User's Manual

ASUS PRIME B250-PLUS
1-5
• InsingleVGAcardmode,usethePCIe3.0x16_1slot(gray)foraPCIExpressx16
graphicscardtogetbetterperformance.
• WerecommendthatyouprovidesufcientpowerwhenrunningCrossFireX™mode.
• ConnectachassisfantothemotherboardconnectorlabeledCHA_FAN1/2when
usingmultiplegraphicscardsforbetterthermalenvironment.
• WhenanM.2deviceinPCIemodeisinstalledontotheM.2_1socket,PCIex16_2slot
onlyrunsatx1mode.
PCI Express 3.0 x1 slots
ThismotherboardhastwoPCIExpress3.0x1slotsthatsupportPCIExpressx1
networkcards,SCSIcards,andothercardsthatcomplywiththePCIExpress
specications.
IRQ assignments for this motherboard
WhenusingPCIcardsonsharedslots,ensurethatthedriverssupport“ShareIRQ”orthat
thecardsdonotneedIRQassignments.Otherwise,conictswillarisebetweenthetwoPCI
groups,makingthesystemunstableandthecardinoperable.
A B C D E F G H
HDAudioController shared – – – – – – –
XHCIController shared – – – – – – –
SATAController shared – – – – – – –
LANController – shared – – – – – –
PCIex16_1 shared – – – – – – –
PCIex16_2 shared – – – – – – –
PCIex1_1 shared – – – – – – –
PCIex1_2 – – shared – – – – –
M.2_1 shared – – – – – – –
M.2_2 shared – – – – – – –
ASM1083 – – – shared – – – –