TITLE:      Advanced Gravis Tech Note #4
AREA:       SBOS
DATE:       December 15, 1992
KEY WORDS:  SBOS INSTALL GAME MIDI IRQ PCM ERROR
REFERENCES:

SUBJECT: If a game doesn't work, don't change the GUS's settings.

The GUS Midi IRQ is used by SBOS.  SBOS will ONLY work properly if the
original SBs IRQs 2,3,5 or 7 are used.  SBOS will return a "Invalid PCM
interrupt" error otherwise.  As with the original SB, DMA channel #1 is
used by SBOS regardless of what the GUS's DMA's are set to and can't
currently be changed.  If settings must be changed, because of a
confirmed conflict, the GUS SETUP.EXE should be used.