Pci Express X1 Slot; Pci Express X16 Slots; Jumper Settings; Clear Cmos Jumper: Clr_Cmos - EVGA nForce 122-CK-NF68-XX User Manual

Evga mainboard user guide

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Installing and Configuring the EVGA nForce 680i SLI Motherboard

PCI Express x1 Slot

There is two PCI Express x1 slots that are designed to accommodate less

bandwidth-intensive cards, such as a modem or LAN card. The x1 slot provides

250 MB/sec bandwidth.

These two PCI Express x16 slots are reserved for graphics or video cards. The

bandwidth of the x16 slot is up to 4GB/sec (8GB/sec concurrent). The design

of this motherboard supports dual PCI-Express graphics cards using NVIDIA's

SLI technology with multiple displays.

When installing a PCI Express x16 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.

The motherboard contains a 3-pin BIOS configuration jumper that enables all

board configurations to be done in the BIOS Setup program.

The silk screen on the motherboard shows a ∆ next to pin 1.

The motherboard uses the CMOS RAM to store all the set parameters. The

CMOS can be cleared by removing the CMOS jumper.

Use the following procedure to clear CMOS:

1. Turn off the AC power supply and connect pins 1 and 2 together using the

jumper cap.

2. Return the jumper setting to normal (pins 2 and 1

together with the jumper cap).

4. Turn the AC power supply back on.

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