How do I know if this MB http://www.newegg.com/app/viewproductdesc.asp?description=13-152-040&DEPA=1 Will work with this memory? http://www.newegg.com/app/ViewProductDesc.asp?description=20-145-420&depa=1 Trying to find out how to make sure different memory is compatible with what. Is DDR and SDRAM the same? How can I tell the difference. I have 512 stick in my Dell now and I would like to use it with the next MB.