michael-oc Posted November 28, 2004 Share Posted November 28, 2004 Hi! I have 2x256 Corsair CMX256A-3500C2 in my System. A few weeks ago I bought Corsair CMX512-3200C2 XMS3202 v4.1 1x512 MB. I own a Epox 8rda3+. I tried to achieve 200 FSB with all three modules but I don´t work without errors in memtest regardless of Timings, single/dualchannel or the dimms I place it in. Also tried everything board related, aggressive/optimal. Right now I use these Settings without problems: CPU: Athlon XP Mobile (also tried normal Athlon) FSB 216x11.5 @ 11-2-2-2 Vdimm: 2.85 real V All is prime stable With the third 512 ram I get errors @ 200 FSB with relaxed timings. Aren´t these rams compatible? It doesn´t work with one 256 and the new 512 module either. The 512 ram alone generates no errors so it isn´t faulty. I am disappointed I got these problem with Corsair, spent about 280 € and now it isn´t working! Any suggestions? By the way is there a german support forum? Link to comment Share on other sites More sharing options...
Wired Posted November 28, 2004 Share Posted November 28, 2004 So the 256 work by themselves, and the 512 works by itself right? It's never recommended to combine different part numbers due to them using different ICs. They may work together @ 200 Mhz at looser timings, but it's not guaranteed. Link to comment Share on other sites More sharing options...
michael-oc Posted November 28, 2004 Author Share Posted November 28, 2004 Yes, every module themselve works fine! I thought better stick with another corsair again instead of using another brand. And now I have to sell all three modules in order to get 1 gig working ram. Really nice :( Is there a possibility another corsair ram will surely work with my two 256 and my 8rda3+ ? Link to comment Share on other sites More sharing options...
Wired Posted November 28, 2004 Share Posted November 28, 2004 Another 3500 stick for sure, but they're rare. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted November 29, 2004 Corsair Employees Share Posted November 29, 2004 You might try setting the timings to Cass 2.5-3-3-7 and Disable dual channel mode. However, I would not suggest mixing these 2 module types in a dual channel configuration. Link to comment Share on other sites More sharing options...
michael-oc Posted November 30, 2004 Author Share Posted November 30, 2004 I´m an experienced pc user so singlechannel won´t be an option. Right now I got it working @ 200 FSB 11-3-3-2 That´s way less than before. So I will resell it and never buy expensive ram again. I´ll advice others to buy MDT ram or something equal cheaper. But anyway thanks for your replys! Link to comment Share on other sites More sharing options...
Wired Posted November 30, 2004 Share Posted November 30, 2004 Have you ran any memory bandwidth tests to see what the actual difference is? Link to comment Share on other sites More sharing options...
michael-oc Posted December 1, 2004 Author Share Posted December 1, 2004 The difference between 216 aggressive and 200 relaxed timings aren´t that much, but not acceptable for overclocking. lost about 4 fps in aquamark3 tests and in cs source my fps drop a bit more. This doesn´t anger me but the fact I paid so much money for it. And another mainboard isn´t an option right now! But thx again for your reply, good to see people care about problems here! Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted December 1, 2004 Corsair Employees Share Posted December 1, 2004 LOL, Ok well if you have any more questions please let us know! Link to comment Share on other sites More sharing options...
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