New Contributor
New ContributorHi John,
The board OPN is DK-DEV-AGI027RBES (Power Solution 2), and the serial number is AGIPCIe8020349.
Regarding your questions:
1. CXL PHY link status on the FPGA
Yes, we have checked the CXL PHY link status on the FPGA, and it was functional.
2. Previous validation of the server with a CXL card
Yes, this server has been tested with the same CXL card before and was working correctly.
3. Server information (model, CPU, and RAM)
We tested on both SPR and EMR platforms. For the EMR platform, we are using a Supermicro SYS-221H-TNR with two Intel® Xeon® Gold 6538Y+ CPUs and four Samsung M321R8GA0BB0-CQKRH DDR5 DIMMs.
Regular ContributorHi,
2. Previous validation of the server with a CXL card
Yes, this server has been tested with the same CXL card before and was working correctly.
[JohnT] May I know which design was use to test it was working correctly? What is the changes performed?
Thanks
New ContributorHi John,
We tested the CXL Type-2/Type-3 IP design examples using Quartus 24.3. These design examples worked previously but now fail on this particular device.
We noticed the issue around mid-October 2025, but no clear root cause has been identified so far. There is no visible physical damage to the FPGA, and the bitstream programs successfully; however, the CXL device does not enumerate in the system.
Regular ContributorHi,
Do you still have the previous compiled design which is working to verify the setup is still working correctly?
New ContributorHi John,
We still have the working compiled design and have verified it on another FPGA board with the same OPN, where it works without issue. Only programming the bitstream onto this board fails to bring up the CXL device.
