Hi. I'm intending to upgrade my ram I've been doing some research and I found that my motherboard, ASUS P5ld2x/1333 only supports DDR2 memory, isn't that right ? Does that mean that if I install a 4gb DDR3 kingston stick it won't work at all or does it mean that it's going to work as DDR2 ? Also the Motherboard only supports 667 mhz fequencies. Does it mean that a 1333mhz won't work at all or will it work at 667mhz ? So what is the best solution here?