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Altera_Forum's avatar
Altera_Forum
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20 years ago

cyclone and 5V pci

Hi, I have ask the question, but get no reply. So I ask again! My pci add in card will be connected to PC motherboard. The PCI connector on common PC motherboard does not have the 3.3V PCI...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Keep in mind that modifying your PCI bus (5V -> 3.3V) may put you out of spec (PCI is pretty strict). If this goes into an end product and you need this to be up to spec I would look at that first before figuring out the implementation. Perhaps someone here can comment on this further or know if this will work (probably will work if done properly, not sure if you will meet the PCI spec though).