Asus P9A-I Series User Manual page 62

Link Training Retry [5]
Selects or disables the number of retry attempts that the software will take to retrain the link if
the previous training attempt was unsuccessful. Configuration Options: [Disabled] [2] [3] [5]
Link Training Timeout (us) [1000]
Defines number of Microseconds that the software will wait before polling Link Training bit in
Link Status register. The value ranges from 10 to 10000us.
Unpopulated Links [Keep Link ON]
When this item is set to [Disabled], the software will disable unpopulated PCIe links to save
power. Configuration Options: [Keep Link ON] [Disable Link]
Restore PCIE Registers [Disabled]
On non-PCIe aware operating systems (like Windows Vista), some devices may not be
correctly reinitialized after S3. Enabling this item to restore PCIe device configurations on
S3 resume. Enabling this item may cause problems with other hardware after S3 resume.
Configuration Options: [Enabled] [Disabled]
PCI Express GEN 2 Settings
Allows you to set up the PCIE Gen 2 configurations.
Aptio Setup Utility - Copyright (C) 2013 American Megatrends, Inc.
Advanced
PCI Express GEN2 Device Register Settings
Completion Timeout
ARI Forwarding
AtomicOp Requester Enable
AtomicOp Egress Blocking
IDO Request Enable
IDO Completion Enable
LTR Mechanism Enable
End-End TLP Prefix Blocking
PCI Express GEN2 Link Register Settings
Target Link Speed
Clock Power Management
Compliance SOS
Hardware Autonomous Width
Hardware Autonomous Speed
Completion Timeout [Default]
Allows system to modify the Completion Timeout value for devices that support Completion
Timeout programmablility. Configuration Options: [Disabled] [Default] [Shorter] [Longer]
ARI Forwarding [Disabled]
If your PCIe device supports this function and this item is set to [Enabled], the downstream
port disables its traditional device number field being 0 enforcement when turing a Type1
configuration request into a Type0 configuration request, permitting access to extended
functions in an ARI device immediately below the port. Configuration Options: [Disabled]
[Enabled]
AtomicOp Requester Enable [Disabled]
If your PCIe device supports this function and this item is set to [Enabled], this function
initiates AtomicOp Requests only if Bus Master Enable bit is in the Command Register Set.
Configuration Options: [Disabled] [Enabled]
4-20
[Default]
[Disabled]
[Disabled]
[Disabled]
[Disabled]
[Disabled]
[Disabled]
[Disabled]
[Auto]
[Disabled]
[Disabled]
[Enabled]
[Enabled]
In device Functions that
support Completion Timeout
programmablility, allows
system to modify the
Completion Timeout value.
'Default' 50us to 50ms.
If 'Shorter' is selected,
software will use shorter
timeout ranges supported by
hardware. If 'Longer' is
selected, software will use
Chapter 4: BIOS setup