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Dell Dimension V xxx and V xxx c Systems Service Manual
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DREQ0
Default audio DMA channel assignment
DREQ1
Default audio DMA channel assignment
DREQ2
Generated by I/O controller to enable DMA cycle for attached
diskette drive
DREQ3
Generated by I/O controller to enable DMA cycle for the
parallel port when in EPP mode
DREQ4
Reserved — selects second DMA controller
DREQ5
Available for use by an expansion card
DREQ6
Available for use by an expansion card
DREQ7
Available for use by an expansion card
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