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PCI Express Link Register Settings
ASPM Support
Extended Synch
Link Training Retry
Link Training Timeout
Unpopulated Links
Setting
PCI Express Device Register Settings
Relaxed Ordering
Extended Tag
No Snoop
Maximum Payload
Maximum Read Request
PCI Express Link Register Settings
ASPM Support
Extended Synch Link Training Retry
Link Training Retry
Link Training Timeout
Unpopulated Links
WARNING: Enabling ASPM might cause some PCI-E devices to fail!
Set the ASPM Level:
- Force L0s - Force all links to L0s State
- AUTO - BIOS auto configure
- DISABLE - DisaBles ASPM
If Enabled, allows generation of Extended Synchronization patterns.
Defines number of Retry Attempts software will take to retrain
the link if previous training attempt was unsuccessful.
Defines number of Microseconds software will wait before polling 'Link Training' bit
in Link Status register. Value ranges from 10 to 10000 uS.
In order to save power, software will disable unpopulated PCI Express links, if this
option set to Disable. The options are Keep Link ON and Disalbel Link.
Description
Enables or Disables PCI Express Device Relaxed Ordering
If Enabled, allows Device to use 8-bit Tag field as a requester
Enables or Disables PCI Express Device No Snoop option
Set Maximum Payload of PCI Express Device or allow System BIOS to select the
value.
The available options are Auto, 128 Bytes, 256 Bytes, 512Bytes, 1024 Bytes,
2048 Bytes, and 4096 Bytes.
Set Maximum Read Request Size of PCI Express Device or allow System BIOS to
select the value.
The available options are Auto, 128 Bytes, 256 Bytes, 512 Bytes, 1024 Bytes,
2048 Bytes, and 4096 Bytes.
Set the ASPM Level:
- Force L0s - Force all links to L0s State
- AUTO - BIOS auto configure
- DISABLE - Disables ASPM
If Enabled, allows generation of Extended Synchronization patterns.
Defines number of Retry Attempts software will take to retrain
the link if previous training attempt was unsuccessful.
Defines number of Microseconds software will wait before
polling 'Link Training' bit in Link Status register. Value range
from 10 to 10000 uS.
In order to save power, software will disable unpopulated PCI
Express links, if this option set to Disable.
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