Adapter Considerations - IBM eServer xSeries 235 Type 8671 Option Installation Manual

Adapter considerations

Before you install an adapter, review the following information:
v Read the documentation that comes with your operating system.
v Locate the documentation that comes with the adapter and follow those
v You can install full-length adapters and non-hot-plug adapters in any expansion
v The 32-bit PCI slot supports 5.0 V signaling PCI adapters; it does not support 3.3
v The 64-bit PCI-X slots 2 through 6 support 3.3 V signaling PCI or PCI-X
v The PCI bus configuration is:
v The optional IBM Remote Supervisor Adapter must be installed in PCI slot 1 only.
v The system scans PCI and PCI-X slots 1 through 6 to assign system resources.
v The Active PCI-X slots contain:
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IBM xSeries 235 Type 8671: Option Installation Guide
instructions in addition to the instructions in this chapter. If you need to change
the switch or jumper settings on your adapter, follow the instructions that come
with the adapter.
slot.
V signaling adapters.
adapters; they do not support 5.0 V signaling adapters.
– Non-hot-plug, 32-bit PCI slot 1 is on PCI bus A, 33 MHz
– Non-hot-plug, 64-bit PCI-X slots 2 and 3, and the integrated Ethernet
controller, are on PCI bus B, 100 MHz (independent of slot 4)
– Non-hot-plug, 64-bit PCI-X slot 4 and the integrated SCSI controller with RAID
capabilities are on PCI bus B, 100 MHz (independent of slots 2 and 3)
– Hot-plug, 64-bit PCI-X slot 5 is on PCI bus C, 133 MHz (independent of slot
6)
– Hot-plug, 64-bit PCI-X slot 6 is on PCI bus C, 133 MHz (independent of slot
5)
Notes:
1. PCI bus A is often referred to as bus 0; PCI bus B is often referred to as bus
1 and bus 2; and PCI bus C is often referred to as bus 3 and bus 5.
However, the bus numbers vary according to the adapters that are installed.
2. If an optional ServeRAID-5i controller is installed, it overrides the standard
functionality of the integrated SCSI controller with RAID capabilities and
forces PCI-X slot 4 to 66 MHz. The ServeRAID-5i controller must be installed
in slot 4 using the 3-U bracket that comes with the controller.
3. The integrated SCSI controller with RAID capabilities is on PCI bus B.
Use the ribbon cable that comes with the adapter to connect the adapter to the
Remote Supervisor Adapter connector (J27) on the system board.
The system then starts (boots) the system devices in the following order, if you
have not changed the default boot precedence: integrated SCSI controller with
RAID capabilities (or optional ServeRAID-5i controller), integrated Ethernet
controller, and then PCI and PCI-X slots 1 through 6.
Note: To change the boot precedence for PCI and PCI-X devices, start the
Configuration/Setup Utility program and select Start Options from the
main menu. See the User's Guide on the IBM xSeries Documentation CD
for details about using the Configuration/Setup Utility program.
– Power-on LEDs
– Internal attention LEDs
– External attention LEDs