User`s guide

Installing Expansion Boards

8-9

When the number of PCI devices exceeds 10, any additional devices will

appear as embedded devices, even if they require an IRQ assigned to

them. The embedded devices are listed in the order in which they were

detected. To associate embedded devices with particular PCI expansion

boards, you must know the number of devices (excluding PCI-to-PCI

bridges, which are not listed in the SCU) on each PCI expansion board. If

there are many embedded devices, start matching the PCI expansion

boards in the highest slot number with the embedded devices at the

bottom of the list (above the embedded VGA device). As an example,

assume that a server has two Adaptec 3985 SCSI controllers installed,

one in PCI Slot 1 and the other in PCI Slot 2. The SCU might show the

following:

• PCI 1 PCI SCSI Controller IRQ15

• PCI 1 PCI Memory Controller IRQ14

• PCI 2 PCI SCSI Controller IRQ10

• PCI 2 PCI Memory Controller IRQ2(9)

• Embedded PCI SCSI Controller

• Embedded VGA

In this case, the first two embedded references are devices on the

controller in PCI Slot 1, while the last two are associated with the

controller in PCI Slot 2.