IBM 4500R Hardware Maintenance Manual - Page 57
Adapter installation instructions, Start Options
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• 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 1 Adapter 2 Expansion-slot cover The following illustration shows the rerouting of the SCSI cable if you install a ServerRAID adapter. Installing options 49