Pci Interrupt Request Routing - MSI MS-7250 K9N Platinum Series User Manual

M S-7250 M ainboard
PCI (Peripheral Component Interconnect) Slots
The PCI slots support LAN cards, SCSI cards, USB cards, and other add-on cards
that comply with PCI specifications. At 32 bits and 33 MHz, it yields a throughput rate
of 133 MBps.

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 Slot 1
PCI Slot 2
PCI Slot 3
2-22
Order 1 Order 2
INT E# INT F#
INT F# INT G#
INT G# INT H#
32-bit PCI Slot
Order 3
INT G#
INT H#
INT E#
Order 4
INT H#
INT E#
INT F#