HP ProBook 6555b User Manual

Troubleshooting ................................................................................................................. 56
The optical disc tray does not open for removal of a CD, DVD, or BD ............. 56
The computer does not detect the optical drive ................................................ 57
A disc does not play .......................................................................................... 58
A disc does not play automatically .................................................................... 59
A movie stops, skips, or plays erratically .......................................................... 59
A movie is not visible on an external display ..................................................... 59
The process of burning a disc does not begin, or it stops before
completion ......................................................................................................... 59
A device driver must be reinstalled ................................................................... 60
Obtaining the latest HP device drivers ............................................. 60
Obtaining Microsoft device drivers ................................................... 60
Webcam (select models only) ............................................................................................................ 62
Adjusting webcam properties ............................................................................................. 62
5 Power management
Setting power options ......................................................................................................................... 64
Using power-saving states ................................................................................................. 64
Initiating and exiting Sleep ................................................................................ 64
Initiating and exiting Hibernation ....................................................................... 65
Using the battery meter ..................................................................................................... 65
Using power plans ............................................................................................................. 65
Viewing the current power plan ......................................................................... 66
Selecting a different power plan ........................................................................ 66
Customizing power plans .................................................................................. 66
Setting password protection on wakeup ............................................................................ 66
Using Power Assistant (select models only) ...................................................................................... 67
Starting Power Assistant .................................................................................................... 67
Using external AC power .................................................................................................................... 67
Connecting the AC adapter ............................................................................................... 68
Using battery power ........................................................................................................................... 69
Finding battery information in Help and Support ............................................................... 69
Using Battery Check .......................................................................................................... 69
Displaying the remaining battery charge ........................................................................... 70
Inserting or removing the battery ....................................................................................... 70
Charging a battery ............................................................................................................. 71
Maximizing battery discharge time .................................................................................... 72
Managing low battery levels .............................................................................................. 72
Identifying low battery levels ............................................................................. 72
Resolving a low battery level ............................................................................. 73
Resolving a low battery level when external power is available ....... 73
Resolving a low battery level when a charged battery is
available ........................................................................................... 73
Resolving a low battery level when no power source is
available ........................................................................................... 73
Resolving a low battery level when the computer cannot exit
Hibernation ....................................................................................... 73
Calibrating a battery ........................................................................................................... 73
Step 1: Fully charge the battery ........................................................................ 73
Step 2: Disable Hibernation and Sleep ............................................................. 74
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HP ProBook 6555b Specifications

General

Graphics	ATI Mobility Radeon HD 4250
Chipset	AMD M880G
Processor	AMD Turion II, AMD Athlon II
Display	15.6-inch diagonal LED-backlit HD anti-glare (1366 x 768 resolution)
Memory	Up to 8 GB DDR3 SDRAM
Storage	320 GB, 250 GB, or 160 GB 7200 rpm SATA II HDD
Operating System	Genuine Windows 7 Professional, FreeDOS
Battery	6-cell lithium-ion
Optical Drive	DVD+/-RW SuperMulti DL
Networking	Gigabit Ethernet, Wi-Fi 802.11a/b/g/n, Bluetooth
Audio	High Definition Audio, stereo speakers, microphone
Ports	3 USB 2.0, VGA, HDMI, RJ-45, headphone/microphone combo jack
Card Reader	5-in-1
Webcam	2 MP Webcam (optional)