2 north bridge configuration, North bridge configuration -19, Chapter 3 – Asus SABERTOOTH 990FX/GEN3 R2.0 User Manual
Page 89: Iommu [disabled

ASUS SABERTOOTH 990FX/GEN3 R2.0
3-19
Chapter 3
3.5.2
North Bridge Configuration
IOMMU [Disabled]
Allows you to enable or disable the input/output memory management unit (IOMMU)
Configuration options: [Enabled] [Disabled]
When the IOMMU is set to [Enabled], the following item appears:
IOMMU Mode [Disabled]
Allows you to set the IOMMU Mode that supports LINUX-based systems to convert
32bit I/O to 64-bit memory-mapped I/O.
Configuration options: [Disabled] [64MB]
Memory Configuration
Bank Interleaving [Auto]
Allows you to enable Memory Bank Interleaving function.
Configuration options: [Auto] [Disabled]
Channel Interleaving [Auto]
Allows you to enable Memory Channel Interleaving function.
Configuration options: [Auto] [Disabled]
Warm Boot RAM [Enabled]
Allows you to enable or disable the re-use of data in the RAM after a warm boot to
speed-up the boot process. Configuration options: [Enabled] [Disabled]
Memory Clear [Disabled]
Allows you to enable or disable the Memory Clear funtion.
Configuration options: [Enabled] [Disabled]
Main
Ai Tweaker
Advanced
Monitor
Boot
Tool
Exit
Enabled/Disabled IOMMU
Back
Advanced\
North Bridge >
UEFI BIOS Utility - Advanced Mode
North Bridge Configuration
IOMMU
Disabled
> Memory Configuration
Initiate Graphic Adapter
PEG/PCI
ASUS Graphic Card Optimization
Auto
DIMM0: Not Present
DIMM1: size=2048 MB, speed=1066 MHz
DIMM2: Not Present
DIMM3: Not Present