Dell EqualLogic PS4000 Hardware Maintenance page 43

PS4000 Hardware Maintenance Maintaining Control Modules
5. Firmly press the card into the housing until it clicks into place. Make sure you
cannot pull it out.
Figure 3-13: Inserting the Micro SD Card
6. Install the control module. See Installing a Control Module on page 3-13.
After you replace the micro SD card, make sure the control module is operational.
See Interpreting Control Module LEDs on page 3-2.
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