AAEON EMB-BT1 - Manual (Page 45)

3-13 Chapter 3: BIOS setup
Extended Tag [Enabled]
When enabled, the PCI device uses an 9-bit tag field as requester.
Configuration options: [Enabled] [Disabled]
No Snoop [Enabled]
Configuration options: [Enabled] [Disabled]
Maximum Payload [Auto]
Set maximum payload of PCI Express Device. Configuration options: [Auto]
[128 Bytes] [256 Bytes] [512 bytes] [1024 Bytes] [2048 Bytes] [4096 Bytes]
Maximum Read Request [Auto]
Set maximum read request size of PCI Express Device. Configuration
options: [Auto] [128 Bytes] [256 Bytes] [512 bytes] [1024 Bytes] [2048 Bytes]
[4096 Bytes]
ASPM Support [Disabled]
Configuration options: [Auto] [Disabled] [Force L0s]
Extended Synch [Disabled]
Configuration options: [Enabled] [Disabled]
Link Training Retry [5]
Set number of retry attempts software will take to retrain the link if previous
training attempt was unsuccesful. Configuration options: [Disabled] [2] [3] [5]
Link Training Timeout (uS) [1000]
Set number of microseconds before recording Link Training bit in Link Status
register. Values range from 10 to 10000 uS.
Unpopulated Links [Keep Link ON]
To save on power, unused PCI Express links can be disabled. Configuration
options: [Keep Link ON] [Disable Link]
Restore PCIE Registers [Disabled]
Enable this option to correct issues with S3 with older operating systems.
Configuration options: [Enabled] [Disabled]
PCI Express GEN 2 Settings
Completion Timeout [Default]
Configuration options: [Default] [Shorter] [Longer] [Disabled]
ARI Forwarding [Disabled]
Configuration options: [Enabled] [Disabled]
Atomic0p Requester Enable [Disabled]
Configuration options: [Enabled] [Disabled]