Hayes H08-15530, User Manual

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Troubleshooting 17
Assigning an IRQ: Only computers with an updated
BIOS will be able to assign an available IRQ to the
PCI slot on the motherboard. Check your computer’s
documentation, or the motherboard itself, for the
number of the PCI slot.
If you have a VIA Chip-based motherboard: Com-
puters with this chipset, particularly those running
Windows 98, frequently have problems installing PCI
modems unless the VIA IRQ Routing Miniport Driver
is installed.
If your computer’s user’s manual doesn’t tell you if
your motherboard is VIA chipset-based, you need to
look on the motherboard itself to check. If you do
have a VIA Chip-based motherboard, you can
download VIA’s IRQ Routing Miniport Driver from:
www.via.com.tw/support/faq.htm .
Problem
:
Your modem seems to install under Windows 95,
98, Me, 2000 or XP, but Windows cannot find it
later.
Solution
:
If your computer has a built-in modem on the moth-
erboard, Windows may reinstall it the next time you
start up. Consult your computer’s documentation or
call your computer’s manufacturer to get instructions
on how to disable the built-in modem.
Problem: The software cannot find the modem and the
modem does not respond to AT commands. (The
following comment applies to many other prob-
lems as well.)
Solution
:
The most common error with modems is that the
communications software is not configured for the
same COM port as the modem. Check which COM
port the modem is using. Make sure that the soft-
ware’s COM port setting matches the modem’s COM
port setting.
Another problem is that COM port resources may be
in use by another device. Make sure that the COM
port resources used by the modem are not being
used by any other device, such as a soundcard.
Problem
:
You type an AT command line in a terminal ap-
plication and press Enter, but your modem fails