HP PROBOOK 6440B User Manual

Resolving a low battery level
CAUTION: To reduce the risk of losing information when the computer reaches a critical battery level
and has initiated Hibernation, do not restore power until the power lights turn off.
Resolving a low battery level when external power is available
▲
Connect one of the following devices:
●
AC adapter
●
Optional expansion product or docking device
●
Optional power adapter
Resolving a low battery level when a charged battery is available
1. Turn off the computer or initiate Hibernation.
2. Remove the discharged battery, and then insert a charged battery.
3. Turn on the computer.
Resolving a low battery level when no power source is available
▲
Initiate Hibernation.
– or –
Save your work and shut down the computer.
Resolving a low battery level when the computer cannot exit Hibernation
When the computer lacks sufficient power to exit Hibernation, follow these steps:
1. Insert a charged battery or plug the computer into external power.
2. Exit Hibernation by briefly press the power button.
Calibrating a battery
Calibrate a battery under the following conditions:
●
When battery charge displays seem inaccurate
●
When you observe a significant change in battery run time
Even if a battery is heavily used, it should not need to be calibrated more than once a month. It is also
not necessary to calibrate a new battery.
Step 1: Fully charge the battery
WARNING! Do not charge the computer battery while you are onboard aircraft.
NOTE: The battery charges whether the computer is off or in use, but it charges faster when the
computer is off.
80 Chapter 5 Power management

HP PROBOOK 6440B Specifications

General

Bus type	DMI
Stepping	C2
Tjunction	105 °C
Processor cache	3 MB
Processor cores	2
System bus rate	2.5 GT/s
Processor family	Intel® Core™ i5
Processor series	Intel Core i5-400 Series
Processor socket	BGA 1288
Processor threads	4
Processor codename	Arrandale
Processing Die size	81 mm²
Processor frequency	2.26 GHz
Processor cache type	Smart Cache
Processor lithography	32 nm
Processor manufacturer	Intel
Processor front side bus	- MHz
PCI Express slots version	2.0
Processor boost frequency	2.53 GHz
Processor operating modes	64-bit
ECC supported by processor	No
PCI Express configurations	1x16
Thermal Design Power (TDP)	35 W
CPU multiplier (bus/core ratio)	17
Maximum number of PCI Express lanes	16
Number of Processing Die Transistors	382 M
Motherboard chipset	Intel® HM57 Express
HDD speed	7200 RPM
HDD interface	SATA II
Optical drive type	DVD Super Multi
Total storage capacity	250 GB
LED backlight	Yes
Display diagonal	- \
Display resolution	1366 x 768 pixels
Native aspect ratio	16:9
Memory slots	2x SO-DIMM
Internal memory	2 GB
Memory clock speed	1333 MHz
Internal memory type	DDR3-SDRAM
Maximum internal memory	- GB
Discrete graphics card model	-
On-board graphics card model	Intel® HD Graphics
On-board graphics card base frequency	500 MHz
On-board graphics card dynamic frequency (max)	766 MHz
Type	PC
Dimensions (WxDxH)	30 x 340 x 240 mm
Wireless technology	Wi-Fi
Intel segment tagging	Enterprise
Compliance industry standards	IEEE 802.11 b/g/n
Networking type	GigabitEthernet, WLAN
Operating system installed	Windows XP Professional
Charging port type	DC-in jack
Serial ports quantity	0
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Product color	Black
Country of origin	China
Processor code	SLBPM
Processor ARK ID	43537
Processor package size	rPGA 37.5x 37.5, BGA 34x28 mm
Graphics & IMC lithography	45 nm
Supported instruction sets	SSE4.1, SSE4.2
Intel® Turbo Boost Technology	1.0

Weight and Dimensions

Depth	340 mm
Width	30 mm
Height	240 mm
Weight	2260 g