Making The Most Of Your System's Ide Channels - HP Vectra XW Optimization Manual

Your System's IDE
Channels
PIO and DMA Modes
IDE hard
disk drive
DMA transfer modes

Making the Most of Your System's IDE Channels

Your Personal Workstation integrates an advanced IDE controller for
connecting internal mass storage devices. This controller can manage
the operation of up to four IDE devices and supports both hard disk
and CD-ROM drives.
The integrated PCI IDE controller provides two Fast IDE channels for
connecting IDE mass storage devices. Each channel can be used for
connecting up to two IDE devices. Both IDE channels support the
highest data transfer rates currently available and offer optimized
performance with any combination of IDE devices.
The PCI IDE controller uses two different techniques to transfer data
with IDE devices: Programmed Input/Output (PIO) modes and Direct
Memory Access (DMA) modes. When transferring data to or from an
IDE device, the IDE controller will automatically select the technique
that is most suited to the transfer.
1 Your Personal Workstation's Performance Features
Making the Most of Your System's IDE Channels
PIO transfer modes
IDE controller
PCI bus
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