MSI 870-G45 series User Manual

Hardware Setup
MS-7599
Chapter 2
2-19
Hardware Setup
MS-7599
Chapter 2
Slots
PCIE (Perpheral Component Interconnect Express) Slot
The PCI Express slot supports the PCI Express nterface expanson card.
PCI Express x16 Slot
PCI Express x1 Slot
PCI (Perpheral Component Interconnect) Slot
The PCI slot supports LAN card, SCSI card, USB card, and other add-on cards that
comply wth PCI spec󰘰catons.
32-bt PCI Slot
Important
When addng or removng expanson cards, make sure that you unplug the power sup-
ply 󰘰rst. Meanwhle, read the documentaton for the expanson card to con󰘰gure any
necessary hardware or software settngs for the expanson card, such as jumpers,
swtches or BIOS con󰘰guraton.
PCI Interrupt Request Routng
The IRQ, acronym of nterrupt request lne and pronounced I-R-Q, are hardware lnes
over whch devces can send nterrupt sgnals to the mcroprocessor. The PCI IRQ pns
are typcally connected to the PCI bus pns 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#

MSI 870-G45 series Specifications

General

Brand	MSI
Model	870-G45 series
Category	Motherboard
Language	English