MSI H55M User Guide - Page 36

PCI Express x16 Slot

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▍ Hardware Setup Slots PCIE (Peripheral Component Interconnect Express) Slot The PCI Express slot supports the PCI Express interface expansion card. PCI Express x16 Slot PCI Express x1 Slot PCI (Peripheral Component Interconnect) Slot The PCI slot supports LAN card, SCSI card, USB card, and other add-on cards that comply with PCI specifications. 32-bit PCI Slot 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: PCI Slot1 Order1 Order2 Order3 Order4 INT E# INT F# INT G# INT H# 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 configure any necessary hardware or software settings for the expansion card, such as jumpers, switches or BIOS configuration. 2-20

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2-20
Hardware Setup
▍
S
LotS
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±ficat±ons.
32-b±t PCI Slot
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#
Important
When add±ng or remov±ng expans±on cards, make sure that you unplug the power sup-
ply first. Meanwh±le, read the documentat±on for the expans±on card to configure any
necessary hardware or software sett±ngs for the expans±on card, such as jumpers,
sw±tches or BIOS configurat±on.