arnoldh Posted January 25, 2013 Share Posted January 25, 2013 I have an ASUS P7H55-M desktop with twin 1GB DDR3 modules 3X1G1333C9 ver 2.3, running on Windows 7 32 bit. I'd like to move to W7 64 bit and increase my memory from 2GB to 6GB. I propose to add one 4GB X4GX3M1A1333C9 module to the existing 2x1GB dual channel modules. Am I correct that I can do this so that the 2x1GB modules continue to operate in dual channel mode? Also, I realise that the 4GB module will be operating in single channel mode. Is it likely that I will in practice lose that much overall PC performance compared with adding 2x2GB modules in dual channel mode (I'm not sure I can find these 2x2GB for sale anyway)? I'm not gaming, and not doing a lot of cpu intensive work, but I am running out of memory sometimes even on 32 bit Windows. So my main aim is to increase my available memory, but I wouldn't want to do that if I'm going to slow down memory access very significantly by adding a single channel module. Link to comment Share on other sites More sharing options...
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