New modem, now k/b don't work

[fish_fingers]

I added a Netcomm Roadster modem to my machine. Now the keyboard doesn't work. K/b works fine in DOS, but once in Win95, it doesn't work.
Have tried removing modem, and rebooted - k/b works fine, then Win95 autodetects modem. Reboot, modem runs fine, but no k/b.

:confused:

Device Manager doesn't report any hardware conflicts.

Sys Specs:
P166
64Meg
4.3 Gig HDD
VIA mb
Cirrus Logic 544x (can't remember)

Win95c
Any help?

[golfcart]

Try booting into safe mode and checking device manager for multiple instances of the modem and/or keyboard. If they exist, remove em and start over :)

[fish_fingers]

Thanks Golfcart, :)

There weren't any duplicate refs in safemode, tho. :(

[Explorer]

It's pretty much got to be some type of resource conflict for the keyboard to stop working once Windows installs the modem and assigns IRQs (interrupts) to it.

A keyboard, at least on my system, uses IRQ1. I've never come across a modem that uses IRQ1, but if yours is for some reason, it could be the cause of your problem. Another possiblity is the modem being assigned memory addresses that are the same as the keyboard. Still, a very strange problem.

What IRQ does Windows show it has assigned to the modem after it's installed (normal mode, not safe mode)?

[fish_fingers]

The k/b is on IRQ1
It's IO range is 0060 - 0060 and 0064 - 0064
Is this the same/sim to your k/b IO range?

The **** thing runs like a dream when the modem&drivers are removed.

:confused:
***just read you post correctly :rolleyes:
I haven't got the modem's IO range, b/c I haven't the patience currently with this machine. I think i'll turn it into a boat anchor.
It'l have more use to me.

[Explorer]

Yes, my keyboard IRQ and memory addresses are the same as yours. I'm fairly sure they are standard settings used by all normal keyboards in Windows.

I earn my living as a self-employed computer tech and can never recall a modem installation disabling a keyboard. If the modem is using resources normally assigned to the keyboard by Windows I'd be asking some questions of the supplier and/or manufacturer.

Is this an internal or external modem? Internals can usually be configured as to IRQ which will change the memory addresses although, depending on configuration, the memory addresses can be changed. Externals use the IRQ and memory addresses assigned to the port they are plugged into.

Let us know what you find out once you decide to tackle it again. Assuming it doesn't end up underwater :)

[fish_fingers]

Thanks heaps for you help, Explorer.

One thing that may have a bearing on the problem:
To add the external Netcomm modem, i had to steal a 9 pin ser port from an old dead computer, as the first 9 pin port is used by the mouse. So, I took out the 25 pin port, and added the 9 pin port from the dead comp into the machine.

So now the machine has 2 9pin serial ports.

That shouldn't do anything, as 9 and 25 pin serial ports carry the same lines. (please say they do!;) )so from Windows point of view, a 9 pin should be identical to a 25 pin.

If 9 and 25 pin serials are not identical, therein lies my problem, yeah?

I too have never seen anything like this before. Gonna try a full format/reinstall sometime down the track if no-one can shed any light on this stupid problem.