Chapter 3, 2 north bridge configuration, Iommu [disabled – Asus SABERTOOTH 990FX User Manual
Page 78: Initiate graphic adapter [peg/pci, Configuration options: [disabled] [64mb
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Chapter 3: BIOS setup
Chapter 3
3.5.2
North Bridge Configuration
Main
Ai Tweaker
Advanced
Monitor
Boot
Tool
Exit
IOMMU is support on Linux based
systems to convert 32bit I/O to 64bit
MMIO.
Back
Advanced\
North Bridge >
UEFI BIOS Utility - Advanced Mode
North Bridge Configuration
IOMMU Mode
Disabled
> Memory Configuration
Initate Graphic Adapter
PEG/PCI
IOMMU [Disabled]
Configuration options: [Disabled] [64MB]
Memory Configuration
Bank Interleaving [Auto]
Allows you to enable Memory Bank Interleaving fuction. Configuration options: [Auto]
[Disabled]
Channel Interleaving [Auto]
Allows you to enable Memory Channel Interleaving fuction. Configuration options:
[Auto] [Disabled]
ECC Mode [Enabled]
Allows you to enable or disable the ECC Mode.
Configuration options: [Enabled] [Disabled]
Power Down Enable [Disabled]
Allows you to enable or disable DDR power down mode.
Configuration options: [Enabled] [Disabled]
Memory Hole Remapping [Enabled]
Allows you to enable or disable Memory Hole Remapping fuction.
Configuration options: [Enabled] [Disabled]
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 decide which graphics controller to use as the primary boot device.
Configuration options: [PCI/PEG] [PEG/PCI]