Doom2pro Posted August 5, 2014 Share Posted August 5, 2014 I have an odd issue here, I have two sticks of CMX1024-3200C2 (CL2, PC-3200, 400Mhz, 2.75V paired)... I placed one in Slot 1 and the other in Slot 3 (for Dual Channel support) on an ABit NF7-S2G motherboard with latest BIOS... I get Memtest 86 errors on Test 7, and if I place the two sticks in Slot 1 and Slot 2 (Single channel) I get no Errors on two passes... If I test the sticks individually in Slot 1 or Slot 2, I get no Errors on two passes... However, if I place either stick individually in Slot 3 I get thousands of errors on Test 7. Here is where it gets weird... I have two sticks of Elixr 512MB DDR400 and if I place them in Slot 1 & Slot 3 (Dual Channel) I get no errors on two passes... Most of the errors with the CMX1024-3200C2 pair seem to occour after 512MBs (although I get a few at 21.xMBs)... All on Test #7... I have set the DDR Voltages in the BIOS to 2.8V (BIOS only has increments of 0.1)... I tried everything between 2-3-3-6 to 3-3-3-8 and I still get errors on Test #7 in dual channel... Individually in Slot 1 & Slot 2 I can run them easily at 2-3-3-6 with no errors on two passes. I'm not sure if it's dodgy RAM Modules, a dodgy Chipset, dodgy CPU, or dodgy Motherboard RAM slot... I'm pulling my hair out on this... :confused: Any ideas? Thanks. Link to comment Share on other sites More sharing options...
Administrators Technobeard Posted August 5, 2014 Administrators Share Posted August 5, 2014 Sounds like the memory controller on the motherboard has an issue with large ICs in dual channel mode. I'd suggest testing the memory in a different system to be safe. Link to comment Share on other sites More sharing options...
Doom2pro Posted August 5, 2014 Author Share Posted August 5, 2014 Sounds like the memory controller on the motherboard has an issue with large ICs in dual channel mode. I'd suggest testing the memory in a different system to be safe. Even in single channel mode with one stick installed (As long as the stick is in slot 3) I get errors on Test #7, both sticks fail... But if I put one of the 512MB Elixir sticks in slot 3 (farthest from CPU) I get zero errors on two passes... So it's not exactly about Dual Channel mode, but that one slot doesn't seem to like my CMX1024-3200C2 modules, and since that one slot is required for Dual Channel support, you cannot get both sticks working in Dual Channel. Link to comment Share on other sites More sharing options...
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