D-12 SPARCengine Ultra AX
i
OEM Technical Manual • May 1999
D.10 PCI Probe Lists
The NVRAM variable maintains the current PCI Probe list. The list can be modified
by the user, however, Bus B will always be probed before Bus A.
The default PCI Probe list order is:
1. PCI-BPCIO, onboard
2. PCI-BJ2001 PCI Slot
3. PCI-BJ2002 PCI Slot
4. PCI-BJ2003 PCI Slot
5. PCI-ADual SCSI, onboard
6. PCI-AJ2101 PCI Slot
7. PCI-AJ2102 PCI Slot
8. PCI-AJ2103 PCI Slot
PCI cards added to the system must comply with the PCI 2.1 specification. During
the OBP probe process, a node ID is created and added to the device tree.