PowerFlex: 14G Ready Node reboot "The System board BP1 PG voltage is outside of range"

14G Ready Node with 12 or more DIMMS reboots spontaneously due to hardware issue.   

Symptoms

The only known indicator of this issue is that the iDRAC Lifecycle Log (Maintenance Lifecycle Log) will show the following entry:

The System board BP1 PG voltage is outside of range

Example screenshot of location in iDRAC:  (Does not contain the error)

Dell SupportAssist will also display the error on the viewer Lifecycle log tab. 

Impact

Spontaneous node reboot, which could cause Data Unavailability (DU).

Signal noise on the backplane power cable, causing intermittent and false errors regarding backplane power presence being lost 

Upgrade CPLD FW version to 1.02+, either with the DTK ISO or using iDRAC: 

• December 2018 14G Ready Node DTK ISO: https://dl.dell.com/downloads/NXDKV_VxFlex-Ready-Node-14G-Hardware-Update-November-2021-Bootable-ISO.iso
• iDRAC:
  • R640: https://www.dell.com/support/home/us/en/19/drivers/driversdetails?driverId=FN8CW&osCode=WST14&productCode=poweredge-r640
  • R740: https://www.dell.com/support/home/us/en/19/drivers/driversdetails?driverId=PC0N3&osCode=WST14&productCode=poweredge-r740xd

Impacted versions

14G Ready Node with CPLD FW < 1.02 (Ship date before June 01, 2018)

Fixed in version

14G Ready Node with CPLD FW >= 1.02 (Ship date at/after June 01, 2018)