Hi,
Please can anyone tell me if I can use a PCIe device in a PCI slot and what, if any, would be the problems?

Thanks
The answer is that PCI Express and PCI are slots with different architecture;
the same also applies to AGP . So the question of Problems arising from
device fitting cannot arise. SIMPLY put.. there is no way a PCI card will fit in
a PCI express slot and vice versa. The same applies to AGP  PCIe is also faster transfer than PCI.
Do you want to use a PCIe in a PCI slot because you have a new graphics card and no slots?Hi,
a team here have COME up with a project which requires a good graphics card with composite VIDEO out together with a low grade cheap PC. We have a few old PCs and would like to reuse them. However, none have pcie slots, only pci.Well, CHECK to see whether any of those computers have AGP slots.  That's you next best OPTION if you don't have PCI Express.  If they have no AGP slots, you can get a PCI card with composite video, assuming that means S-Video.  For example: http://www.newegg.com/Product/Product.aspx?Item=N82E16814133233