Expansion Slots; Pci_E1: Pcie Expansion Slot - MSI Z97I GAMING AC Manual

Expansion Slots

This motherboard contains numerous slots for expansion cards, such as discrete
graphics or audio cards.

PCI_E1: PCIe Expansion Slot

The PCIe slot supports the PCIe interface expansion card.
PCIe 3.0 x16 Slot
Important
When adding or removing expansion cards, always turn off the power supply and
unplug the power supply power cable from the power outlet. Read the expansion
card's documentation to check for any necessary additional hardware or software
changes.
Getting Started 1-18