Find the main Batch file . BAT and edit it, if it has the sound card settings within the file.
Or look for the sound card.ini file to edit.
Or a .ini file named creative.
You will have to set the, irq number, and the I/O data value plus some other settings.
It helps to know what sound chip, or add in sound card via a pci card slot is in the system.
http://www.computerhope.com/issues/ch000360.htm