HP Vectra VA 6/xxx HP Vectra VA 6/xxx and XA 6/xxx pc - technical reference ma - Page 28

Devices on the PCI Bus

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2 System Board Devices on the PCI Bus Devices on the PCI Bus Video Controller The desktop HP Vectra VA 6/xxx PC has a Cirrus 5446 graphics chip connected on the PCI bus with a VESA feature connector integrated on the system board. The HP Vectra VA 6/xxx MT PC the HP Vectra XA 6/xxx PC have these spaces left vacant on the system board, and are supplied with a Matrox Millennium video controller on board in a PCI accessory slot. Both types of video system are described in more detail in the next chapter. Integrated Drive Electronics (IDE) The IDE controller is implemented as part of the PIIX3 chip (the PCI/ISA bridge). It supports Enhanced IDE (EIDE) and Standard IDE. To use the Enhanced IDE features, though, the drives must be compliant with Enhanced IDE. Up to four IDE devices are supported: two (one master and one slave) connected to the primary channel, and two (one master and one slave) to the secondary channel. If a single device (a hard disk drive or a CD-ROM drive) is attached to a channel, it should be in the master position (the connector that is closest to the system board). It is possible to have a fast device, such as a hard disk drive, and a slow device, such as a CD-ROM, on the same channel without affecting the performance of the fast device. The BIOS sends a command to each drive, and determines, automatically, the fastest configuration that it supports. However, in general, the primary channel cable (the one with the grey connectors) is recommended for hard disk drives, and the secondary channel cable (the one with the red connectors) for CD-ROM drives. On the HP Vectra VA 6/xxx MT PC, when the CD-ROM drive is installed in the Master position of the IDE secondary channel, the hard disk drives (1.2 GB or 2.5 GB) cannot be installed in the slave position of this channel (problems could be experienced activating the 32-bit access drivers). The hard disk drive should be installed in the master position of the secondary channel with the CD-ROM drive in the slave position. 20

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20
2
System Board
Devices on the PCI Bus
Devices on the PCI Bus
Video Controller
The desktop
HP Vectra VA 6/xxx PC
has a Cirrus 5446 graphics chip
connected on the PCI bus with a VESA feature connector integrated on the
system board.
The
HP Vectra VA 6/xxx MT PC
the
HP Vectra XA 6/xxx PC
have these
spaces left vacant on the system board, and are supplied with a Matrox
Millennium video controller on board in a PCI accessory slot.
Both types of video system are described in more detail in the next chapter.
Integrated Drive Electronics (IDE)
The IDE controller is implemented as part of the PIIX3 chip (the PCI/ISA
bridge). It supports Enhanced IDE (EIDE) and Standard IDE. To use the
Enhanced IDE features, though, the drives must be compliant with
Enhanced IDE.
Up to four IDE devices are supported: two (one master and one slave)
connected to the primary channel, and two (one master and one slave) to
the secondary channel. If a single device (a hard disk drive or a CD-ROM
drive) is attached to a channel, it should be in the master position (the
connector that is closest to the system board).
It is possible to have a fast device, such as a hard disk drive, and a slow
device, such as a CD-ROM, on the same channel without affecting the
performance of the fast device. The BIOS sends a command to each drive,
and determines, automatically, the fastest configuration that it supports.
However, in general, the primary channel cable (the one with the grey
connectors) is recommended for hard disk drives, and the secondary
channel cable (the one with the red connectors) for CD-ROM drives.
On the
HP Vectra VA 6/xxx MT PC
, when the CD-ROM drive is installed in
the Master position of the IDE secondary channel, the hard disk drives
(1.2 GB or 2.5 GB) cannot be installed in the slave position of this channel
(problems could be experienced activating the 32-bit access drivers). The
hard disk drive should be installed in the master position of the secondary
channel with the CD-ROM drive in the slave position.