Chapter 4: BIOS
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Socket 0 PCI-E Br0D00F0 - Port 0/DMI (Available for CPU 1 Confi guration
only)
Link Speed
This item confi gures the link speed of a PCI-E port specifi ed by the user. The options
are Auto, Gen 1 (Generation 1) (2.5 GT/s), Gen 2 (Generation 2) (5 GT/s), and Gen 3
(Generation 3) (8 GT/s)
The following information will be displayed as well:
• PCI-E Port Link Status
• PCI-E Port Link Max
• PCI-E Port Link Speed
PCI-E Port Max (Maximum) Payload Size (Available for CPU 1 Confi guration only)
Select Auto for the system BIOS to automatically set the maximum payload value for a
PCI-E device specifi ed by to user to enhance system performance. The options are Auto,
128B, and 256B.
IOAT Confi guration
Disable TPH (TLP Processing Hint)
TPH is used for data-tagging with a destination ID and a few important attributes. It can
send critical data to a particular cache without writing through to memory. Select No in this
item for TLP Processing Hint support, which will allow a "TPL request" to provide "hints"
to help optimize the processing of each transaction occurred in the target memory space.
The options are Yes and No.
Prioritize TPH (TLP Processing Hint)
Select Yes to prioritize the TPL requests that will allow the "hints" to be sent to help facilitate
and optimize the processing of certain transactions in the system memory. The options are
Enable and Disable.
Relaxed Ordering
Select Enable to enable Relaxed Ordering support which will allow certain transactions to
violate the strict-ordering rules of PCI and to be completed prior to other transactions that
have already been enqueued. The options are Disable and Enable.
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