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6.9 PCI Subsystem Settings
The items in this menu allow you to configure PCI, PCI-X, and PCI Express settings.
Above 4G Decoding
Allows you to enable or disable 64bit capable Devices to be Decoded in Above 4G Address
Space (Only if System supports 64 bit PCI Decoding).
Configuration options: [Disabled] [Enabled]
Only enabled under 64bit operating system.
The following item appears only when Above 4G Decoding is set to [Enabled].
Re-Size BAR Support
If the system has Resizable BAR capable PCIe Devices, this option enables or disables
Resizable BAR Support (Only if System supports 64 bit PCI Decoding).
Configuration options: [Disabled] [Enabled]
To enable Re-Size BAR Support for harnessing full GPU memory, please go to the Boot
section and set CSM(Compatibility Support Module) to [Disabled].
Endorsement Hierarchy
Allows you to enable or disable the Endorsement Hierarchy.
Configuration options: [Disabled] [Enabled]
Physical Presence Spec Version
Allows you to select to Tell O.S. to support PPI Version 1.2 or 1.3.
Configuration options: [1.2] [1.3]
Some HCK tests might not support 1.3.
TPM 2.0 UEFI Spec Version
Allows you to select the TCG2 spec version support.
[TCG_1_2] Windows 8 / Windows 10 compatible mode.
[TCG_2] Supports the new TCG2 protocol and event for Windows 10 or later.