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Altera_Forum's avatar
Altera_Forum
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15 years ago

why Arria II doesn't support x2 PCIe?

Anyone has any ideas why Arria II doesn't support x2 PCIe? I really like Arria II and want to make a system with multple PCIe cards, but x4 lane PCIe switches are very expensive. Thanks. ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hi,

from my understandment PCIE runs in x1, x4, x8 and x16. x2 is possible but is not standard for the Slots on a mainboard.

Card PCIe x1 PCIe x4 PCIe x8 PCIe x16 x1 ok ok ok ok x4 - ok ? ? x8 - - ok ? x16 * * * ok

On the other side you can use the lanes like you want to :) if the core supports x2 this schould be no problem.