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Extended Tag [Disabled]
This option allows Device to use an 8-bit Tag field as a requester when set to Enabled.
Configuration options: [Disabled] [Enabled]
No Snoop [Enabled]
This option allows you to enable or disable PCI Express Device No Snoop option.
Configuration options: [Disabled] [Enabled]
Maximum Payload [Auto]
This option allows you to set the Maximum Payload of PCI Express Device or allow
System BIOS to select the value.
Configuration options: [Auto] [128 Bytes] [256 Bytes] [512 Bytes] [1024 Bytes]
[2048 Bytes] [4096 Bytes]
Maximum Read Request [Auto]
This option allows you to set the Maximum Read Request of PCI Express Device or
allow System BIOS to select the value.
Configuration options: [Auto] [128 Bytes] [256 Bytes] [512 Bytes] [1024 Bytes]
[2048 Bytes] [4096 Bytes]
PCI Express Device Link Register Settings
ASPM Support [Disabled]
This option allows you to set the ASPM level.
[Force L0s]
[Auto]
[Disabled]
Enabling ASPM may cause some PCI-E devices to fail.
Extended Synch [Disabled]
This option allows the generation of Extended Synchronization patterns when set to
Enabled.
Configuration options: [Disabled] [Enabled]
Link Training Retry [5]
This option allows you to set the number of Retry Attempts software will take to retrain
the link if previous training attempt was unsuccessful.
Configuration options: [Disabled] [2] [3] [5]
Link Training Timeout [1000]
This option allows you to set the number of Microseconds software will wait before
polling 'Link Training' but in Link Status Register. The value ranges from 10 to 10000
uS.
Unpopulated Links [Keep Link On]
This option will disable unpopulated PCI Express links to save power when set to
Disabled.
Configuration options: [Disabled] [Keep Link On]
5-22
Force all links to L0s State.
BIOS auto configure.
Disables ASPM.
Chapter 5: BIOS Setup
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