IBM Aptiva M41
(250-0442) System Resources Faxback Doc. # 17846
The following is a list of the various system resources used by the IBM
Aptiva M41 as it is delivered from the factory.
Interrupt Assignments
Device/Circuit Interrupt Status
Power Management SMI Reserved
Parity error or I/O channel check NMI Reserved
Timer Click IRQ0 Reserved
PS/2 Keyboard IRQ1 Reserved
Secondary Interrupt Controller Cascade IRQ2 Reserved
Serial Port B IRQ3 Reserved
Serial Port A IRQ4 Reserved
User Available IRQ5 Available
Floppy Drive Interface IRQ6 Reserved
Parallel Port IRQ7 Reserved
Real-time Clock IRQ8 Reserved
Redirected IRQ2 IRQ9 Available
Alternate serial port (COM4) IRQ10 Available
Alternate serial port (COM3) IRQ11 Available
PS/2 Mouse Interface IRQ12 Reserved
Coproccessor IRQ13 Reserved
Primary IDE Hard Drive Interface IRQ14 Reserved
Secondary IDE Hard Drive Interface IRQ15 Reserved
DMA Channel Assignments
Device/Circuit DMA Channel
Open DMA 0
Open DMA 1
Floppy Drive Interface/ISA bus DMA 2
ECP Parallel Port (default) DMA 3
Secondary DMA controller cascade DMA 4
Open DMA 5
Open DMA 6
Open DMA 7
(CSC/all-09/14/95)
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