Is this compatable?

I get a 512mb graphics card and it has ddr2 memory on it. Will that work on my ddr 400mghz mobo? Its a gigabyte Socket 754 AMD near a 1.81ghz Sempron. But basically , what I want is compatability. NOT draw from a new mobo.

Is this compatable?

The memory on your graphics card is used by the graphics card individual. So if the card has the right fitting (in your shield I suspect AGP) it will work in your computer minus interfering with the installed memory.
check Gigabyte website for compatibility beside ddr2
the memory on your video card and your system memory are 2 different things entirely..



as long as the video card fits in the agp (or pci-express) slot, it'll work surrounded by your system
Well that all depends. Do they enjoy the same port (AGP, PCI, PCI-e)? Do you hold the correct wattage power supply? If so then yes I construe so. On a side note -- A 512 card on that processor? That's going to be so bottlenecked it's not even funny.
Yes, the graphics card is the merely thing that uses its memory, as long as you hold the correct interface and drivers are available, just something like any graphics card is compatible with any mobo. Now your Sempron is a different story. If you plan on using CAD programs or gaming, that processor is gonna slow you down alot.
that memory your mentioning is on your graphics card its not impossible to tell apart as, what your pc uses. it should work for you. ddr 400 is also particular as pc 3200, thats simply what your mobo will support video cards have near own memory. and its typically much faster than system memory.
yes it is
it doesn't matter its compatible 2 diff item. you might want more like 800mghz mem.