HP ProBook 4740s Notebook PC Maintenance and Service Guide

Hard drive
Description Spare part number
750-GB, 7200-rpm hard drive 633252-001
750-GB, 5400-rpm hard drive 634250-001
640-GB, 5400-rpm hard drive 669300-001
500-GB, 7200-rpm hard drive 634925-001
320-GB, 7200-rpm hard drive 641672-001
Hard Drive Hardware Kit (includes hard drive bracket and screws) 683488-001
Before disassembling the computer, 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 40).
5. Remove the bottom door (see
Bottom door on page 41).
Remove the hard drive:
1. Position the computer upside-down with the front toward you.
2. Remove the four Phillips PM2.0×4.0 screws (1) that secure the hard drive to the computer.
Component replacement procedures 45