9. PCI 2.1 Configuration Space for Plug and Play device identifier
| Required |
10. PCI Specification 2.1 Subsystem IDs
| Required |
11. Configuration space populated correctly
| Required |
12. BIOS support for IRQ routing, for x86-based systems
| Required |
13. BIOS does not configure I/O systems to share PCI interrupts
| Recommended |
14. BIOS configures device IRQ and writes to the Interrupt Line Register
| Required |