MSI G41M-P33 Combo Mode D'emploi page 21

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PCie Slot
the PCie slot supports the PCie interface expansion card.
PCi Slot
the PCi slot supports Lan card, SCSi card, uSB card, and other add-on cards
that comply with PCi specifications.
imPoRtant
When adding or removing expansion cards, make sure that you unplug the power
supply first. meanwhile, read the documentation for the expansion card to config-
ure any necessary hardware or software settings for the expansion card, such as
jumpers, switches or BioS configuration.
PCi interrupt Request Routing
the iRq, acronym of interrupt request line and pronounced i-R-q, are hardware
lines over which devices can send interrupt signals to the microprocessor. the PCi
iRq pins are typically connected to the PCi bus pins as follows:
order
Slot
PCi  int a#
PCie x6 slot.
PCie x slot.
 2
int B#
 4
int C# int d#
MS-7592
2