ASROCK Z87Pro4 Manual Del Usuario página 23

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2.4 Expansion Slots (PCI and PCI Express Slots)
There are 2 PCI slots and 4 PCI Express slots on the motherboard.
Before installing an 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.
PCI slot:
The PCI1 and PCI2 slots are used to install expansion cards that have 32-bit PCI
interface.
PCIe slots:
PCIE1 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
PCIE2 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards.
PCIE3 (PCIe 2.0 x16 slot) is used for PCI Express x4 lane width graphics cards.
PCIE4 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards.
PCIe Slot Configurations
Single Graphics Card
Two Graphics Cards in
TM
CrossFireX
For a better thermal environment, please connect a chassis fan to the motherboard's
chassis fan connector (CHA_FAN1 or CHA_FAN2) when using multiple graphics
cards.
PCIE1
x16
x16
Mode
Z87 Pro4
PCIE3
N/A
x4
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