IBM eServer xSeries 445 Type 8870 Option Installation Manual page 35

Note: You can add up to 12 PCI-X slots to your server by connecting your
server to a remote I/O expansion enclosure. For more information, see the
expansion enclosure documentation.
v Locate the documentation that comes with the adapter and follow those
instructions in addition to the instructions in this chapter.
v If you need to change the switch settings or jumper settings on your adapter,
follow the instructions that come with the adapter.
v Video adapters are not supported.
v Some long adapters have extension handles or brackets installed. Before
installing the adapter, you must remove the extension handle or bracket.
v Your server uses a rotational interrupt technique to configure PCI-X adapters.
You can use this technique to install PCI-X adapters that currently do not support
sharing of PCI-X interrupts.
v Your server scans devices and PCI-X slots to assign system resources in the
following order: DVD-ROM drive; disk drives; integrated SCSI devices; PCI-X
slots 1, 2, 3, 4, 5, 6; and the integrated Ethernet controller. If an RXE-100
enclosure is attached to the server, the scan continues in sequence with PCI
slots 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, and 18.
v You can use the Configuration/Setup Utility program to change the scan
sequence and have the server scan one of the first six PCI slots before it scans
the integrated devices. You cannot change the scan sequence of the PCI slots in
an RXE-100 enclosure.
v You can install both PCI and PCI-X adapters in the same bus. However, if you
install a PCI adapter and a PCI-X adapter in the same bus, the PCI-X features of
the PCI-X adapter will be disabled, and the adapter will function as a PCI
adapter.
v You can install PCI or PCI-X adapters of speeds faster than what is labeled for a
particular PCI-X bus. For example, if you install two 133 MHz adapters into slots
that are labeled as 100 MHz slots, the adapters will operate at 100 MHz.
v If you install a 33 MHz and a 66 MHz adapter in the same bus, the bus speed
will match that of the slowest adapter.
v Your server supports 3.3 V adapters; it does not support 5.0 V adapters.
v Do not install a PCI-X adapter in PCI-X slot 1 if you are going to install the serial
port that comes with your server. See "Installing the serial port" on page 27 for
installation instruction
v If a single 133 MHz adapter is installed in PCI-X bus B (slot 3 or slot 4) and the
other slot in PCI-X bus B is empty, the adapter will operate at 133 MHz.
Complete the following steps to install an adapter:
1. Read the safety information beginning on page v and "Installation guidelines"
on page 11.
2. Use the operating system to disable the Active PCI-X slot; then, insert or
remove a hot-plug PCI or PCI-X adapter. Some operating systems do not
support the enabling and disabling of a PCI-X slot. If your operating system
does not support this function, you must turn off your server and disconnect all
power cords and external cables before proceeding.
3. Pull out on the quick release latches on each side of the server; then, pull the
server out of its rack enclosure until it stops.
4. Open the top cover.
Chapter 2. Installing options
23