HP ProBook 4445s User Manual page 7

Conserving battery power .................................................................................................. 41
Storing a battery ................................................................................................................ 41
Disposing of a used battery ............................................................................................... 42
Replacing the battery ......................................................................................................... 42
Using external AC power .................................................................................................................... 42
Testing an AC adapter ....................................................................................................... 42
7 Drives ............................................................................................................................................................. 44
Handling drives ................................................................................................................................... 44
Using the optional security screw ....................................................................................................... 44
Removing or replacing the service door ............................................................................................. 45
Removing the service door ................................................................................................ 45
Replacing the service door ................................................................................................ 46
Replacing or upgrading the hard drive ............................................................................................... 47
Removing the hard drive .................................................................................................... 47
Installing a hard drive ......................................................................................................... 49
Using optical drives (select models only) ........................................................................................... 50
Identifying the installed optical drive .................................................................................. 50
Inserting an optical disc ..................................................................................................... 50
Removing an optical disc ................................................................................................... 50
8 External cards and devices .......................................................................................................................... 53
Using Media Card Reader cards (select models only) ....................................................................... 53
Inserting a digital card ........................................................................................................ 53
Removing a digital card ..................................................................................................... 53
Using a USB device ........................................................................................................................... 54
Connecting a USB device .................................................................................................. 55
Removing a USB device .................................................................................................... 55
Using optional external devices .......................................................................................................... 55
Using optional external drives ............................................................................................ 56
Resolving a low battery level ............................................................................. 41
Resolving a low battery level when external power is available ....... 41
Resolving a low battery level when a charged battery is available ... 41
Resolving a low battery level when no power source is available .... 41
Resolving a low battery level when the computer cannot exit
Hibernation ....................................................................................... 41
Tray-load ........................................................................................................... 50
Tray-load ........................................................................................................... 50
When the disc tray opens normally .................................................. 50
When the disc tray fails to open ....................................................... 51
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