HP ProBook 6550b HP ProBook 6455b, 6555b, 6450b,and 6550b Notebook PCs - Maint - Page 34

Front components item Component (1) Wireless light (2) Power light (3) Battery light (4) Drive light (5) Webcam light (select models only) (6) Display release latch (7) Speakers (2) Description ● Blue: An integrated wireless device, such as a wireless local area network (WLAN) device, the HP Mobile Broadband Module (select models only), and/or a Bluetooth device, is on. ● Amber: All wireless devices are off. ● On: The computer is on. ● Blinking: The computer is in the Sleep state (Windows 7 and Windows Vista) or Standby (Windows XP). ● Off: The computer is off or in Hibernation. ● Amber: A battery is charging. ● Turquoise: A battery is close to full charge capacity. ● 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: If the computer is plugged into an external power source, the light turns off when all batteries in the computer are fully charged. If the computer is not plugged into an external power source, the light stays off until the battery reaches a low battery level. ● Blinking turquoise: The hard drive or optical drive (select models only) is being accessed. ● Amber: HP 3D DriveGuard has temporarily parked the hard drive. On: The webcam is in use. Opens the computer. Produce sound. 26 Chapter 2 External component identification