Lenovo ThinkCentre M90z User Manual page 61

5. Close the computer cover and connect the power cord. See "Completing the parts replacement"
on page 50.
6. Turn on the computer and leave it on for approximately 10 seconds. Then, turn off the computer by
holding the power switch for approximately five seconds.
7. Repeat step 1 through step 3.
8. Move the Clear CMOS /Recovery jumper back to the standard position (pin 1 and pin 2).
9. Close the computer cover and connect the power cord. See "Completing the parts replacement"
on page 50.
.
Chapter 2 Installing or replacing hardware
53