IBASE Technology IB980, User Manual

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BIOS SETUP
34
IB980 User’s Manual
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
’
.
Restore PCIE Registers
On non-PCI Express aware OS
’
s (Pre Windows Vista) some devices may
not be correctly reinitialized after S3.Enabling this restors PCI Express
device configuration on S3 resume
Warning: Enabling this may cause issues with other hardware after S3
resume.