We have been encountered the defective chip failure when perform functional and system test, no voltage and clock abnormal found, no cosmetic issue and soldering issue found. We suspect the chip work abnormal, replaced it with new one the failure symptom gone away. We send it to 3rd party do re-balling and remount on a known good board to confirm, the same error following the suspect chip, so we can eliminate the soldering issue, it should be the component failure.
This is Intel support agent.
Typical FA support process in Intel forum is via private message to protect customer design confidentiality.
I will initiate the private message discussion with you shortly.
Intel Support Agent
Hi, Intel Support Agent
Pls. find our feedback of the verification outcome, the FA samples still encounter functional issue even FA outcome are NTF.