how to check my pcie slot working or not. When i inserted nvidia Gforce 9500gt it is not detecting my mother board (Asus M2N VM HDMI ) but graphics cards fan is working. then how can i identifies the slot is faulty or not. Is their any changes to be done in the bios. Please help me. My processor is AMD Phenom 9550 and 3Gb DDR2 ram is inserted.