MSI P6N SLI PLATINUM User Guide - Page 41

PCI Peripheral Component Interconnect Slots, PCI Interrupt Request Routing

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Hardware Setup 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. 32-bit PCI Slot Important The indicator LED between the two PCI slots (PCI2 & PCI3) will shine green light when the system is turned on. Indicator LED 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 Order 1 INT Y# INT Z# INT W# Order 2 INT Z# INT W# INT X# Order 3 INT W# INT X# INT Y# Order 4 INT X# INT Y# INT Z# 2-27

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Hardware Setup
32-bit PCI Slot
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:
Order 1
Order 2
Order 3
Order 4
PCI Slot 1
INT Y#
INT Z#
INT W#
INT X#
PCI Slot 2
INT Z#
INT W#
INT X#
INT Y#
PCI Slot 3
INT W#
INT X#
INT Y#
INT Z#
Important
The indicator LED between the two PCI slots (PCI2 & PCI3) will shine green
light when the system is turned on.
Indicator LED