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Does anyone know if a PCI-X card can be used in a PCI-E slot?

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2 Answers 2

up vote 5 down vote accepted

No, i believe you can use PCI in PCI-X (but not vice versa) since PCI-X is a extension to the PCI protocol. The only slot that a PCI-X card will work with is a PCI X slot

PCI-E is a whole different distinct protocol despite the name and is electrically and physically incompatible - the card definitely won't fit by design, and almost everything is different between PCI/PCI-X and PCI-E

It almost absolutely will not work

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In addition to what Journeyman Geek has rightly said.

You can still use a riser card implementation which will provide with a proper PCI-X to PCIe bridge. One such option is this

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