I look on the motherboard of my Dell Dimension 3000(which only has 3 PCI slots installed), but I can look at where there is an opening in the back of the machine as well as an empty slot on the motherboard where it looks like you would attach another PCI or PCI express slot, who knows, maybe even AGP. I am mainly asking this because I want to upgrade my computer to a PCI-Express video card. I was also wondering, there is only 2 installed RAM module female hubs, yet there looks like there should be four, there is the underlying pins on the motherboard, just not the actual hub to place in the RAM as well as the motherboard.
you can't just install a PCI express bus, your motherboard has to come equipt with one..... most likely the other slot is an AGP you have an old computer... you're going to have to buy a new computer or build one... sorry!
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