Pci Slot Configuration - Acer 9000V User Manual

1.8

PCI Slot Configuration

1.8.1 PCI-to-PCI Bridge Feature
The system board carries a PCI-to-PCI bridge controller chipset that
expands the capability of the PCI system by allowing all the five PCI
slots in the system to be bus masters. The bridge has two interfaces.
The primary interface connects directly to the PCI bus close to the
host CPU. The secondary interface creates a new PCI bus that can
operate independently from the primary PCI bus.
1.8.2 Installing PCI Devices
The devices you install in PCI slots 1 and 2 operate on the primary
PCI bus while those in PCI slots 3, 4, and 5 operate on the secondary
PCI bus.
Since the primary PCI bus operates faster than the secondary PCI
bus, install PCI add-on boards in PCI slots 1 and 2 first then on PCI
slots 3, 4, and 5 to achieve better system performance. See Figure
1-1 for the locations of the PCI slots.
System Board 1-13