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PCI Express Gen 2 Settings
PCI Express GEN2 Device Register Settings
Completion Timeout [Default]
This option allows system software to modify the Completion Timeout value for device
Functions which support Completion Timeout programmability.
[Default]
[Shorter]
[Longer]
[Disabled]
ARI Forwarding [Disabled]
If supported by hardware and set to Enabled, the Downstream Port disables
its traditional Device Number filed being 0 enforcement when turning 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]
Atomic0p Request Enable [Disabled]
If supported by hardware and set to Enabled, this function initiates Atomic0p Requests
only if Bus Master Enable bit is in the Command Register Set.
Configuration options: [Disabled] [Enabled]
Atomic0p Egress Blocking [Disabled]
If supported by hardware and set to Enabled, outbound Atomic0p Requests via Egress
Ports will be blocked.
Configuration options: [Disabled] [Enabled]
IDO Request Enable [Disabled]
If supported by hardware and set to Enabled, this permits setting the number of ID-
Based Ordering (IDO) bit (Attribute[2]) requests to be initiated.
Configuration options: [Disabled] [Enabled]
IDO Completion Enable [Disabled]
If supported by hardware and set to Enabled, this permits setting the number of ID-
Based Ordering (IDO) bit (Attribute[2]) requests to be initiated.
Configuration options: [Disabled] [Enabled]
LTR Mechanism Enable [Disabled]
If supported by hardware and set to Enabled, this enables the Latency Tolerance
Reporting (LTR) Mechanism.
Configuration options: [Disabled] [Enabled]
End-End TLP Prefix Blocking [Disabled]
If supported by hardware and set to Enabled, this function will block forwarding of
TLPs containing End-End TLP Prefixes.
Configuration options: [Disabled] [Enabled]
4-20
50us to 50ms.
Shorter timeout ranges supported by hardware will be used.
Longer timeout ranges supported by hardware will be used.
Disable Completion Timeout.
Chapter 4: BIOS Setup
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