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DELL 6350 Manuale Utente

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System Overview
1-23
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Table 1-9 lists the default DMA channel assignments.
IRQ12 
Used by the PS/2 mouse port unless mouse is disabled in 
System Setup program
IRQ13 
Used by the math coprocessor
IRQ14 Available
IRQ15
Used by embedded server-management functions
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DREQ0
Not required for PCI-only system
DREQ1
Not required for PCI-only system
DREQ2
Generated by super I/O controller to initiate DMA cycle for 
attached diskette drive
DREQ3
Not required for PCI-only system
DREQ4
Generated by bus controller chip to activate second DMA 
controller
DREQ5
Not required for PCI-only system
DREQ6
Not required for PCI-only system
DREQ7
Not required for PCI-only system
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