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2.4 Expansion Slots (PCI and PCI Express Slots)
There are 2 PCI slots and 3 PCI Express slots on this motherboard.
PCI Slots: PCI slots are used to install expansion cards that have the 32-bit PCI
interface.
PCIE Slots:
PCIE1 (PCIE x1 slot) is used for PCI Express cards with x1 lane width
cards, such as Gigabit LAN card and SATA2 card.
PCIE2 (PCIE x16 slot) is used for PCI Express x16 lane width graphics
cards, or used to install PCI Express graphics cards to support
CrossFireX
PCIE3 (PCIE x16 slot) is used for PCI Express x4 lane width cards,
or used to install PCI Express graphics cards to support CrossFireX
function.
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2.
3.
Installing an expansion card
Step 1.
Before installing the expansion card, please make sure that the power
supply is switched off or the power cord is unplugged. Please read the
documentation of the expansion card and make necessary hardware
settings for the card before you start the installation.
Step 2.
Remove the system unit cover (if your motherboard is already installed
in a chassis).
Step 3.
Remove the bracket facing the slot that you intend to use. Keep the
screws for later use.
Step 4.
Align the card connector with the slot and press firmly until the card is
completely seated on the slot.
Step 5.
Fasten the card to the chassis with screws.
Step 6.
Replace the system cover.
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function.
In single VGA card mode, it is recommended to install a PCI Ex-
press x16 graphics card on PCIE2 slot.
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In CrossFireX
mode, please install PCI Express x16 graphics
cards on PCIE2 and PCIE3 slots. Therefore, PCIE2 slot will work at
x16 bandwidth while PCIE3 slot will work at x4 bandwidth.
Please connect a chassis fan to motherboard chassis fan connector
(CHA_FAN1 or CHA_FAN2) when using multiple graphics cards for
better thermal environment.
ASRock 970 Pro3 R2.0 Motherboard
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