IBM 8658 User Guide - Page 62

Adapter, considerations

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1 PCI slot 5 64-bit (J44) 2 PCI slot 4 64-bit (J39) 3 PCI slot 3 64-bit (J34) 4 PCI slot 2 32-bit (J32) 5 PCI slot 1 32-bit (J27) Adapter considerations Before you install adapters, review the following: v Locate the documentation that comes with the adapter and follow those instructions in addition to the instructions given in this chapter. If you need to change the switch or jumper settings on your adapter, follow the instructions that come with the adapter. v You can install full-length adapters in all expansion slots. v You can install a 32-bit adapter in any of the PCI slots, but you might want to install it in a 32-bit slot and use the 64-bit slots for 64-bit adapters. v Your server supports 5.0 V and universal PCI adapters; it does not support 3.3 V adapters. Note: Universal PCI adapters support both 3.3 V and 5.0 V operation. v Your server uses a rotational interrupt technique to configure PCI adapters. Because of this technique, you can install a variety of PCI adapters that currently do not support sharing of PCI interrupts. v PCI slots 1 and 2 are on PCI bus A and PCI slots 3, 4, and 5 are on PCI bus B. Both PCI buses are primary buses. The system scans PCI slots 1 through 5 to assign system resources; then the system starts (boots) the PCI devices in the following order, if you have not changed the default boot precedence: PCI slots 1 and 2, system board SCSI devices, and then PCI slots 3 through 5. Note: To change the boot precedence for PCI devices, start the Configuration/Setup Utility program, select Start Options from the main menu, then select the PCI SCSI adapter boot option. See "Configuring the server" on page 31 for details on using the Configuration/Setup Utility program. 52 : Netfinity 5100 Type 8658 Models 11Y, 21Y, 31Y, 41Y, 51Y, 1RY, 2RY, 3RY, 4RY, 5RY

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±1²
PCI
slot
5
64-bit
(J44)
±2²
PCI
slot
4
64-bit
(J39)
±3²
PCI
slot
3
64-bit
(J34)
±4²
PCI
slot
2
32-bit
(J32)
±5²
PCI
slot
1
32-bit
(J27)
Adapter
considerations
Before
you
install
adapters,
review
the
following:
v
Locate
the
documentation
that
comes
with
the
adapter
and
follow
those
instructions
in
addition
to
the
instructions
given
in
this
chapter.
If
you
need
to
change
the
switch
or
jumper
settings
on
your
adapter,
follow
the
instructions
that
come
with
the
adapter.
v
You
can
install
full-length
adapters
in
all
expansion
slots.
v
You
can
install
a
32-bit
adapter
in
any
of
the
PCI
slots,
but
you
might
want
to
install
it
in
a
32-bit
slot
and
use
the
64-bit
slots
for
64-bit
adapters.
v
Your
server
supports
5.0
V
and
universal
PCI
adapters;
it
does
not
support
3.3
V
adapters.
Note:
Universal
PCI
adapters
support
both
3.3
V
and
5.0
V
operation.
v
Your
server
uses
a
rotational
interrupt
technique
to
configure
PCI
adapters.
Because
of
this
technique,
you
can
install
a
variety
of
PCI
adapters
that
currently
do
not
support
sharing
of
PCI
interrupts.
v
PCI
slots
1
and
2
are
on
PCI
bus
A
and
PCI
slots
3,
4,
and
5
are
on
PCI
bus
B.
Both
PCI
buses
are
primary
buses.
The
system
scans
PCI
slots
1
through
5
to
assign
system
resources;
then
the
system
starts
(boots)
the
PCI
devices
in
the
following
order,
if
you
have
not
changed
the
default
boot
precedence:
PCI
slots
1
and
2,
system
board
SCSI
devices,
and
then
PCI
slots
3
through
5.
Note:
To
change
the
boot
precedence
for
PCI
devices,
start
the
Configuration/Setup
Utility
program,
select
Start
Options
from
the
main
menu,
then
select
the
PCI
SCSI
adapter
boot
option.
See
“Configuring
the
server”
on
page
31
for
details
on
using
the
Configuration/Setup
Utility
program.
52
:
Netfinity
5100
Type
8658
Models
11Y,
21Y,
31Y,
41Y,
51Y,
1RY,
2RY,
3RY,
4RY,
5RY