Could be any one of those. Link to comment Share on other sites More sharing options...
Firesnake Posted December 9, 2013 Author Share Posted December 9, 2013 and what is the probability of "not playing well together"? I want to know it just before I open the packaging and test them :) (Probably the shop won't exchange them for me if I open the package.) Thank you. Link to comment Share on other sites More sharing options...
peanutz94 Posted December 10, 2013 Share Posted December 10, 2013 and what is the probability of "not playing well together"? 'm sorry, there is just no way to answer that. All you can do is try it. Link to comment Share on other sites More sharing options...
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