Lenovo ThinkStation P7 Manual page 33

3. Install M.2 solid-state drives in the alphabetic order as shown.
4. If necessary, move the retention latch to an appropriate location to suit the
length of the new M.2 NVMe drive and remove any film on the thermal
pads on which you want to install the M.2 NVMe drive.
5. Pull the handle of the retention latch outward to the open position.
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