Pci Interrupt Request Routing; Nv Sli (Scalable Link Interface) Slot: Pci_E4 - MSI K8N SLI-F User Manual

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

NV SLI (Scalable Link Interface) Slot: PCI_E4

NVIDIA SLI (Scalable Link Interface) technology allows two GPUs to run in tandem
within a system to achieve up to twice the performance of a single graphics card. To
utilize this technology, the two GPU cards must be
connected by an SLI bridge card.
You can find an SLI switch card on the mainboard
configured to non-SLI mode by default.
SLI Switch Card
If you intend to use the SLI interface for better graphics performance, please refer to
the following instructions.
1. Push the retaining clips (on the sides of the SLI slot) outwards to release the
SLI switch card.
MSI Reminds You...
Make sure that you unplug the power supply before removing the SLI
switch card.
Order 1 Order 2
INT A# INT B#
INT B# INT C#
INT C# INT D#
Quick User's Guide
Order 3 Order 4
INT C# INT D#
INT D# INT A#
INT A# INT B#
SLI Bridge Card
non-SLI mode
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