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• To replace the Intel Optane memory, go to
• The internal storage drive is sensitive. Inappropriate handling might cause damage and permanent loss of
data. When handling the internal storage drive, observe the following guidelines:
– Replace the internal storage drive only for upgrade or repair. The internal storage drive is not designed
for frequent changes or replacement.
– Before replacing the internal storage drive, make a backup copy of all the data that you want to keep.
– Do not touch the contact edge of the internal storage drive. Otherwise, the internal storage drive might
get damaged.
– Do not apply pressure to the internal storage drive.
– Do not make the internal storage drive subject to physical shocks or vibration. Put the internal storage
drive on a soft material, such as cloth, to absorb physical shocks.
Replacement procedure
1. Remove the computer cover. See "Computer cover" on page 43.
2. Remove the front bezel. See "Front bezel" on page 44.
3. Remove the drive bay assembly. See "Drive bay assembly" on page 47.
4. Replace the M.2 solid-state drive and the heat sink (if any) according to the computer model:
• For computers without the heat sink for the M.2 solid-state drive, do the following:
a. Pull out the stopper.
54
M90s User Guide
https://support.lenovo.com/docs/tg_ssd
.
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