User Manual

9. If you install a new hybrid solid-state drive (with Intel Optane memory), enable the Intel Optane memory
by doing the following:
a. Restart your computer. When the logo screen is displayed, immediately press F1 to enter the UEFI
BIOS menu.
b. Select Config ➙ Storage ➙ Controller mode. Ensure that RST mode is selected.
c. Go to
https://support.lenovo.com. Download and install the Intel Rapid Storage Technology (iRST)
Console with Device Driver on your computer.
d. Run the iRST Console with Device Driver.
e. Click Intel Optane Memory and then follow the instructions on the screen to enable it.
Replacement procedure for the short M.2 solid-state drive
Note: A Mylar film might cover the M.2 solid-state drive. To access the M.2 solid-state drive, open the film
first.
1. Disable the built-in battery. See “Disable Fast Startup and the built-in battery” on page 51.
2. Turn off the computer and disconnect the computer from ac power and all connected cables. Then,
close the computer display
3. Remove the base cover assembly. See “Base cover assembly (for T490 and P43s only)” on page 52 or
“Base cover assembly (for T590 and P53s only)” on page 54.
4. Remove the screw that secures the M.2 solid-state drive bracket
1 and remove the M.2 solid-state drive
bracket
2 . Then, remove the M.2 solid-state drive out of the drive slot 3 .
60 T490, T590, P43s, and P53s User Guide