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Chapter 2: Hardware information
2.5.4 PCI Express x16 slots (x8 link)
The onboard PCI Express x16 slots provide one x8 link that supports VGA cards and various
server class high performance add-on cards.
2.5.5 PCI Express x8 slots (x4 link)
The onboard PCI-E slot 5 provide one x4 Gen3 link to CPU1. This slot supports various
server class high performance add-on cards.
2.5.6 PCI Express x1 slots (x1 link)
The onboard PCI Express x1 slots provide one x1 link.
2.5.7 PCI slots
The PCI slot supports cards such as a LAN card, USB card, and other cards that comply with
PCI 2.3 specications.
* These IRQs are usually available for ISA or PCI devices.
IRQ Priority Standard function
0 1 System Timer
1 2 Keyboard Controller
2 - Programmable Interrupt
3* 11 Communications Port (COM2)
4* 12 Communications Port (COM1)
5* 13 --
6 14 Floppy Disk Controller
7* 15 --
8 3 System CMOS/Real Time Clock
9* 4 ACPI Mode when used
10* 5 IRQ Holder for PCI Steering
11* 6 IRQ Holder for PCI Steering
12* 7 PS/2 Compatible Mouse Port
13 8 Numeric Data Processor
14* 9 Primary IDE Channel
15* 10 Secondary IDE Channel
2.5.3 Interrupt assignments
Standard Interrupt assignments