Hard drive
Three dierent SKUs related to storage are oered:
●
Hard drive only
●
M.2 solid-state drive only
●
Hard drive and M.2 solid-state drive
For hard drive only models, install the hard drive into hard drive bay. For solid-state drive only models, install 
the solid-state drive into the solid-state drive adapter bracket, and then into the hard drive bay. For hard drive 
and solid-state drive models, install the hard drive into the hard drive bay and install the solid-state drive into 
the separate solid-state drive connector on the system board. System boards are 
oered with an additional 
M.2 solid-state drive connector for hard drive and solid-state drive models.
NOTE: The hard drive spare part kit does not include the hard drive bracket.
Description Spare part number
Hard drives:  
1-TB, 5400-rpm 778192-005
500-GB, 7200-rpm 703267-005
500-GB, 5400-rpm 778186-005
Hard drive bracket 925354-001
Before removing the hard drive, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o or in Hibernation, turn the 
computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by rst unplugging the power cord from the AC outlet and then 
unplugging the AC adapter from the computer.
4. Remove the battery (see Battery on page 28).
5. Remove the optical drive (see Optical drive on page 29), if installed.
6. Remove the bottom cover (see Bottom cover on page 35).
To remove the hard drive:
1. Remove the Phillips PM2.5×3.5 screw (1) that secures the hard drive assembly to the computer.
40 Chapter 6   Removal and replacement procedures for Authorized Service Provider parts