American Megatrends MB970, User Manual

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BIOS SETUP
MB970 User’s Manual 25
Maximum Payload
Set Maximum Payload of PCI Express Device or allow System BIOS to
select the value.
Maximum Read Request
Set Maximum Read Request Size of PCI Express Device or allow System
BIOS to select the value.
ASPM Support
Set the ASPM Level: Force L0s
–
Force all links to L0s State:
AUTO
–
BIOS auto configure : DISABLE
–
Disables ASPM.
Extended Synch
If ENABLED allows generation of Extended Synchronization patterns.
Link Training Retry
Defines number of Retry Attempts software will take to retrain the link if
previous training attempt was unsuccessful.
Link Training Timeout (uS)
Defines number of Microseconds software will wait before polling
‘
Link
Training
’
bit in Link Status register. Value range from 10 to 1000 uS.
Unpopulated Links
In order to save power, software will disable unpopulated PCI Express
links, if this option set to
‘
Disable Link
’
.