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X9SPV-M4 Motherboard User's Manual
No Snoop
Select Enabled to activate the PCI Express no snoop option. The options are
Disabled and
Enabled
.
Extended Synch
Select Enabled for Extended Synchronization support, which will extend the
same synchronization patterns for the PCI-E device. The options are
Disabled
and Enabled.
Link Training Retry
This feature allows the user to decide how many attempts a software program
can make before time-out for the program. The default setting is 5. The options
are Disabled, 2, 3, and
5
.
Link Training Timeout (US)
This feature allows the user to decide how many microseconds a software pro-
gram should wait before polling the 'Link Training' bit in the Link Status Register.
The range is between 10 to 1000. The default setting is
1000
.
Unpopulated Links
Select Disable Link to disable the unpopulated PCI-E links (connections) to save
power. The options are
Keep Link ON
and Disable.
PCI Express GEN 2 Settings
Completion Timeout
For device functions that support completion time-out programmability, this fea-
ture allows system software to modify the completion time-out value. If Default is
selected, the time-out value is 50us to 50ms. If Shorter is selected, the software
will use shorter time-out ranges supported by the hardware. If Longer is selected,
software will use longer ranges supported by the hardware. The options are
Default
, Shorter, Longer, and Disabled.
ARI Forwarding (If supported by the hardware)
If set to Enabled, the downstream port disables it's traditional Device Number
field (0 enforcement) when turning a Type1 Configuration Request into a Type0
Configuration Request, permitting access to Extended Functions in an ARI device
immediately below the port. The options are
Disabled
and Enabled.
AtomicOp Requester Enable (If supported by the hardware)
This feature initiates AtomicOp requests only if Bus Master Enable bit is in the
Command Register set. The options are
Disabled
and Enabled.
