HP ProBook 640 G1, 645 G1, 650 G1, and 655 G1 Notebook PCs - 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 Customer Self-Repair parts
- Removal and replacement procedures for Authorized Service Provider parts
- Computer Setup (BIOS), TPM, and HP Sure Start – Windows 10
- Using HP PC Hardware Diagnostics (UEFI) – Windows 10
- Computer Setup
- Windows 8 — Computer Setup (BIOS), MultiBoot, and System Diagnostics
- Windows 7 — Computer Setup (BIOS), MultiBoot, and HP PC Hardware Diagnostics (UEFI)
- Specifications
- Backup and recovery – Windows 10
- Backup and recovery
- Statement of Volatility
- Power cord set requirements
- Recycling
- Index
Front
Component Description
(1) Wireless light
●
White: An integrated wireless device, such as a
wireless local area network (WLAN) device and/or a
Bluetooth® device, is on.
●
Amber: All wireless devices are off.
(2) Power light
●
On: The computer is on.
●
Blinking: The computer is in the Sleep state.
●
Off: The computer is off.
(3) AC adapter/Battery light
●
White: The computer is connected to external power
and the battery is charged from 90 to 99 percent.
●
Amber: The computer is connected to external power
and the battery is charged from 0 to 90 percent.
●
Blinking amber: A battery that is the only available
power source has reached a low battery level. When
the battery reaches a critical battery level, the
battery light begins blinking rapidly.
●
Off: The battery is fully charged.
(4) Hard drive light
●
Blinking white: The hard drive is being accessed.
●
Amber: HP 3D DriveGuard has temporarily parked the
hard drive.
18 Chapter 2 External component identification