HP omnibook 510 Manuale Di Servizio

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Troubleshooting and Maintenance 
 
Troubleshooting Your Computer 
  
Reference 
Guide 
123 
If the Time Remaining for the battery is not correct 
•  The Time Remaining is an estimate based on the rate at which the computer is using 
power at the moment, and so assumes that you will continue using power at that rate 
until the battery runs out. So, if you check the Time Remaining while the computer is 
using a good deal of power (such as when reading from a CD or DVD), the value will 
likely show less time remaining than you really have, since you will probably later 
switch to tasks that require less power. 
If the computer doesn’t suspend to Standby mode as expected 
•  If you have a connection to another computer, the computer won’t suspend if the 
connection is active. 
•  If the computer is performing an operation, it normally waits for the operation to 
finish before suspending. 
If the computer doesn’t automatically hibernate as expected 
•  For Windows 2000 or XP, make sure hibernate support is enabled: from Control 
Panel, open Power or Power Options, then click the Hibernate tab. 
Also, check the Power Schemes tab. Make sure the Hibernate timeouts for both AC 
power and battery power are not set to Never.  
•  For Windows 98, check the Hibernate timeout in BIOS Setup—see “To run the BIOS 
Setup utility” on page 131. 
If your computer has more than 512 MB of RAM, you must expand the Utility 
partition on the hard disk—see “To recover the factory installation of your hard disk” 
on page 138.  
If the Standby option is missing from the Shut Down window 
•  Do not allow Windows 98 to disable APM. It may prompt you to do this in certain 
situations—always answer “No”. 
•  If the Windows 98 Standby option is missing, restore it as follows: 
1.  In Control Panel, double-click System. 
2.  On the System Manager tab, expand the System Devices, select Advanced Power 
Management, and click Remove. 
3.  Restart the computer. 
4.  In Control Panel, double-click Add New Hardware, and follow the prompts to 
install support for APM. 
5.  Restart the computer.