mason dixon Posted January 19, 2012 Share Posted January 19, 2012 Asrock m3a770de mobo 2gb of ddr3 1600 existing ram(not sure what brand) trying to install 2 4gb sticks of the ddr3 1600 vengeance ram and its not showing up win 7 x64 Link to comment Share on other sites More sharing options...
peanutz94 Posted January 20, 2012 Share Posted January 20, 2012 If you are trying to add this to your existing memory that is most likely the problem. With just one stick of the new memory installed reset your CMOS,and load set-up defaults. and try to boot the machine that way. If you get a successful boot, shut down and add the remaining stick of new memory. Dont add any of the old. Link to comment Share on other sites More sharing options...
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