ASROCK FM2A78M Pro3+ Bedienungsanleitung Seite 14

2.4 Expansion Slots (PCI Express Slots)
There are 3 PCI Express slots on this 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 documenta-
tion of the expansion card and make necessary hardware settings for the
card before you start the installation.
PCIE Slots:
PCIE1 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graph-
ics cards.
PCIE2 / PCIE3 (PCIe 2.0 x1 slot) is used for PCI Express cards with x1
lane width cards.
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