Deo/ GraphCs Cards - MSI Z77A-G43 GAMING User Manual

PCI Interrupt Request Routng
IRQ, or nterrupt request lnes, are hardware lnes over whch devces can send nterrupt
requests to the processor. The PCI IRQ pns are typcally connected to the PCI bus pns
as followed:
PCI Slot1
PCI Slot2
PCI Slot3
Vdeo/ Graphcs Cards
If avalable, ths manboard takes advantage of the CPU's ntegrate graphcs processor,
but dscrete vdeo cards can be nstalled by way of the manboard's expanson slots.
Addng on one or more dscrete vdeo cards wll sgnficantly boost the system's graphcs
performance. For best compatblty, MSI graphcs cards are recommended.
Sngle Vdeo Card Installaton
1. Determne what type of expanson slot(s) the vdeo card wll use. Locate the expan-
son slot(s) on the manboard. Remove any protectve expanson slot covers from
the computer case.
2. Lne up the vdeo card on top of the expanson slot(s) wth the dsplay ports facng
out of the computer case. For a sngle vdeo card nstallaton, usng the PCI_E2 slot
s recommended.
3. Push the vdeo card nto ts expanson slot(s). Dependng on the expanson slot(s)
used, there should be clp(s) on the expanson slot(s) that wll lock n place.
4. If needed, screw the edge of the graphcs card to the computer case. Some vdeo
cards mght requre a power cable drectly from the power supply.
5. Please consult your vdeo card's manual for further nstructons regardng drver
nstallaton or other specal settngs.
Order1 Order2 Order3
INT A# INT B# INT C#
INT B# INT C# INT D#
INT C# INT D# INT A#
Order4
INT D#
INT A#
INT B#
MS-7758
1-19