HP Pavilion dv4-5110us Entertainment Notebook PC - Manual (Page 9)

Changing the computer boot order ................................................... 82
12 Specifications .............................................................................................................................................. 83
Input power ......................................................................................................................................... 83
Operating environment ....................................................................................................................... 84
13 Troubleshooting and support .................................................................................................................... 85
Troubleshooting .................................................................................................................................. 86
Disc drive problems ........................................................................................................... 86
Wireless connection problems ........................................................................................... 86
Cannot connect to a WLAN ............................................................................... 87
Cannot connect to a preferred network ............................................................. 87
Current network security codes are unavailable ............................................... 87
WLAN connection is very weak ......................................................................... 88
Cannot connect to the wireless router ............................................................... 88
Network status icon is not displayed ................................................................. 88
Audio problems .................................................................................................................. 89
Power management problems ........................................................................................... 89
Resolving a low battery level ............................................................................. 89
Resolving a low battery level when external power is available ....... 89
Resolving a low battery level when no power source is available .... 90
Resolving a low battery level when the computer cannot exit
Hibernation ....................................................................................... 90
Troubleshooting an AC adapter ........................................................................ 90
Contacting customer support ............................................................................................................. 91
14 Electrostatic Discharge .............................................................................................................................. 92
Index ................................................................................................................................................................... 93
ix