Yes, PCI and PCI-E components are incompatible.
pci express (PCIe)
lane
Motherboards with the Pentium 4 have seven slots. The number of slots that are PCI and the number that are PCIe seem to vary from manufacturer to manufacturer.
Yes, but they will not be able to achieve as high bandwidth, so performance may suffer slightly.
type of chipset
PCIe or USB 2.0 bus standards.
As of right now, the fastest expansion bus found in a standard PC is a PCI-E or often seen as PCIe (PCI-E or PCIe stands for Peripheral Component Interconnect Express)Installing a PCIe card into your PC may be done only if the motherboards expansion slot will fit it. PCIe cards can fit into larger slots, but not smaller slots (obviously).
Most likely for dual graphics cards.
PCIe was designed by major companies: Intel, IBM, Dell, HP to surpass PCI and former competitors, this was achieved by the faster data tranfer speed, the difference between PCI and PCIe is that the PCI the the out-dated version.
No, these technologies are not backwards compatible according to Jean Andrews in her latest text book on computer structure.
PCI-e runs at 250MBps and PCI runs at 133MBps
A PCIe x16 graphics card will not work in a normal PCI slot. PCIe or PCI Express is a new standard in expansion interfaces. PCIe is physically and electronically incompatible with PCI slots.