IDPA: DP4400 DIMM in memory slot is disabled or missing


   Article Number:     531305                                   Article Version: 4     Article Type:    Break Fix 




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Applies to:   

  •         DP4400 (14G Dell PowerEdge Platform - R740XD)      
  •         All Software versions     
    The DP4400 may report a missing or faulty DIMM (Dual Inline Memory Module) during boot.     
      Uncorrectable memory errors may also be reported on the affected slot/DIMM.     
      Example of Errors seen during Boot:     
      UEFI0339: The Dual Inline Memory Module (DIMM) in the memory slot <XX> is disabled because of initialization errors caused by uncorrectable memory errors, invalid configuration and others.       
        UEFI0058: Uncorrectable Memory Error has occurred because a Dual Inline Memory Module (DIMM) is not functioning.
    DIMM error screen shot                                                           






During the power cycle of the underlying Hardware platform, the system performs a Power on Self Test (POST).     
      When power is turned on, POST is the diagnostic testing sequence that a computer's basic input/output system (BIOS) runs to determine if the computer keyboard, random access memory (RAM i.e. DIMM's), disk drives and other hardware are working correctly.     
      An error found in the POST is usually fatal and will halt the boot process, since the hardware checked is absolutely essential for the computer's functions.
    Possible faults related to DIMM errors are:   

  •         The DIMM may need to be reseated     
  •         The DIMM may be faulty     
  •         The memory slot may be faulty     






Troubleshooting Steps:     
      Suitably qualified personnel may attempt the following:

  •         reseat the affected DIMM     
  •         remove the faulty DIMM and swap it into another DIMM slot to see whether the fault follows the DIMM or remains on the slot.        
    •             If the DIMM is confirmed to be faulty then it should be replaced.         
    •             If the slot is faulty then the motherboard (chassis) will need to be dispatched.         
Customer Action:      
      Please contact Dell-EMC Tech Support to report this issue & Field Engineer will be dispatched to test or replace the faulty DIMM, if needed.






DP4400 expected Memory Slot pairs are as follows:     
    This example of ACM showfru dimm output shows DIMM in slot B2 is missing   
    idpaacm:/usr/local/dpatools/bin # ./showfru dimm     
      Collecting Data............     
      | ID| Status| Manufacturer       | Part#           | Serial# | Size    |     
      | A1| OK    | Hynix Semiconductor| HMA84GR7AFR4N-VK| 8244D2xx| 32768 MB|     
      | A2| OK    | Hynix Semiconductor| HMA84GR7AFR4N-VK| 8244B1xx| 32768 MB|     
      | A4| OK    | Hynix Semiconductor| HMA84GR7AFR4N-VK| 8244B1xx| 32768 MB|     
      | A5| OK    | Hynix Semiconductor| HMA84GR7AFR4N-VK| 8244D2xx| 32768 MB|     
      | B1| OK    | Hynix Semiconductor| HMA84GR7AFR4N-VK| 8244B2xx| 32768 MB|     <<<<-----      
      | B4| OK    | Hynix Semiconductor| HMA84GR7AFR4N-VK| 8244B1xx| 32768 MB|     <<<<-----
DIMM B2 is missing   
    | B5| OK    | Hynix Semiconductor| HMA84GR7AFR4N-VK| 8244B1xx| 32768 MB|