Operating instructions

4.7.1 PCI Configuration
PCI modules are either designed for 5.0 volts or 3.3 volts, or are univer-
sal in design and can plug into either 3.3 or 5.0 volt slots.
PCI slots are split across three independent 64-bit PCI buses, two buses at 66
MHz and one bus at 33 MHz. These buses correspond to Hose 0, 1, and 3 in the
system logical configuration. The slots on each bus are listed below.
Some PCI options require drivers to be installed and configured. These options
come with a CD-ROM. Refer to the installation document that came with the
option and follow the manufacturer’s instructions.
There is no direct correspondence between the physical numbers of the slots on
the backplane and the logical slot identification reported with the SRM console
show config command (described in Chapter 2). The table in Figure 4–16
maps the physical slot numbers to the SRM logical ID numbers for the I/O con-
nectors.
CAUTION: Check the keying before you install the PCI module and do not force
it in. Plugging a module into a wrong slot can damage it.
4-22 DS25 Owner’s Guide