Posted 07 October 2007 - 10:08 PM
In order to run in dual channel your modules have to have the exact same specs, they can be of different manufacturers but you will need to populate the expansion slot with the same amounts of RAM. Slot 1 and 3 has 512MB modules, if you put a 1GB module in slot 2 you will want to put a 1GB module in slot 4.
There are those that will tell you that you don't have to have "matched" pairs to run in dual channel, but if you do manage to get it working with mismatched modules the performance may not be much more appreciable than running in single channel, if you plan on using this computer on anything that is demanding then you will start to notice problems. You get what you pay for.
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