kevinc Posted October 11, 2010 Share Posted October 11, 2010 I purchased a twin kit of 2x2GB 6400C5 modules. Either module tested by itself will pass Memtest. When run together, however, even in single channel, a bit failure always occurs at 0x00004000. I thought that small differences in timing would only affect dual channel operation. But in either case this matched pair obviously isn't. I have a couple of questions on how to read the other Memtest results. If I place the modules in a single channel, and the errors occur above the 2GB boundary, does that mean the defect must be in the second module? I would assume yes, from an assumption that memory addresses are allocated in linear sequence. If I am using dual channel, and the errors occur above the 2GB boundary, does that mean the defect must be in the second module? I really have no idea how dual channel improves bandwidth... is it more comparable to multithreading or to striping? Link to comment Share on other sites More sharing options...
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