Power Surges And Sags; Electrical Storms - HP Compaq Presario,Presario 7479 Reference Manual

Power Surges
If power surges or sags occur, the display and status lights may flicker and the
and Sags
computer may automatically restart. If an improper shutdown occurs, ScanDisk, a
Microsoft Windows utility program, will automatically run when power is restored to
the computer. ScanDisk will determine if the improper shutdown caused any errors
on the hard disk. These errors may occur if the Microsoft Windows operating system
was not able to properly close all files before the shutdown. If no errors are found, the
restart process will continue. If ScanDisk does detect errors, follow the instructions
shown to continue the restart process. Work that was not saved prior to the lockup
may be lost.
Using a Surge
Use of a surge suppressor, line conditioner, or uninterruptible power supply (UPS)
Suppressor
may help to protect your computer from damage that may be caused by power surges
or sags.
Restarting Your
If a power failure occurs or you accidentally disconnect the power cord while the
Computer After
computer is turned on, turn off the computer until you are sure normal service has
been restored. The next time you turn on the computer, ScanDisk may run to check
a Power Failure
the hard drive for errors that may have been caused by the improper shutdown.
Electrical
If you are expecting an electrical storm to pass through your area, it is a good idea to
Storms
ensure that your Internet PC is properly turned off. You should disconnect the modem
line from the telephone wall jack and remove all the computer power cords from
electrical outlets.
2-4 Turning On and Turning Off Your Internet PC