My motherboard is Intel D946GZIS. It supports up to 4 GB RAM. I'm having a 1 GB DDR2 533 MHz RAM in it now. I want to add 2 GB RAM to it. But DDR2 533 MHz RAM is not available in nearby retail stores. If I buy a 2 GB DDR2 667 MHz RAM and use it with my 1 GB DDR2 533 MHz RAM, will it work fine? It's okay if the 667 MHz RAM will clock to 533 MHz and give me 3 GB in total. But I don't want a scenario in which only one of the RAM can be used at a time.
This is the Motherboard specification document: http://downloadmirror.intel.com/15108/eng/D946GZIS_SpecUpdate05.pdf
This is the RAM I'm planning to buy: http://www.transcendusa.com/support/dlcenter/jetram/product/pdf/jm667qlu-2g_2980-s.pdf
Some expert advices please..