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Fax Modem Setup Problems

Most modems are internal 56Kbs and most are PCI modems.  The PCI Modems are strictly designed to be used with MMX capable processors.  For example a CPU less than Pentium 166 or other processors less than 166Mhz, were made before MMX was incorporated into CPUs.   For such older PCs, a 56Kbs ISA (Non-MMX version) should be available.

Generally speaking providing you are using a modern internal PCI 56kbs modem and have a least one com port free, then there should be no trouble setting up a modem (Windows98, WindowsME will detect the modem and ask for the driver and then complete the setup.   

If you do not have a com port free then consider an external modem, or an ISDN adapter.

Problems that can occur when trying to setup an older type of modem are:

·         You may need to detect the com port first

On many faxmodems today, the modem will be detected either on re-start-up after the modem software is loaded, or after using Control Panel, Modems <detect modem>and then installing the software (drivers).

Some modems however will not detect even after setting up the software and using Control Panel, Modems. In these cases you need first to detect the Communiactions Port that the modem is introducing, by using Control Panel, Add New Hardware. Once this is done, on using Control Panel, Modems the detection can take place.

·  You may need to disable a com port in the BIOS Setup

Some modems will cause a conflict BEFORE windows is loaded e.g: Conflict on 02F8' This is because the modem is set to use that address when that address is already set by the motherboard for a Com Port.

This is easy to fix, just disable the Port in the BIOS setup (press Delete when the computer starts, then go to Integrated Peripherals in the full standard BIOS - (note here that some manufacturers overlay a lesser BIOS on top of the standard, so that you cannot effect the system - usually also so that you have to go back to them for a charged service. If you can't find the Com Port settings anywhere in the BIOS, contact the PC manufacture).

Assuming the Com Port settings are available, select the correct port and set it to 'Disabled'. Exit Setup and save the changes. For more info on Ports and their addresses seeHardware Tips P2.html - FXMods 

·         You need to reset an older modem manually

An older may need to have jumpers on the modem set to use a different port setting. This means setting the port and interrupt. Refer to you modem manual to do this. You can see more detail at Hardware Tips P2.html - FXMods

 

A Common problem with older AT systems is connection of the mouse whereby it switches resources of the modem. The AT motherboard and case is such that there are 2 serial com ports at the rear of the PC, Com1 and Com2. If the mouse was originally on Com1, but say after moving the PC the mouse was then fitted to the identical Com2, the modem resources would be changed. To check on this use Start,Settings,Control Panel,Modems, Diagnostic tab. There you will see a list of Com ports showing where the mouse and modem are currently configured to. The mouse is normally on Com1 and the Modem on Com2 or Com4 or even Com3(which shares the same interrupt as Com1). If you do not know about Ports or Interrupts then see Hardware Tips P2.html - FXMods

 

It is possible tat a Com port on the motherboard is defective. This would effect the modem detection. For example:

If the modem is to automatically set to COM2 and the mouse by windows default is usually on COM1. If COM1 is defective then Windows will re-set the mouse to COM2 and thereby cause a conflict with the Modem. The mouse will take precedence and still work, but the Modem will not and therefore not detect.

To get over such a problem, install a PS2 Mouse, either on the port provided at the back of the PC (ATX Case), or by an added cable from the motherboard (older AT Cases - refer to motherboard manual for location of PS2 port pins).

Once a mouse is on the PS2 port, then COM2 will be free for the Modem.

 

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