what are the graphics card supported

I'm sorry to say man, the only Graphics card upgrade available to this m/b is a PCI based cards. (not PCI-express ones)

here's your PC's Motherboard Details

finding a PCI based card is really pain in %$# you know where .

I also have the same Motherboard but my PC is HP Pavilion.

btw did your PC come with a Pre-Installed Windows XP??