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COM3: using IRQ 5

Posted on 1997-11-02
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Last Modified: 2013-12-29
Hello,

I am using an internal modem. As I do not want that it
conflicts with COM1: and COM2: I have configured the
modem to "use" COM3: with IRQ 5.

No problem under NT 4.0 as I can assign any IRQ to any
COMx. But Windows 95 does not allow me to use IRQ 5 for
COM3 and insists that COM3: must use IRQ 3 or 4.

I hope that the restriction is only due to the GUI, and that
I can (maybe in an ini file) configure the IRQ to COM3:
according to my needs.

Bye
Wolfgang
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Question by:wth
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Accepted Solution

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magigraf earned 150 total points
ID: 1699376
Wolfbang...

Under win95 you could still force any peripheral to use ANY free IRQ. But in order to do so you would have to follow carrefully these steps:

1) On your desktop, right click om MY Computer, and select    properties
2) Select Device Manager Tab, once in there, click on the bottom    button "Properties" and check for the IRQ 5 to see if it's    available or used by another device (like your sound card    which normally occupy that IRQ)
3) If the IRQ is actually FREE. (we continue step 4)
4) While in the same window (Device Manager) expand the modem    section and select your Modem.
5) Again click on properties in the bottom and select the    Resources TAB.
6) There you would see the Address and IRQ assigned to the modem.
7) Uncheck the Automatic settings, and start selecting from the    section above "Setting based on"
8) Now one of these configuration might immediately assign the    IRQ and address you want.
9) If you don't find it just click in the white window on the    Interrupt request or address to set it manually.
10) Now click on change setting, and here force it to IRQ5.

Now this should take care of setting your modem MANUALLY to whatever address and IRQ you have free on your computer.

IMPORTANT:
==========
Now the most important part is your modem itself, which should be JUMPERED to the same settings (ADDRESS & IRQ).  if you leave all jumpers out, you are telling windows to take control through the PLUG & PLAY feature.

Hope this helped, if you need more info just post.
Regards

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