Installing the DSerial-550 or SSerial-550 in Win NT 4.0 Configuration Settings for ISA Cards

Question:

 

I have installed my LAVA card that has jumpers into my operating system correctly. However, when I try to use the card the OS reports that the card is not functioning properly. What should I do?

 

Answer:

 

The answer to this question applies to all LAVA cards that have IRQ jumper settings. To correct this situation it is necessary to make some BIOS setting changes. The following description applies to an Award BIOS version 4.51 PG. Consult your motherboard manual to find equivalent setting changes and how to enter your BIOS setup.

 

Enter PNP CONFIGURATION SETUP.

 

Change RESOURCES CONTROLLED BY from AUTO to MANUAL.

 

Scroll down to the IRQ(s) assigned to our card and change that IRQ from PCI/ISA PnP to Legacy ISA.