User Manual

4-24
Chapter 4: BIOS Setup
Re-Size BAR Support [Disabled]
IfsystemhasResizableBARcapablePCIeDevices,thisoptionenablesordisables
Resizable BAR Support. (Only if system supports 64-bit PCI Decoding).
Congurationoptions:[Disabled][Auto]
ToenableRe-SizeBARSupportforharnessingfullGPUmemory,pleaseset
CSM
(Compatibility Support Module)
to
[Disabled]
.
SR-IOV Support [Disabled]
AllowsyoutoenableordisableSingleRootIOVirtualizationSupport,ifyoursystemhasSR-
IOV capable PCIe Devices.
Congurationoptions:[Disabled][Enabled]
PCI Express Settings
The items in this submenu allow you change PCI Express Devices Settings.
PCI Express Device Register Settings
Relaxed Ordering [Enabled]
Allows you to enable or disable PCI Express Device Relaxed Ordering.
Conguration
options:[Disabled][Enabled]
Extended Tag [Disabled]
IfthisitemissettoEnabled,itwillallowDevicetouse8-bitTageldasarequester.
Conguration
options:[Disabled][Enabled]
No Snoop [Enabled]
Allows you to enable or disable PCI Express Device No Snoop option.
Conguration
options:[Disabled][Enabled]
Maximum Payload [Auto]
Allows you to set Maximum Payload of PCI Express Device or allow System BIOS to
select the value.
Conguration
options:[Auto][128Bytes][256Bytes][512Bytes][1024Bytes][2048
Bytes][4096Bytes]
Maximum Read Request [Auto]
Allows you to set Maximum Read Request Size of PCI Express Device or allow System
BIOS to select the value.
Conguration
options:[Auto][128Bytes][256Bytes][512Bytes][1024Bytes][2048
Bytes][4096Bytes]
PCI Express Link Register Settings
ASPM Support [Disabled]
Allows you to set the ASPM level.
[Disabled] DisablesASPM.
[Auto] BIOSautocongure.
[ForceL0s] ForcealllinkstoL0State.
Enabling ASPM may cause some PCI-E devices to fail.