Toshiba Portege R100 User Manual - Page 192

PC Card problems, The computer emits a loud, high-pitched noise.

Page 192 highlights

192 If Something Goes Wrong Resolving a hardware conflict The computer emits a loud, high-pitched noise. This is feedback between the microphone and the speakers. It occurs in any sound system when input from a microphone is fed to the speakers and the speaker volume is too loud. Adjust the volume control. Changing the settings for the Record Monitor feature in the Recording Control Utility (default Off), or the Mute feature in the Mixer Utility (default Enabled), may cause feedback. Revert to the default settings. PC Card problems PC Cards (PCMCIA-compatible) include many types of devices, such as a removable hard disk, additional memory, or a pager. Most PC Card problems occur during installation and setup of new cards. If you're having trouble getting one or more of these devices to work together, several sections in this chapter may apply. Resource conflicts can cause problems when using PC Cards. See "Resolving a hardware conflict" on page 179. Card Information Structure When you insert a PC Card into a slot, the computer attempts to determine the type of card and the resources it requires by reading its Card Information Structure (CIS). Sometimes the CIS contains enough information for you to use the card immediately. Other cards must be set up before you can use them. Use the Add Hardware wizard to set up the card. Refer to your Microsoft® documentation for more information, or refer to the documentation that came with the PC Card. Some card manufacturers use special software called enablers to support their cards. Enablers result in nonstandard configurations that can cause problems when installing the PC Card.

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192
If Something Goes Wrong
Resolving a hardware conflict
The computer emits a loud, high-pitched noise.
This is feedback between the microphone and the speakers. It
occurs in any sound system when input from a microphone is
fed to the speakers and the speaker volume is too loud. Adjust
the volume control.
Changing the settings for the Record Monitor feature in the
Recording Control Utility (default Off), or the Mute feature
in the Mixer Utility (default Enabled), may cause feedback.
Revert to the default settings.
PC Card problems
PC Cards (PCMCIA-compatible) include many types of
devices, such as a removable hard disk, additional memory,
or a pager.
Most PC Card problems occur during installation and setup
of new cards. If you’re having trouble getting one or more of
these devices to work together, several sections in this chapter
may apply.
Resource conflicts can cause problems when using PC Cards.
See
“Resolving a hardware conflict” on page 179
.
Card Information Structure
When you insert a PC Card into a slot, the computer attempts
to determine the type of card and the resources it requires by
reading its Card Information Structure (CIS). Sometimes the
CIS contains enough information for you to use the card
immediately.
Other cards must be set up before you can use them. Use the
Add Hardware wizard to set up the card. Refer to your
Microsoft
®
documentation for more information, or refer to
the documentation that came with the PC Card.
Some card manufacturers use special software called
enablers
to support their cards. Enablers result in
nonstandard configurations that can cause problems when
installing the PC Card.