DELL PowerEdge R540服务器故障维修案例：（看到文章就是缘分）
客户名称：东莞市某街道管理中心
故障机型：DELL R540服务器
故障问题：DELL R540服务器无法开机，前面板亮黄灯，工程师通过登陆IDRAC管理口查看到故障日志有如下：

1：CPU 1 MEM012 VPP PG voltage is outside of range
2：Fan 4 RPM is less than the lower critical threshold
3：The storage BP1 Signal cable is not connected, or is improperly connected
4：The system board lntrusion cable or interconnect is not connected, or is improperly connected
5：The system board VGA cable or interconnect is not connected, or is improperly connected
6：The system board pfault fail-safe voltage is outside of range.
维修方式：用户送修到冠峰售后中心
处理结果：通过分析IDRAC故障信息后更换相关部件可以正常点亮，检查硬盘以及RAID正常，进Win2012R2系统正常。

既然看到这篇文章了，如果你也遇到这类问题的话不妨交流一下。