Asus SABERTOOTH 990FX R2.0 - Manual (Page 90)

3-20 Chapter 3: BIOS setup
Chapter 3
DCT Unganged Mode [Enabled]
Allows you to select unganged DRAM mode (64-bit width).
[Enabled]: Ganged mode.
[Disabled]: Unganged mose.
Initiate Graphic Adapter [PEG/PCI]
Allows you to set which graphics controller to use as the primary boot device.
Configuration options: [PCI/PEG] [PEG/PCI]
3.5.3 South Bridge Configuration
Main Ai Tweaker Advanced Monitor Boot Tool
Exit
HPET TIMER
Back Advanced\ South Bridge >
UEFI BIOS Utility - Advanced Mode
HPET Enabled
HPET [Enabled]
Allows you to enable or disable the High Precision Event Timer (HPET).
Configuration options: [Enabled] [Disabled]