His old gpu died and someone gave him a new one. He doesn't know what the gpu is exactly but he says it looks like a PCI (the bottom of it looks like this https://gyazo.com/1c4fd069a93418582ff9269afacc46bb). He said he tried to put the gpu in but it wont fit. I looked up his mobo and it says there's 3 PCI slots http://www.ascendtech.us/dell-dimension-9200-xps-410-motherboard_i_mb4755dellwg855.aspx. Now I only know him online, so I can't check if he's tried to enter it into the correct slot, but he was hesitant to try to put the gpu in because it has 3 sets of pins and the slot looks like it only needs 2. It looks like the MOBO has every slot for every gpu except for AGP. Would there be anything that would cause the card not to fit in any of the slots? Or does it sound like user error?