Pci (peripheral component interconnect) slot, Important, Pci interrupt request routing – MSI 880G-E45 User Manual
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Hardware Setup
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
Important
When adding or removing expansion cards, make sure that you unplug the power sup-
ply 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.
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:
Order1 Order2 Order3 Order4
PCI Slot1
INT E# INT F# INT G# INT H#
PCI Slot2
INT F# INT G# INT H# INT E#