Asus X99-S - Page 35

ASUS X99-S
1-19
Chapter 1
6. Clear CMOS button (CLR_CMOS)
Press this button to clear the BIOS setup information only when the systems hangs
due to overclocking.
7. SLI/CFX switch
This switch allows you to determine the slots for 2-WAY or 3-WAY graphics card
installation. When enabled, the LEDs near the slots light up, telling you to install the
graphics cards to the specic slots.
• The LEDs below the SLI/CFX switch light up when you set the SLI/CFX switch to
3-WAY mode or 4-WAY mode. Refer to section 1.2.8 Onboard LEDs for the exact
location of the SLI/CFX LEDs.
• When using a 40-LANE CPU, the lighted LED for 3-WAY changes after adjusting the
bandwidth of the PCIe x16_5 slot in BIOS.