HP omnibook OBXT1500, Справочное руководство, Страница: 107 / 156

Troubleshooting and Maintenance
Getting Assistance for Your Notebook
Reference Guide 107
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Use the memory troubleshooter in Windows Help and Support.
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If you are having memory problems while running MS-DOS programs, use the
application and software problems troubleshooter in Windows Help and Support.
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Not all third-party memory cards have been tested for use with the notebook. Please
check the HP Notebook web site (www.hp.com/notebooks) for a list of approved and
tested memory cards.
•
Test your notebook’s memory with the e–Diagtools diagnostics—see “Testing the
Hardware” on page 119.
If memory doesn’t increase after adding RAM
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Make sure your notebook is using only DDR 266 RAM modules.
Modem problems
If the modem seems slow
•
Check for excess static or noise on the line, which reduces the overall transmission
speed. If necessary, contact your telephone company about fixing this type of
problem.
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If you’re dialing internationally, line noise is often difficult or impossible to
eliminate.
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If you have call-waiting, disable it—your telephone company can provide
instructions.
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Eliminate extra connections in the line. If possible, connect directly to the wall jack.
•
Try another telephone line, preferably one normally used for a fax machine or
modem.
If the modem doesn’t dial or no dial tone is detected
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Check all cables and connections.
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Connect a standard telephone to the phone line and make sure the line is working.
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Make sure someone else isn’t using the same phone line.
•
Try another telephone line, preferably one normally used for a fax machine or
modem.
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If you’re in a foreign country/region, the dial tone may not be recognized by the
modem. Click Start, Control Panel, Printers and Other Hardware, Phone and Modem