General controller issues.......................................................................................93
Controllers are no longer redundant......................................................................94
Data located on drives accessed in RAID mode is not compatible with data
accessed from non-RAID mode............................................................................ 95
The Smart Array controller does not show logical drives after moving drives
to a new server or JBOD....................................................................................... 95
Data failure or disk errors on a server with a 10SFF drive backplane or a
12LFF drive backplane..........................................................................................96
HPE Smart Array S100i SR Gen10 drives are not found when RAID mode is
disabled................................................................................................................. 96
HPE Smart Array S100i SR Gen10 drives are not recognized............................. 97
General fan issues.................................................................................................97
Fans running at a higher than expected speed..................................................... 98
Excessive fan noise (high speeds)........................................................................99
Excessive fan noise (low speeds)......................................................................... 99
Hot-plug fan issues................................................................................................99
HPE BladeSystem c-Class enclosure fans are operating at a high speed..........100
General memory issues.......................................................................................100
Server is out of memory...................................................................................... 102
DIMM configuration errors...................................................................................102
Server fails to recognize existing memory...........................................................103
Server fails to recognize new memory................................................................ 103
Uncorrectable memory error................................................................................104
Correctable memory error threshold exceeded...................................................105
NVDIMM population errors..................................................................................106
NVDIMMs are disabled........................................................................................106
The persistent memory drive does not appear in the OS....................................107
The persistent memory drive is read only........................................................... 108
The persistent memory drives lose persistency.................................................. 109
The persistent memory drive does not appear in the OS.................................... 110
The persistent memory drive is read only............................................................ 111
The persistent memory drives lose persistency...................................................113
HPE Scalable Persistent Memory backup and restore failure............................. 113
Unable to configure Scalable Persistent Memory................................................114
Troubleshooting the processor............................................................................ 115
Uncorrectable machine check exception............................................................. 116
System battery is low or lost power................................................................................ 116
System board and power backplane issues................................................................... 117
microSD card issues.......................................................................................................117
The system does not boot from the microSD card.............................................. 117
System does not boot from the USB drive key.................................................... 118
Troubleshooting general graphics and video adapter issues.............................. 118
The screen is blank for more than 60 seconds after you power up the server.... 119
Monitor does not function properly with energy saver features...........................120
Monitor does not function properly with energy saver features...........................121
Video colors are wrong........................................................................................121
Contents
5