MSI G41M-P23 manual Pci Int A# Int B# Int C# Int D#

MS-7592

PCI Express Slot

The PCI Express slot supports the PCI Express interface expansion card.

PCI Express x16 slot.

PCI Express x1 slot.

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	1		2		3		4
Slot
PCI 1		INT A#		INT B#		INT C#		INT D#

21