User Guide - Windows 7

Table Of Contents
Component Description
NOTE: The computer fan starts up automatically to cool
internal components and prevent overheating. It is normal
for the internal fan to cycle on and off during routine
operation.
(5) SIM slot (select models only) Supports a wireless subscriber identity module (SIM). The
SIM slot is located inside the battery bay.
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Component Description
(1) On: An integrated wireless device, such as a wireless local
area network (WLAN) device and/or a Bluetooth® device, is
on.
NOTE: On some models, the wireless light is amber when
all wireless devices are off.
(2) Power light
On: The computer is on.
Blinking: The computer is in the Sleep state, a power-
saving state. The computer shuts off power to the
display and other unneeded components.
Off: The computer is off or in Hibernation.
Hibernation is a power-saving state that uses the
least amount of power.
NOTE: For select models, the Intel® Rapid Start
Technology feature is enabled at the factory. Rapid Start
Technology allows your computer to resume quickly from
inactivity. For more information, see Using power-saving
states on page 41.
(3)
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.
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