Chapter 5: BIOS Setup
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No Snoop [Enabled]
This option allows you to enable or disable PCI Express Device No Snoop option.
Congurationoptions:[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.
Congurationoptions:[Auto][128Bytes][256Bytes][512Bytes][1024Bytes]
[2048Bytes][4096Bytes]
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.
Congurationoptions:[Auto][128Bytes][256Bytes][512Bytes][1024Bytes]
[2048Bytes][4096Bytes]
PCI Express Link Register Settings
ASPM Support [Disabled]
This option allows you to set the ASPM level.
[ForceL0s] ForcealllinkstoL0sState.
[Auto] BIOSautocongure.
[Disabled] DisablesASPM.
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
.
Congurationoptions:[Disabled][Enabled]
Link Training Retry [5]
ThisoptionallowsyoutosetthenumberofRetryAttemptssoftwarewilltaketoretrain
thelinkifprevioustrainingattemptwasunsuccessful.
Congurationoptions:[Disabled][2][3][5]
Link Training Timeout [1000]
This option allows you to set the number of Microseconds software will wait before
polling‘LinkTraining’butinLinkStatusRegister.Thevaluerangesfrom10to10000
uS.
Unpopulated Links [Keep Link On]
ThisoptionwilldisableunpopulatedPCIExpresslinkstosavepowerwhensetto
Disabled.
Congurationoptions:[Disabled][KeepLinkOn]