South Bridge Configuration - Asus M5A99FX PRO R2.0 Manual

Power Down Enable [Disabled]
Enables or disables the DDR power down mode.
Configuration options: [Disabled] [Enabled]
Memory Hole Remapping [Enabled]
Configuration options: [Disabled] [Enabled]
DCT Unganged Mode [Enabled]
Configuration options: [Disabled] [Enabled]
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]
3.5.3

South Bridge Configuration

HPET [Enabled]
Allows you to set the HPET timer.
Configuration options: [Disabled] [Enabled]
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Chapter 3: BIOS setup