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Modem Installation on NT 4.0 SP5

By grmcintire ·
Hello all. I am working on installing a modem for one of the users here at work. We run an all Windows NT 4.0 shop. The system is an old (I do mean old, around 3-4 if not 5 years old) Pentium 90 (may be 100) MHz with 32 MB RAM. The system itselfruns fine. However, I took a working modem out of one user's system, placed it in this machine, and NT doesn't see it. In fact, it doesn't even go look at the COM port the jumpers are set to (COM 3).

I've changed COM settings to 1, 2, and even 4, with the only change being a disabled mouse when set to COM 1 (go figure ). Well, it's an old modem. So I ordered a brand new 3COM 56k Fax/Modem.

Put this in after setting the jumpers to COM 3, and it's still not recognized. I went to Control Panel...Ports and noted COM 2 was already installed. Installed COM 3, rebooted, set the jumpers to COM 3, nothing. The trouble is, when detecting the modem, it doesn't even search on the COM port it's installed on!

So I figured it must be the machine. So I grabbed a different system, still a Pentium 100 (hey, we're stingy, what can I say?). This particular machine has no COM ports installed, and as such doesn't even search when told to detect the modem. I went into BIOS on this machine and enabled COM 2. I set the modem to COM 2 and it went looking...on the external COM port (which of course had nothing on it). Modem was not detected.

Now I KNOW I've installed a modem in NT before, and that modems were installed on these old systems once before. What am I missing?

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Modem Installation on NT 4.0 SP5

by lucard In reply to Modem Installation on NT ...

Well, everybody knows that WinNT is not a pnp OS, but it still has enough pnp ability to keep the admin from going mad. So, first of all set the modem to pnp. Then go to CMOS and preserve only COM1. Remove RAS from that computer and then install it again. During setup you will be prompted to indicate a RAS capable device. This is the point where the modem will be detected and you'll have to install the drivers. After that reinstall Service Pack 6.0. It always worked for me.

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Modem Installation on NT 4.0 SP5

by grmcintire In reply to Modem Installation on NT ...

The question was auto-closed by TechRepublic

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Modem Installation on NT 4.0 SP5

by James_Randy In reply to Modem Installation on NT ...

It could be many things, but first things first. I'll assume that your serial mouse is configured for COM1, and you would install the modem on COM2. You have to disable COM2 in the system BIOS before NT will recognize the existance of a modem in that port. You may have to search a bit, but go into the BIOS, go to the "integrated peripherials" section, look for the COM2 selection - it might say "onboard serial port 2" (or something like that), then toggle through (probably with page up/page down) the available selections until "disable" appears, select disable & exit the BIOS making sure you save your changes. That's the first step. I would also select a "standard modem" when configuring the device instead of using the manufacturer's disk. I would also use an external US Robotics modem, which seems the most "NT friendly". I could go on and on, but I hope this helps. Good luck.

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Modem Installation on NT 4.0 SP5

by grmcintire In reply to Modem Installation on NT ...

The question was auto-closed by TechRepublic

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Modem Installation on NT 4.0 SP5

If you are using a ISA card in this system and it is PNP, you may need to load the ISA PNP service from the NT CD. I have expereinced ISA cards failing to be detected or only being partly detected, after loading the ISA PNP service the device prompted for further drivers and worked frist time. Yoju can check the services section in you control panel and scroll down to find the PNP for ISA. My system is running a standard NT install and the service isn't present. But I don't have any ISA cards.

Also take a indepth look at what readme files are in the NT driver directory for the modem, you should find some more helpfull tips.

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Modem Installation on NT 4.0 SP5

by grmcintire In reply to Modem Installation on NT ...

The question was auto-closed by TechRepublic

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Modem Installation on NT 4.0 SP5

by COsloot In reply to Modem Installation on NT ...

I only have one thing. I am not an NT expert but I worked on a five year Compaq Pent 100 this spring which is from the same era of your computer. I tried to replace the 14.4 standard internal modem and ending up having to get 56K ISA modem, jumper the Com port to three and set the card for Plug and Play. Usually you either do one or the other. In this instance I was using Win 95. In this system disabling the com ports in the bios showed up in my diag programs but the Plug and Plug modems could not be forced to use them through the operating system for some reason. I could not get a PCI modem to work at all. Compaq's response was for me to purchase a Compaq 14.4 modem for the customer and would not support a 56K modem.

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Modem Installation on NT 4.0 SP5

by grmcintire In reply to Modem Installation on NT ...

The question was auto-closed by TechRepublic

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Modem Installation on NT 4.0 SP5

by jonathan.sher In reply to Modem Installation on NT ...

I think that you should start with the basics.
1) Check the bios, make sure that it is the lastest version from the vendor.
2) Use some air and spray out the slot there must be tons of dust in there.
3) Try another slot and another peripheral in that slot. Some peripherals are slot sensitive and sometimes the slots just don't work.
4) Upgrade to Service pack 6A

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Modem Installation on NT 4.0 SP5

by grmcintire In reply to Modem Installation on NT ...

The question was auto-closed by TechRepublic

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