IBM 86884RX Maintenance Manual - Page 103

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v You can install both PCI and PCI-X adapters on the same bus. However, if you install a PCI adapter and a PCI-X adapter on 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 on the same bus, the bus speed will match that of the slowest adapter. v If a single 133 MHz adapter is installed on PCI-X bus B (slots 3 and 4) and the other slot on PCI-X bus B is empty, the adapter will operate at 133 MHz. v The server scans PCI-X slots in the following order: the xSeries 450 integrated devices are scanned first; then, PCI-X slots 1, 2, 6, 5, 3, and 4. If an RXE-100 enclosure is attached to an xSeries 450 server, the scan order is as follows: the xSeries 450 integrated devices are scanned first; then, PCI-X slots 1, 2, 6, 5, 3, and 4; then, the RXE-100 PCI slots 11, 12, 9, 10, 7, 8, 17, 18, 15, 16, 13, and 14. v Your server supports 3.3 V and universal adapters; it does not support 5.0 V adapters. Complete the following steps to install an adapter: 1. Read the safety information beginning on page 197 and "Installation guidelines" on page 77. Attention: When you handle static-sensitive devices, take precautions to avoid damage from static electricity. For details about handling these devices, see "Handling static-sensitive devices" on page 78. 2. Disable the PCI-X slot through your operating system before you insert or remove a PCI or PCI-X adapter. Note: Some operating systems do not support the enabling and disabling of a PCI-X slot. If your operating system does not support this function, turn off the server and peripheral devices, and disconnect the power cords and all external devices from the back of the server before proceeding. 3. Open the top cover. 4. Follow the cabling instructions, if any, that come with the adapter. Route the adapter cables before you install the adapter. 5. Follow the instructions that come with the adapter to set jumpers or switches, if any. Chapter 4. Installing options 93

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v
You
can
install
both
PCI
and
PCI-X
adapters
on
the
same
bus.
However,
if
you
install
a
PCI
adapter
and
a
PCI-X
adapter
on
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
on
the
same
bus,
the
bus
speed
will
match
that
of
the
slowest
adapter.
v
If
a
single
133
MHz
adapter
is
installed
on
PCI-X
bus
B
(slots
3
and
4)
and
the
other
slot
on
PCI-X
bus
B
is
empty,
the
adapter
will
operate
at
133
MHz.
v
The
server
scans
PCI-X
slots
in
the
following
order:
the
xSeries
450
integrated
devices
are
scanned
first;
then,
PCI-X
slots
1,
2,
6,
5,
3,
and
4.
If
an
RXE-100
enclosure
is
attached
to
an
xSeries
450
server,
the
scan
order
is
as
follows:
the
xSeries
450
integrated
devices
are
scanned
first;
then,
PCI-X
slots
1,
2,
6,
5,
3,
and
4;
then,
the
RXE-100
PCI
slots
11,
12,
9,
10,
7,
8,
17,
18,
15,
16,
13,
and
14.
v
Your
server
supports
3.3
V
and
universal
adapters;
it
does
not
support
5.0
V
adapters.
Complete
the
following
steps
to
install
an
adapter:
1.
Read
the
safety
information
beginning
on
page
197
and
“Installation
guidelines”
on
page
77.
Attention:
When
you
handle
static-sensitive
devices,
take
precautions
to
avoid
damage
from
static
electricity.
For
details
about
handling
these
devices,
see
“Handling
static-sensitive
devices”
on
page
78.
2.
Disable
the
PCI-X
slot
through
your
operating
system
before
you
insert
or
remove
a
PCI
or
PCI-X
adapter.
Note:
Some
operating
systems
do
not
support
the
enabling
and
disabling
of
a
PCI-X
slot.
If
your
operating
system
does
not
support
this
function,
turn
off
the
server
and
peripheral
devices,
and
disconnect
the
power
cords
and
all
external
devices
from
the
back
of
the
server
before
proceeding.
3.
Open
the
top
cover.
4.
Follow
the
cabling
instructions,
if
any,
that
come
with
the
adapter.
Route
the
adapter
cables
before
you
install
the
adapter.
5.
Follow
the
instructions
that
come
with
the
adapter
to
set
jumpers
or
switches,
if
any.
Chapter
4.
Installing
options
93