Power Edge R750xa 无限重启无法进入系统

报错内容：

报错一：UEFI0078:One or more Machine Check errors occurred in the previous boot .Check the System Event Log(SEL) to identify the source the Machine Check error and resolve the issues .

报错二：Booting from PXE Device 1: Embedded NIC 1 Port 1 Partition 1

PXE: No nedia detected.

Boot Failed:PXE Device 1: Embedded NIC 1 Port 1 Partition 1

Booting from RAID Controller in SL 7: ubuntu

错误情况：

按F1进入系统，无限重启，无法进入系统。