vin_c Posted May 20, 2005 Share Posted May 20, 2005 Hi everyone, Maybe I've done something wrong but: I have already installed 2x256 CMX256A-3200C2PT I just bought 2x CMX512R-3200C2PT to fit with the existing ones. Is there a compatibility problem because the system won't start with these modules ? I just noticed the little difference in A or R in the ref.. ?.. ? Please help, Regards Vin'c Link to comment Share on other sites More sharing options...
vin_c Posted May 20, 2005 Author Share Posted May 20, 2005 Another question : with the actual modules (2x CMX256A-3200C2PT) witch modules will suit the best for timings and all other stuff... My goal is 1.5 Gb... Regards Vin'c Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted May 20, 2005 Corsair Employees Share Posted May 20, 2005 This MB will not support registered memory and the part# CMX512R-3200C2PT would be a registered module. Please ask the reseller if they will swap them for the same part# with out the "R" or "RE" in the part# like Twinx1024-3200C2. In addition, you would need to match the part# and revision of what you have now if you want to add to them. Other I would suggest replacing the existing modules with Twinx2048-3200C2 for best performance. Link to comment Share on other sites More sharing options...
vin_c Posted May 20, 2005 Author Share Posted May 20, 2005 hi, and thanks for your quick response ! If I understood, actually I have 2x256 v1.2 so if I want to add some others, they must be v1.2 ? It may cause problem if i had in the config A1 / B1 - A2 / B2 256v1.2 / 512v2.x - 256v1.2 / 512v2.x And at last, what is the difference between 3200C2 and 3200XL modules ? (quickly, i'm not an expert in memories) Thanks again vincent Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted May 20, 2005 Corsair Employees Share Posted May 20, 2005 Yes, you cannot mix modules and even the same part# but different revisions may cause stability problems. And you can see the different part# description in What does C2, LL, PT, R or RE stand for in the part#? Link to comment Share on other sites More sharing options...
vin_c Posted May 20, 2005 Author Share Posted May 20, 2005 Ok, Last question, i saw on some websites (overclocking ones) that you must specify the timings of the ram on the mother board. Do you think it is necessary or letting the mother board set the auto values is good ? I do not want to overclock anything just set the best defaut values. Thanks again. Vincent Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted May 20, 2005 Corsair Employees Share Posted May 20, 2005 I would set the timings and Frequency manually if you want to try these modules at Cass 2.5-3-3-7 and set the Dim Voltage to 2.8 Volts and set the Frequency at DDR400. Link to comment Share on other sites More sharing options...
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