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Altera_Forum
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17 years ago

PCIe negotiated as x1 instead of x8

Hi, I have configured the PCIe megacore on Stratix II GX development kit for 8 lanes but when I plug it into the x16 slot of my PC (Dell Optiplex 775) it is configured only as a single lane devi...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

There should be a jumper on your development board which connects A11 of the card connector to one of the three prsnt pins. These pins are used by your computer to determine which lane width to use. Do you have it set correctly?