How to get I350AM4 to work at PCIE X2 or X1 mode?

[JasonChang]

Hi there,

We designed an I350AM4 LAN module that works normally with a PCIe X4 host, but when we change the host to PCIe to x1 or x2, the system can not detect I350AM4.
We checked the datasheet that notes if maximum Link Width = x4, then the I350 negotiates to either x4, x2 or x1. So how to get I350AM4 to work at PCIe X2 or X1 mode? or it needs to modify EEPROM?

[Caguicla_Intel]

Hello JasonChang,

Thank you for posting in Intel Ethernet Communities. 

Since your query involves designing your own LAN module, please be informed that this will be best answered by our Embedded Connectivity Support team. We will help you to move this post to the designated team for further assistance. 

Please feel free to contact us if you need assistance from Ethernet support team.

Thank you and stay safe!

Best regards,

Crisselle C.

Intel® Customer Support

[CarlosAM_INTEL]

Hello, @JasonChang:

Thank you for contacting Intel Embedded Community.

We sent an email to the address associated with this account with information that may help you.

Best regards,

@CarlosAM_INTEL. 

[JasonChang]

Hello, @CarlosAM_INTEL 

So any comment on this issue?

[CarlosAM_INTEL]

Hello, @JasonChang:

Thanks for your reply.

You should follow the suggestions provided in our email mentioned in our last communication stated on this thread.

Best regards,

@CarlosAM_INTEL.

[JasonChang]

Hi @CarlosAM_INTEL ,

Can you send the mail again, I did not receive the mail.

Regards,

Jason

[CarlosAM_INTEL]

Hello, @JasonChang:

Thanks for your reply. 

We have sent again our previous email to the email address associated with this account. We suggest reviewing the spam or undesired email carpets, where you may find our previous communication.

Best regards,

@CarlosAM_INTEL.