res, DDR ram can be clocked back, so in essance youc an put more expensive ram in it and have it clocked back to what your motherboard supports.

The reason for doing this is because the speed they're certified at is larger thus less chance to burn it out; plus you have it on hand should you need the speed of ram that is in th emachine; plus some places give discounts when you purchase in bulk.

Although I do agree it is a waste
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