Lenovo ThinkSystem ST550 7X09, Руководство по обслуживанию

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Step 3. Slide the retainer forward (toward the connector) to secure the M.2 drive into place.
Attention: When sliding the retainer forward, ensure that the two nubs 3 on the retainer enter the
small holes 4 on the M.2 backplane. Once they enter the holes, you will hear a soft “click” sound.
Figure 99. Instruction for sliding the retainer
Step 4. Align the blue plastic supports at each end of the M.2 backplane with the guide pins on the system
board. Then, insert the M.2 backplane into the M.2 slot on the system board and press it down to
fully seat it.
Figure 100. M.2 backplane installation
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ThinkSystem ST550 Maintenance Manual