The actual reasons for merlin u630 problem

In my previous article,
http://mrvtech.blogspot.com/2008/02/novatel-merlin-u630-vodafone-drivers.html

I made several suppositions about the reasons for the Merlin u630 modem 3G card issues that caused it not to work with default configuration (aka automatic settings in resources tab of device manager).

After some more investigation I know now that it conflicts with the I/O Range for a serial port. All I had to do then was to change said I/O space used by the multifunction adapter. The one that is used by default is the one that is also used by COM2 and it fails.

One configuration that works correctly and totally (even after reboots) on my HP Compaq 8510w is then this one:
I/O Range: 02F0-02F7
I/O Range: 0180-0187
IRQ 16
Memory Range 000DD000-000DDFFF
Memory Range 000DC000-000DCFFF

All I had to do was to change the default I/O range for the SECOND I/O Range.

I hope it could help some other people...