IRQ Clashing-Solution needed

[Ravishankar V K]

Sir/madam,

I always connect to Internet using Internal Modem. When I
plugged in a new Ethernet card OS detected the device by
itself. Unfortunately i am unable to run the dialup
connection. Instead i got a blue screen with core dump
error. Also i found that there is some IRQ clashing
between this MODEM AND ETHERNET CARD(both sharing same IRQ
number 9). I uninstalled the ethernet card and dialled. I
am able to connect. But after fixing the ethernet card
again IRQ Clashing takes place.

How to change the IRQ in Windows 2000 or Windows 2000
Server.?

How to solve this issue?

Kindly help me in this regard.
Regards
Ravishankar V K

 

[Guest]

Hey

Look for ESCD in your CMOS, thats WIN 2K's way of
resolving IRQ conflict.

If you want to do it manually, then same thing, you can
assign IRQs (not usually successful) on the same place you
found the ESCD setting.

 

[Colon Terminus]

Okay, so your modem doesn't like to share resources with your NIC. Check your motherboard manual to see which PCI slots share
resources. Place your Modem and NIC in slots that don't share resources.

The following is hypothetical, your mainboard is most likely to be quite different from this - lets assume:

AGP and PCI slot 1 share INTA
PCI slots 2 and 4 share INTB
PCI slot 3 shares INTC with onboard sound
PCI slot 5 uses INTD

That information should tell you how to best arrange the Modem and NIC in the various PCI slots. Using the above example, you'd put
the Modem in PCI slot 2 and leave PCI slot 4 empty. Put the NIC in any other available slot.

Don't worry about Windows 2000 reporting all the devices on IRQ 9, that's a function of ACPI and virtualized IRQs and doesn't have a
whole lot to do with INTA - INTD.

Some mainboards allow you to change the actual IRQ associated with INTA - INTD. With such a mainboard, you would be able to resolve
your conflict without physically moving cards around in slots.