JUEFI0067: A PCIe link training failure is observed in Slot2 and the link is

發生問題：X520/I350 40G網卡，作業系統讀不到設備，重啟後發現有報錯，是PCI連接失敗故障狀態，被禁用；

JUEFI0067: A PCIe link training failure is observed in Slot2 and the link is disabled.

Do one of the following: 1) Turn off the input pour to the system and turn on again. 2) Update the PCIe device firmware. If the issue persists, contact your service provider.

解決方法:
斷電關機幾分鐘後再開機沒有報錯了。

PCI訊號更新後會有差異導致錯誤，斷電釋放一段時間讓他重置再啟動。