Question

 Can a PCI Express 2.0 Graphics card work on a PCI Express 3.0 slot on a Z77 chipset motherboard?

Answer Yes, all PCI Express slots are backwards compatible.
http://answers.yahoo.com//question/index?qid=20120828052354AAOUzHG

Top Q&A For: Can a PCI Express 2.0 Graphics card work on a P...

Can i install a PCI express 2.0 compatible graphic card into my PCI Express 1.0 slot?

provided that you are talking about a VERSION 1 pci express x16 slot? yes. they are backwards compatible
http://answers.yahoo.com//question/index?qid=20120825082109AAvL58j

Will a PCI Express 2.0 video card work in a PCI Express 1.0 slot?

A PCI Express 2.0 video card will function in a PCI Express 1.0 slot; however, it will only operate at PCI Express 1.0 speeds. PCI Express 2.0 video cards are backward compatible with PCI Express 1... Read More »
http://www.answerbag.com/q_view/2259782

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Can I use a PCI Express 2.1 graphics card in PCI Express 2.0 slot ?


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