markhawker Posted September 24, 2010 Share Posted September 24, 2010 Hi, I have quite an old PC with an ASUS M2N32-SLI motherboard. It has been running happily with 2GB PC-6400 of Corsair memory. I have aquired another 2GB of Corsair memory from a friend which is also PC-6400. When I try to install the four together the PC will either not boot, blue screen or become unstable after Windows boots. Removing the two new banks of memory cures the problem. Swapping the old sticks for the new sticks also works. The problem seems to occur when they are used together. Being a noob, I thought that due to the fact that all four banks are PC-6400 it would just work! Please help! :confused: Details: Windows 7 64bit Home Premium AMD X2 4200+ nVIDIA 8800GTS 2x XMS6404 v1.2 1024MB 4-4-4-12 (original) 2x XMS6405 v4.1 1024MB 5-5-5-12 Link to comment Share on other sites More sharing options...
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