Fujitsu D2151 - PCI bus interrupts - Selecting correct PCI slot

Brief description of the mainboard
PCI bus interrupts - Selecting correct PCI slot
Extensive informa tion on this section is contained in the "Basic information on mainboa rd" manual.
To achieve optimum stability, p erformance and compatibility, avoid the multiple use
of ISA IRQs or PCI IRQ lines (IRQ sharing). Should I RQ sharing be unavoidable,
then all devices u sed and their drivers must support IRQ sha ring.
Which ISA IRQs are assigned to the PC I IRQ Lines is normally automatically specified
by the BIOS (see BIOS Setup description"
BIOS update", Pa ge 5).
Monofu nction al expansions cards
PCI/PCI Express expansion cards require a maximum of one interrupt, which is called the PCI
interrupt INT A. Expansion cards that do not require an interrupt can be installed in any desired slot.
Multifunctio nal expansion cards or expansion cards with integrated PCI-PCI bridge
These expansion cards require up to four PCI interrupts: INT A, INT B, INT C, INT D. H ow many
and which of the se interrupts are used is specified in the documentation provided with the card.
The assignment of the PCI interrupts to the IRQ Lines is show n in the following tab le:
On board con troller
PCI INT LINE 1 (A) 2 (B) 3 (C) 4 (D) 5 (E) 6 (F) 7 (G) 8 (H)
USB 1.1
1
st
-------
x
2
nd
------
x
-
3
rd
-----
x
--
4
th
----
x
---
USB 2.0
-------
x
SMBus
---
x
----
HD Audio
--
x
-----
LAN
-
x
------
Mechanical Slot
PCIINTLINE 1(A) 2(B) 3(C) 4(D) 5(E) 6(F) 7(G) 8(H)
PCIe x16
AB
------
PCIe x1 C
DAB
----
PCI 1
--
DC
-
BA
-
PCI 2
--
C
D
-
AB
-
PCI 3
--------
PCI 4
--------
First use PCI/PCI Express
slots that have a single PCI IRQ Line (no IRQ sharing). If you
must use another PCI/PC
I Express slot with IRQ sharing, check whe ther the expansion card
properly supports IRQ s
haring with the other devices on this PCI IRQ Line. The drivers of all
cards and components on
this PCI IRQ Line must also support IRQ sharing.
A26361-D2151-Z212 -1-8 N19, edition 1 English - 5