kabanan Posted May 16, 2005 Share Posted May 16, 2005 Abit AN7 + XMS3205v1.1 I just can't get my CMX256A-3200LL memory modules to work with my Abit AN7. They work great on my Epox 8rda+ so its not a memory error or fault. The memory is labeled as 2-2-2-6 and when I set BIOS to use By SPD thats the settings I get, but they dont work. My local computershop where I bought the AN7 said I must reduce the latencies to 2-3-2-6 since that is what you at Corsair recommend. So my question is: what latencies am I to expect from my memory? Should I use the lower ones even if its possible to use the higher ones in a different motherboard? The shop says I cant exhange my board for a different one. Info on the memory: CMX256A-3200LL, XMS3205v1.1, 0306039 XMS3200, 256MB, 400MHz, 2226-T1 The voltage is 2.7 volt. Increasing it doesnt help. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted May 16, 2005 Corsair Employee Share Posted May 16, 2005 I would suggest setting the Rass to Cass to "3" and test the modules with http://www.memtest.org. Link to comment Share on other sites More sharing options...
kabanan Posted May 16, 2005 Author Share Posted May 16, 2005 I would suggest setting the Rass to Cass to "3" and test the modules with http://www.memtest.org. With tRCD set to 3 the board and memory seems to work. But I feel somewhat cheated since I once payed a lot of money to have the best performing memory there is around and now I have to manually "downgrade" them just because a particular motherboard wont work with them. Other AN7 owners dont seem to have this problem, but since my dealer wont accept this as a RMA reason I'm stuck. :[pouts: When and why did the recommendation change from 2-2-2-6 to 2-3-2-6? Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted May 16, 2005 Corsair Employee Share Posted May 16, 2005 Because some MB's just would not run well with the Rass to Cass set to "2". And can you tell me the complete part# and revision of your modules? Link to comment Share on other sites More sharing options...
kabanan Posted May 16, 2005 Author Share Posted May 16, 2005 Because some MB's just would not run well with the Rass to Cass set to "2". And can you tell me the complete part# and revision of your modules? This is all thats written on the memory modules sticker Top row: CMX256A-3200LL, XMS3205v1.1, 0306039 Bottom row: XMS3200, 256MB, 400MHz, 2226-T1 Couldnt find any more info using Everest... ie no serial. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted May 17, 2005 Corsair Employee Share Posted May 17, 2005 You can test them in a Nforce 2 chipset or an Intel I875 based chipset and they will likely run at Cass 2-2-2-6 at 2.75 Volts. But we can try replacing them as well, but the modules you would get now would be set to Cass 2-3-2-6 and that was changed at the beginning of last year. 01 of 2004. Link to comment Share on other sites More sharing options...
kabanan Posted May 17, 2005 Author Share Posted May 17, 2005 No need to change the RAM's. It was a heat related problem on the AN7. I removed the stock heatsink and noticed that the NB-chip was so concave that it only made contact in two corners and the silicone paste had turned black at those points. Since my dealer refused the RMA I lapped the NB-chip and mounted a huge copper cooler with 60mm fan. Now it runs smoothly with 2-2-2-6. :biggrin: Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted May 17, 2005 Corsair Employee Share Posted May 17, 2005 Good news then and thanks for letting us know. Link to comment Share on other sites More sharing options...
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