I have a Dell Precision T3400 with Windows 7 x64. It has 4 RAM slots in 2 banks. Currently, slot 00 (bank 0, slot 0) and slot 10 (bank 1, slot 0) have 1 GB PC2-6400 Dell RAM each. (ServerFault won't let me post more than 1 hyperlink, but it's Dell SKU A1312860)
I would like to upgrade the RAM and I found some GSKILL 2GB PC2-6400 RAM. Can I combine the Dell and the GSKILL RAM for a total of 6GB RAM? If yes, does it matter how it's arranged? i.e. Bank 0 is GSKILL and Bank 1 is DELL or mix them for 3GB in each bank?