HP 255 G4, Maintenance And Service Manual

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Hard drive
NOTE: The hard drive spare part kit does not include the hard drive bracket.
Description Spare part number
For use only in HP Notebook models :
1-TB, 5400-rpm, hybrid 8 GB SSD 731999-005
For use in all models:
1-TB, 5400-rpm, 2.5-in 778192-005
750 GB, 5400 rpm, 2.5 in 778190-005
500-GB, 5400-rpm, 7-mm 778186-005
For use only in HP 255 G4 Notebook models:
500-GB, 7200-rpm, 7-mm 764211-005
Hard Drive Hardware Kit (includes brackets and connector) 813949-001
Before removing the hard drive, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off 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 first 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. Disconnect the hard drive cable from the system board (1) .
2. Remove the three Phillips PM2.0×2.4 screws (2) that secure the hard drive assembly to the computer.
38 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts