Can We Put Ddr2 Ram In Ddr3 Slot

 
OK! I am a noob at this!
I am running XP Pro 32-bit. I want to replace the Video Card. Nothing great or expensive...just a decent one. It for a friend (senior, that is why XP). I just got him a Dell Vostro 200 slim, added a 1TB HD and installed all drivers and XP. Please let me know 3 things:
1. Does ddr2 or ddr3 matter on the video card..is one better to run on XP
2. 64-bit or 32-bit. I assume 64 will run on 32-bit XP
3. Any suggestions on the card or where to buy (PCI Express 2.0X16)
Thanks! Ynot
CanRam

Ddr2 Ram Price In India

DDR2 and DDR3 are not only different in what they are, but they are electrically different, you can't use products that aren't designed to be electrically compatible with each other. Even if you did somehow force a DDR3 module into a DDR2 slot, you'd probably blow the RAM, and, well, the system board too. It's impossible to fit DDR2 RAM into a DDR3 motherboard, the key notches aren't in the same position. If you want and tried to jam crap into the DIMM slot, then it sounds like you damaged the.