IBM Netfinity 4500R, Hardware Maintenance Manual

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Installing options
49
• Your server supports 5.0V and universal PCI adapters; it does not support 3.3V
adapters.
Note:
Universal PCI adapters support both 3.3V and 5.0V operation.
• 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.
• PCI slots 1 and 2 are on primary PCI bus A and PCI slots 3, 4, and 5 are on
secondary PCI bus B. 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 boot precedence from the default: PCI slots 1 and 2,
system board SCSI devices, and then PCI slots 3 through 5.
You can use the Configuration/Setup Utility program to change the boot
precedence for your server. Select
Start Options from the Configuration/Setup
Utility program.
Adapter installation instructions
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Expansion-slot cover
The following illustration shows the rerouting of the SCSI cable if you install a
ServerRAID adapter.