HP 640 ProBook G3 Notebook PC & HP 650 ProBook G3 Notebook PC - Maintenance and Service Guide
Table Of Contents
- Product description
- External component identification
- Illustrated parts catalog
- Removal and replacement procedures preliminary requirements
- Removal and replacement procedures for Authorized Service Provider parts
- Component replacement procedures
- Service door
- Battery
- Hard drive
- Solid-state drive (select products only)
- WWAN module (select products only)
- WLAN module
- Optical drive
- Keyboard
- Memory
- Hinge cover
- Base enclosure
- System board
- Fan and heat sink assembly
- Optical drive board
- Top cover and TouchPad
- RTC battery
- Speaker
- Power button board
- Fingerprint reader (select products only)
- Smart card reader
- Near Field Communication module
- Audio board
- Serial board
- Display assembly
- Component replacement procedures
- Computer Setup (BIOS), TPM, and HP Sure Start
- Using HP PC Hardware Diagnostics (UEFI)
- Backing up, restoring, and recovering
- Specifications
- Power cord set requirements
- Statement of memory volatility
- Recycling
- Index

Component Description
(1) esc key Displays system information when pressed in combination with
the fn key.
(2) fn key Executes frequently used system functions when pressed in
combination with a function key, the num lk key, the esc key, or
other key.
See Using the hot keys on page 17
(3) Windows key Opens the Start menu.
NOTE: Pressing the Windows key again will close the Start
menu.
(4) Function keys Execute frequently used system functions in combination with
the fn key.
See Using the hot keys on page 17.
(5) num lk key Alternates between the navigational and numeric functions on
the integrated numeric keypad.
(6) Integrated numeric keypad A separate keypad to the right of the alphabet keyboard that
enables you to add, subtract, and perform other numeric tasks.
When num lk is on, the integrated keypad can be used like an
external numeric keypad.
16 Chapter 2 External component identication