i recently bought a PNY GeForce 8800 GTS 320 MB for my new computer, installing it into the computer was fine but once i turned on the computer the computer emitted a long beeping sound with no picture. but if i plug the vga cable into the intergrated graphic socket with the graphics card in then the screen appears along with the long beeping sound,but once i take the graphics card out the beeping stops. my first thought was that the graphics card wasnt compatible with my motherboard but i looked around and the ddr3 grahpic card should be able to work on my ddr2 motherboard. the beep code was low high low high