PCI express compatability

[x1600c]

I was wondering are pci express cards compatable with oldschool PCI? or will they only work with pci express slots?

 

[V0ltage]

not at all compatable with old PCI, completely different slot.

 

[theNoid]

The PCI-E slot is about 3 inches long... about 1/4 a regular PCI slot is.

 

[TheSpoon]

The PCI-E slot is about 3 inches long... about 1/4 a regular PCI slot is.

huh? a pci slot is not a foot

 

[V0ltage]

all PCI express slots are different sizes, 1X slots are very tiny, and 16X are longer than PCI and agp slots, although not as long as ISA.