MSI 870-G45 - Manual (Page 34)

Hardware Setup MS-7599
Chapter 2
2-19
Hardware Setup MS-7599
Chapter 2
Slots
PCIE (Perpheral Component Interconnect Express) Slot
The PCI Express slot supports the PCI Express nterface expanson card.
PCI Express x16 Slot
PCI Express x1 Slot
PCI (Perpheral Component Interconnect) Slot
The PCI slot supports LAN card, SCSI card, USB card, and other add-on cards that
comply wth PCI specficatons.
32-bt PCI Slot
Important
When addng or removng expanson cards, make sure that you unplug the power sup-
ply first. Meanwhle, read the documentaton for the expanson card to configure any
necessary hardware or software settngs for the expanson card, such as jumpers,
swtches or BIOS configuraton.
PCI Interrupt Request Routng
The IRQ, acronym of nterrupt request lne and pronounced I-R-Q, are hardware lnes
over whch devces can send nterrupt sgnals to the mcroprocessor. The PCI IRQ pns
are typcally connected to the PCI bus pns as follows:
Order1 Order2 Order3 Order4
PCI Slot1 INT E# INT F# INT G# INT H#
PCI Slot2 INT F# INT G# INT H# INT E#
PCI Slot3 INT G# INT H# INT E# INT F#