Pci Slots; Pci Express X1 Slots; Pci Express X16/X8 Slots - EVGA X58 SLI3 User Manual

PCI Slots

The PCI slot supports many expansion cards such as a LAN card, USB card,
SCSI card and other cards that comply with PCI specifications. When installing
a card into the PCI slot, be sure that it is fully seated. Secure the card's metal
bracket to the chassis back panel with the screw used to hold the blank cover.

PCI Express x1 Slots

There is one PCI Express x1 slot that is designed to accommodate PCIe 1x
cards, such as a Killer Xeno Network Card or Sound Card. The x1 slot provides
250 MB/sec bandwidth.

PCI Express x16/x8 Slots

These PCI Express slots are reserved for Graphic Cards and PCI Express x1
and x4 devices. The design of this motherboard supports multiple Graphic Card
technology.
When installing a PCI Express Graphic Card, be sure the retention clip snaps
and locks the card into place. If the card is not seated properly, it could cause a
short across the pins. Secure the card's metal bracket to the chassis back panel
with the screw used to hold the blank cover.