I have purchased from DEll 2*2GB memory upgrades.  User manual says that they should be fitted in DIMM 1 & 2 or DImm 3 & 4.  Running the Dell Analysis programme indicates that I have 512 MB in DIMM 1 & 512 MB in DIMM 3 which is at odds with the instructions ( I have not looked inside the box yet).  Should I follow the instruction manual and ignore the current configuration?

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