Supermicro SUPERSERVER 4028GR-TR User Manual page 99

Gen3 DN Rx Preset Hint
This feature allows the user to select a preset setting for a downstream
component receiver. The options are Auto, P0 (-6.0 dB), P1 (-7.0 dB), P2 (-8.0
dB), P3 (-9.0 dB), P4 (-10.0 dB), P5 (-11.0 dB), and P6 (-12.0 dB).
Gen3 UP Tx Preset
This feature allows the user to select the preset setting for a upstream
component transmitter. The options are Auto, P0 (-6.0/0.0 dB), P1 (-3.5/0.0 dB),
P2 (-4.5/0.0 dB), P3 (-2.5/0.0 dB), P4 (0.0/0.0 dB), P5 (0.0/2.0 dB), P6 (0.0/2.5
dB), P7 (-6.0/3.5 dB), P8 (-3.5/3.5 dB), and P9 (0.0/3.5 dB).
Non-Transparent Bridge PCIe Port D (Port 3A only)
Select Transparent Bridge to configure the device installed on a PCI slot
specified by the user as a transparent bridge (TB) device. Select NTB (Non-
Transparent Bridge) to NTB to configure the device installed on a PCI slot
specified by the user as a non-transparent bridge (TB) device used to connect
to another TB device. The options are Transparent Bridge, NTB to NTB, and
NTB to RP.
Hide Port?
Use this feature to hide the root port from the operating system. The options
are no and yes.
IOAT (Intel® IO Acceleration) Configuration
Enable IOAT
Select Enable to enable Intel I/OAT (I/O Acceleration Technology) support,
which will significantly reduce CPU overhead by leveraging CPU architectural
improvements and freeing the system resource for other tasks. The options are
Disable and Enable.
No Snoop
Select Enable to support no-snoop mode for each CB device. The options are
Disable and Enable.
Relaxed Ordering
Select Enable to enable Relaxed Ordering support which will allow certain
transactions to violate the strict-ordering rules of PCI bus for a transaction to be
completed prior to other transactions that have already been enqueued earlier.
The options are Disable and Enable.
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Chapter 7: AMI BIOS