Can a PCIe card be inserted into a commonplace PCI slot? Thanks?

Can a PCIe card be inserted into a commonplace PCI slot? Thanks?

As others own said, physically the slots are different. Look at this picture:



http://lib.store.yahoo.net/lib/directron...



The top card is a PCIe card and the bottom card is a PCI card. It's rather assured to tell they are incompatible. And thats in recent times for a 16x slot. There are also 1x, 2x, 4x, and 8x slots that don't even come close to being big enough:



http://www.viperlair.com/articles/editor...



Another idea a PCI card won't work in a PCIe slot is the mode the PCIe slot transfers the data. PCIe is serial, approaching USB and Firewire, while PCI is parallel, like your elderly printer cables.
No.



the idea is the contacts on PCI do not lead to equal circuits and functions as on PCI-e. not to mention the slot sizes being completely mismatched.
nope slots are interly different
no
No, terribly, I'm not entirely sure why, but i think PCIe cards require more power and speed than a mundane PCI slot, and the PCIe slot allows more power and speed, thats just a guess though, not sure.