Actiontec electronic 56K V.90 manual Windows NT

BIOSs don’t allow individual selection of interrupts for ISA, Plug-N-Play, or PCI.) The interrupt settings can be called “ICU”, “ICU/PCI”, “PCI”, or “PNP depending on your BIOS version and manufacturer. Do not set this interrupt to “ISA” only or to “Legacy ISA”. Be sure to Save the settings before exiting the BIOS Setup.

Under some situations, you will find that freeing an interrupt does not solve your installation difficulties. This could be due to another peripheral device stealing the interrupt you just provided. Certain full-featured sound cards require three IRQs to support all their functions. When one becomes available, they take it. This situation requires that you remove your sound card, free an interrupt, install the modem and verify its operation, and then reinstall the sound card. This procedure may also work for sound cards that have lost their sound after the modem has been installed or if the modem will not install in a system with a sound card.

Proceed to “Installing the Modem”.

Windows NT 4.0

Windows NT installation problems are always due to inadequate preparation. The following conditions must be meet before attempting to install the modem or it will not be seen or correctly installed by the system. (See “Do This First” at the beginning of this manual.)

•You must have the latest Windows NT Service Pack installed.

•There must be two IRQ and two I/O port Addresses available for the modem to use.

•The installation utility must be copied from the installation CD-ROM to the default hard drive and extracted.

If you need help on freeing an interrupt or making a COM Port available, see the Windows 95/98 “Does Not Install” section for a discussion of this topic. The “Spe- cial Situations” and “Plug-N-Play BIOS” sections also apply to Windows NT 4.0. See these areas for guidelines. If you are upgrading or removing the drivers, use the installation utility on the Windows NT installation diskette that came with your PCI modem. This utility has an option for removing the modem drivers.

If you are not familiar with changing the settings within your system BIOS setup, you should skip the following system pre-installation procedure and go to “Installing the Modem.” Refer back to this area only if you have a problem installing the mo- dem.

Check your system BIOS IRQ assignments and make sure that at least two interrupts have been assigned to the PCI bus. In your system’s BIOS Setup routine, find the

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