Please try following steps, one step at a time to tackle this issue

• Please make sure that new module is pushed all the way down in to the socket. Please try again and make sure to push it all the way down and system power should be off during installation.
  

• Please turn off the power to your system and remove eFetcher module and use pencil eraser to clean memory module gold contacts and make sure that memory socket is also dust free and reseat the module.
  

• Please turn off the power to your system and try installing eFetcher module in a different socket if more than one socket is available.
  

• Please turn off the power to your system and try installing eFetcher module alone in the system.
  

• If you are installing memory in Desktop or Tower case then please check to make sure that all expansion cards are seated properly and no power connector got loose during memory installation.
  

• If you have purchased more than one module and your system can use one module at a time then try installing one module at a time.
  

• Please check eFetcher part number and make sure that you have ordered correct module for you computer.