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Interrupt Conflict
IRQ 5 is the standard setting of the soundcard in the SB mode. This is also a standard setting in
most DOS games. The following table illustrates the interrupt distribution in a standard PC.
Please also note that interrupt 15 is used for the second enhanced IDE interface when an ATAPIIDE CD-ROM drive is connected to the SoundSystem Maestro32/96. If this interface already
exists, either on the motherboard or in a separate controller, you are advised to use this interface.
IRQ0
Interrupt
Applications (based on AT machine)
System timer
IRQ1
Keyboard
IRQ2
Video adapter or network adapter
IRQ3
Free or used by COM Port 2
IRQ4
COM Port 1
IRQ5
Parallel printer 2 / May be used by soundcard
IRQ6
Disc controller
IRQ7
Parallel Printer 1 / Default used by soundcard
IRQ8
Real-time clock
IRQ9
Video adapter or network adapter / May be used by soundcard
IRQ10
Free / May be used by soundcard
IRQ11
Free / May be used by soundcard
IRQ12
Free / Standard for MIDI 2
IRQ13
Numeric Coprocessor
IRQ14
Hard Disk
IRQ15
Used by secondary enhanced IDE interface
Always try to release the interrupts of the slots which are not used in BIOS. Please also read
the instructions in the manual of your motherboard.
I/O Address Conflict
It is probably extremely unlikely that there will be a conflict with the preset SB address 220H.
Again, all games and applications which use sound output under DOS are set to this address.
You can change the setting to 240H in the event of any conflict.
With the MPU-401 address 330H, there may occasionally be conflicts with common SCSI
controllers. If you therefore do not have any Wavetable output (general MIDI), you might be
able to obtain help by changing this address. Please also note that the address 170H is also
used when an ATAPI-IDE CD-ROM drive is connected.
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