MSI K9N2 SLI PLATINUM User Guide - Page 38
PCI Peripheral Component Interconnect Slots, PCI Interrupt Request Routing - 3 3 bios
UPC - 816909045307
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MS-7374 Mainboard 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 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 Order 1 INT W# INT X# Order 2 INT X# INT Y# Order 3 INT Y# INT Z# Order 4 INT Z# INT W# 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. 2-24