Most Pci-express x16 2.0 compatible motherboards
MSI had released a motherboards with dual slots.
see: related links
Unfortunately, no. DDR RAM will not work in a DDR2 motherboard, and DDR2 RAM will not work on a DDR3 motherboard. There are a few motherboards that have slots for both DDR and DDR2, so it is conceivable that there could be motherboards with slots for both DDR2 and DDR3.
No, you can't use same DIMM slots for DDR2 and DDR3 due to different position of the key and interface incapability.
No. These modules are electrically, logically, and physically incompatible with older SDRAM slots.
they are different ram generations. DDR2 is the older and slower version of DDR3. DDR2 is about 800 MHz max. and DDR3 is about 1333 MHz minimum
ddr3
AnswerNo. DDR3 is not backward compatible with DDR2 and DDR. e.g. DDR3 has 1.5V power, DDR2 needs 1.8V and DDR needs 2.5V power. In terms of standard motherboard slots also the notch or the key for different memory modules is at different place for the three type of memory thus preventing any accidental insertion in memory slots which can damage the memory and or the motherboard. More Information:Gateway Tech Support said their Gateway MD7820u Notebook is compatible with both.SODIMM DDR3 might have the same pins as SODIMM DDR2.
DDR2 is slower than DDR3 due to their difference in bandwidth. DDR3 has a higher bandwidth hence can transfer data at higher speeds than DDR2.
DDR3
It is not very noticeable if you upgrade your memory on your computer.
Combo motherboards are those which support both DDR2 and DDR3 RAM. However, only one type of RAM should be used at a time.
ddr3
DDR3 uses lower voltage