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HP EliteBook 2740p User Manual

HP EliteBook 2740p
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Troubleshooting wireless connection problems
Some possible causes for wireless connection problems include the following:
Wireless device is not installed correctly or has been disabled.
Wireless device or router hardware has failed.
Network configuration (SSID or security) has been changed.
Wireless device encountered interference from other devices.
NOTE: Wireless networking devices are included with select computer models only. If wireless
networking is not listed in the feature list on the side of the original computer package, you may add
wireless networking capability to the computer by purchasing a wireless networking device.
Before working your way through the sequence of possible solutions to your network connection
problem, be sure that device drivers are installed for all wireless devices.
Use the procedures in this chapter to diagnose and repair a computer that does not connect to the
network you want to use.
Cannot create a WLAN connection
If you have a problem connecting to a WLAN, confirm that the integrated WLAN device is properly
installed on your computer:
NOTE: Windows includes the User Account Control feature to improve the security of your
computer. You may be prompted for your permission or password for tasks such as installing
software, running utilities, or changing Windows settings. Refer to Windows Help and Support for
more information.
1. Select Start > Control Panel > System and Security.
2. In the System area, click Device Manager.
3. Click the arrow next to Network adapters to expand the list and show all adapters.
4. Identify the WLAN device from the Network adapters list. The listing for a WLAN device may
include the term wireless, wireless LAN, WLAN, Wi-Fi, or 802.11.
If no WLAN device is listed, either your computer does not have an integrated WLAN device, or
the driver for the WLAN device is not properly installed.
For more information on troubleshooting WLANs, refer to the Web site links provided in Help and
Support.
Troubleshooting wireless connection problems 31
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HP EliteBook 2740p Specifications

General IconGeneral
Bus typeDMI
SteppingC2
Tjunction105 °C
Processor cache3 MB
Processor cores2
System bus rate2.5 GT/s
Processor familyIntel® Core™ i5
Processor seriesIntel Core i5-500 Mobile Series
Processor socketBGA 956
Processor threads4
Processor codenameArrandale
Processing Die size81 mm²
Processor frequency2.53 GHz
Processor cache typeSmart Cache
Processor technologyIntel Centrino 2 w/ vPro
Processor lithography32 nm
Processor manufacturerIntel
Processor front side bus- MHz
PCI Express slots version2.0
Processor boost frequency3.07 GHz
Processor operating modes64-bit
ECC supported by processorNo
PCI Express configurations1x16
Thermal Design Power (TDP)35 W
CPU multiplier (bus/core ratio)19
Maximum number of PCI Express lanes16
Number of Processing Die Transistors382 M
Display-
Modem speed56 Kbit/s
Battery typeHP Long Life 6-cell (39 WHr) Lithium-Ion Primary Battery
Graphics cardHD Graphics
Internal modemYes
Expansion slots1 Express Card/34; 1 Smart Card Reader; 1 secure digital/MultiMedia card
Video card noteMicrosoft DirectX 10 (Shader 4.0) and OpenGL 2.1 capable, with DDR3 system memory
Dimensions (WxDxH)290 x 212 x 31.7 mm
Power requirementsExternal 65W Smart AC adapter; Power cord (1.8 meters, with AC adapter 3.66 meters); HP Fast Charge
HDD controller typeSolid State Drive SATA II (5400 rpm)
Wireless technologyIntel 802.11a/b/g; HP Integrated Module with Bluetooth 2.1 Wireless Technology
Maximum HDD capacity320 GB
Intel segment taggingEnterprise
Minimum storage drive space160 GB
Compatible operating systemsGenuine 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 version2.1+EDR
Networking featuresIntegrated 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 slots2x SO-DIMM
Memory upgrade8 GB
Internal memory4 GB
Memory clock speed1333 MHz
HDD capacity0 GB
SSD capacityThe Solid State Drive's storage capacity in Gigabytes.
Display diagonal12.1 \
Display resolution1280 x 800 pixels
Native aspect ratio16:10
Audio systemHD
Audio includedHigh 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 chipsetIntel® QM57 Express
I/O ports3 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 typeDC-in jack
USB 2.0 ports quantity3
Firewire (IEEE 1394) ports1
Number of battery cells6
Trial softwareWinZip 12; Microsoft Office Professional 2007; HP SkyRoom
Bundled softwareHP 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 installedWindows 7 Professional
Form factorConvertible (Swivel)
Product typeHybrid (2-in-1)
Country of originChina
Storage drive type160 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 typeHP spill-resistant keyboard, HP Night Light shines directly on the keyboard for low-light conditions
Keyboard layoutQWERTY
Processor ARK ID43544
Processor package sizerPGA 37.5x 37.5, BGA 34x28 mm
Graphics & IMC lithography45 nm
Supported instruction setsSSE4.1/4.2
Intel® Turbo Boost Technology1.0
Physical Address Extension (PAE)36 bit
On-board graphics card modelIntel® HD Graphics
On-board graphics card base frequency500 MHz
On-board graphics card dynamic frequency (max)766 MHz
Weight and Dimensions IconWeight and Dimensions
Depth212 mm
Width290 mm
Height31.7 mm
Weight1720 g

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