are you sure that your ram is validated for that motherboard
Crucial Website says it is
are you sure that your ram is validated for that motherboard
Is it not something to do with 32/64 bit versions of windows?
I presume it isn't since no one has mentioned it yet but I know that <2GB= 32 bit needed and >4GB= 64 bit needed. I presume a 32 version of windows might behave like this once you try to add 4GB or more.
edit: oh sorry, jusrt seen you had installed the 64 bit versions, nevermind. I thought 64 bit wouldn't work with only 2GB?