Msi ZH77A-G43 User Manual download pdf (Page 29)

1-19

MS-7758

Chapter 1

PCI Interrupt Request Routng

IRQ, or nterrupt request lnes, are hardware lnes over whch devces can send nterrupt

requests to the processor. The PCI IRQ pns are typcally connected to the PCI bus pns

as followed:

Order1 Order2 Order3 Order4

PCI Slot1 INT A# INT B# INT C# INT D#

PCI Slot2 INT B# INT C# INT D# INT A#

PCI Slot3 INT C# INT D# INT A# INT B#

Vdeo/ Graphcs Cards

If avalable, ths manboard takes advantage of the CPU’s ntegrate graphcs processor,

but dscrete vdeo cards can be nstalled by way of the manboard’s expanson slots.

Addng on one or more dscrete vdeo cards wll sgncantly boost the system’s graph-

cs performance. For best compatblty, MSI graphcs cards are recommended.

Sngle Vdeo Card Installaton

Determne what type of expanson slot(s) the vdeo card wll use. Locate the expan-

son slot(s) on the manboard. Remove any protectve expanson slot covers from

the computer case.

Lne up the vdeo card on top of the expanson slot(s) wth the dsplay ports facng

out of the computer case. For a sngle vdeo card nstallaton, usng the PCI_E2 slot

s recommended.

Push the vdeo card nto ts expanson slot(s). Dependng on the expanson slot(s)

used, there should be clp(s) on the expanson slot(s) that wll lock n place.

If needed, screw the edge of the graphcs card to the computer case. Some vdeo

cards mght requre a power cable drectly from the power supply.

Please consult your vdeo card’s manual for further nstructons regardng drver

nstallaton or other specal settngs.

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Msi ZH77A-G43 User Manual Page 29