HP EliteBook 2740p User Manual

3. Pivot the battery upward (2), and remove the battery from the computer (3).
Charging a battery
WARNING! Do not charge the computer battery while you are onboard aircraft.
The battery charges whenever the computer is plugged into external power through an AC adapter,
an optional power adapter, an optional expansion product, or an optional docking device.
The battery charges whether the computer is off or in use, but it charges faster when the computer is
off.
Charging may take longer if a battery is new, has been unused for 2 weeks or more, or is much
warmer or cooler than room temperature.
To prolong battery life and optimize the accuracy of battery charge displays, follow these
recommendations:
●
If you are charging a new battery, charge it fully before turning on the computer.
●
Charge the battery until the battery light turns off.
NOTE: If the computer is on while the battery is charging, the battery meter in the notification
area may show 100 percent charge before the battery is fully charged.
●
Allow the battery to discharge below 5 percent of a full charge through normal use before
charging it.
●
If the battery has been unused for one month or more, calibrate the battery instead of simply
charging it.
The battery light displays charge status:
●
On: The battery is charging.
●
Blinking: The battery has reached a low battery level or critical battery level and is not charging.
●
Off: The battery is fully charged, in use, or not installed.
Maximizing battery discharge time
Battery discharge time varies, depending on the features you use while on battery power. Maximum
discharge time gradually shortens as the battery storage capacity naturally degrades.
Using battery power 75
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HP EliteBook 2740p 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 i5-500 Mobile Series
Processor socket	BGA 956
Processor threads	4
Processor codename	Arrandale
Processing Die size	81 mm²
Processor frequency	2.53 GHz
Processor cache type	Smart Cache
Processor technology	Intel Centrino 2 w/ vPro
Processor lithography	32 nm
Processor manufacturer	Intel
Processor front side bus	- MHz
PCI Express slots version	2.0
Processor boost frequency	3.07 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)	19
Maximum number of PCI Express lanes	16
Number of Processing Die Transistors	382 M
Display	-
Modem speed	56 Kbit/s
Battery type	HP Long Life 6-cell (39 WHr) Lithium-Ion Primary Battery
Graphics card	HD Graphics
Internal modem	Yes
Expansion slots	1 Express Card/34; 1 Smart Card Reader; 1 secure digital/MultiMedia card
Video card note	Microsoft DirectX 10 (Shader 4.0) and OpenGL 2.1 capable, with DDR3 system memory
Dimensions (WxDxH)	290 x 212 x 31.7 mm
Power requirements	External 65W Smart AC adapter; Power cord (1.8 meters, with AC adapter 3.66 meters); HP Fast Charge
HDD controller type	Solid State Drive SATA II (5400 rpm)
Wireless technology	Intel 802.11a/b/g; HP Integrated Module with Bluetooth 2.1 Wireless Technology
Maximum HDD capacity	320 GB
Intel segment tagging	Enterprise
Minimum storage drive space	160 GB
Compatible operating systems	Genuine Windows Vista Enterprise 32; Genuine Windows Vista Enterprise 64; Genuine Windows 7 Home Premium; SuSE Linux Enterprise 10
Main camera resolution (numeric)	2 MP
Bluetooth version	2.1+EDR
Networking features	Integrated Intel 82577 Gigabit Ethernet (10/100/1000 NIC)
Operating temperature (T-T)	5 - 35 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	10 - 90 %
Memory slots	2x SO-DIMM
Memory upgrade	8 GB
Internal memory	4 GB
Memory clock speed	1333 MHz
HDD capacity	0 GB
SSD capacity	The Solid State Drive's storage capacity in Gigabytes.
Display diagonal	12.1 \
Display resolution	1280 x 800 pixels
Native aspect ratio	16:10
Audio system	HD
Audio included	High Definition Audio support with 24-bit DAC, Integrated stereo speakers, Integrated dual-microphone array, Touch-sensitive controls for volume up, volume down, and mute, Combo headphone/mic jack
Motherboard chipset	Intel® QM57 Express
I/O ports	3 USB 2.0; 1 1394a; 1 AC power; 1 combo stereo headphone/mic jack; 1 docking connector; 1 RJ-11; 1 RJ-45; 1 secondary battery connector; 1 VGA-in
Charging port type	DC-in jack
USB 2.0 ports quantity	3
Firewire (IEEE 1394) ports	1
Number of battery cells	6
Trial software	WinZip 12; Microsoft Office Professional 2007; HP SkyRoom
Bundled software	HP Recovery Manager; HP Support Assistant; HP QuickLaunch Buttons; HP QuickLook 3; HP QuickWeb; HP DayStarter; HP Power Assistant; HP Connection Manager; HP Wireless Assistant
Operating system installed	Windows 7 Professional
Form factor	Convertible (Swivel)
Product type	Hybrid (2-in-1)
Country of origin	China
Storage drive type	160 GB Solid State Drive SATA II Hard Drive 160, 250 or 320 GB (5400 rpm), Solid State Drive 80 or 160 GB, HP 3D DriveGuard
Keyboard type	HP spill-resistant keyboard, HP Night Light shines directly on the keyboard for low-light conditions
Keyboard layout	QWERTY
Processor ARK ID	43544
Processor package size	rPGA 37.5x 37.5, BGA 34x28 mm
Graphics & IMC lithography	45 nm
Supported instruction sets	SSE4.1/4.2
Intel® Turbo Boost Technology	1.0
Physical Address Extension (PAE)	36 bit
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

Weight and Dimensions

Depth	212 mm
Width	290 mm
Height	31.7 mm
Weight	1720 g