Lenovo G400 User Manual page 37

To replace the hard disk drive, do the following:
1 Turn off the computer, then disconnect the AC power adapter and all
cables from the computer.
2 Close the computer display, and then turn the computer over.
3 Remove the battery pack.
4 Remove the Hard disk drive/Memory/Central processing unit/Mini PCI
Express Card slot compartment cover.
a.Loosen the screws that secure the compartment cover
b.Remove the compartment cover
Appendix. CRU instructions
.
b
a
a
b
a
.
33