HP ProBook 450 G1 Notebook PC - Manual (Page 7)

Identifying low battery levels ............................................................................. 34
Resolving a low battery level ............................................................................. 35
Resolving a low battery level when external power is available ....... 35
Resolving a low battery level when a charged battery is available ... 35
Resolving a low battery level when no power source is available .... 35
Resolving a low battery level when the computer cannot exit
Hibernation ....................................................................................... 35
Conserving battery power .................................................................................................. 35
Storing a battery ................................................................................................................ 35
Disposing of a used battery ............................................................................................... 36
Replacing the battery ......................................................................................................... 36
Using external AC power .................................................................................................................... 36
Testing an AC adapter ....................................................................................................... 36
7 Drives ............................................................................................................................................................. 38
Handling drives ................................................................................................................................... 38
Using the optional security screw ....................................................................................................... 38
Removing or replacing the service cover ........................................................................................... 39
Removing the service cover .............................................................................................. 40
Replacing the service cover ............................................................................................... 40
Replacing or upgrading the hard drive ............................................................................................... 41
Removing the hard drive .................................................................................................... 41
Installing a hard drive ......................................................................................................... 43
Using optical drives (select models only) ........................................................................................... 45
Identifying the installed optical drive .................................................................................. 45
Inserting an optical disc ..................................................................................................... 45
Tray-load ........................................................................................................... 45
Removing an optical disc ................................................................................................... 46
Tray-load ........................................................................................................... 46
When the disc tray opens normally .................................................. 46
When the disc tray fails to open ....................................................... 47
8 External cards and devices .......................................................................................................................... 49
Using Media Card Reader cards (select models only) ....................................................................... 49
Inserting a digital card ........................................................................................................ 49
Removing a digital card ..................................................................................................... 49
Using a USB device ........................................................................................................................... 50
Connecting a USB device .................................................................................................. 51
Removing a USB device .................................................................................................... 51
9 Memory modules .......................................................................................................................................... 52
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