Supermicro SUPERSERVER 4028GR-TR User Manual page 93

IOU1 (IOU PCIe Port3)
This item configures the PCI-E port Bifuraction setting for a PCI-E port specified
by the user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
No PCIe Port Active ECO
This item provides a workaround solution when there is no PCIe port active.
The options are PCU Squelch exit ignore option and Reset the SQ FLOP
by CSR option.
Socket 0 PCIED00F0 - Port 0/DMI
This submenu allows the user to configure the settings for the following PCI-E
ports: 0, 1A, 1B, 2A, 2B, 2C, 2D, 3A, 3B, 3C, and 3D.
Link Speed
Use this item to configure the link speed of a PCI-E device installed on the
PCI-E slot specified by the user. The options are Auto, Gen 1 (2.5 GT/s), and
Gen 2 (5 GT/s).
PCI-E Port DeEmphasis
DeEmphasis is used to decrease the magnitude of very high frequencies in
relation to the magnitude of very low frequencies to improve the overall signal-
to-noise ratio by reducing the level of all (signals) data bits transmitted except
the first one, acting as a form of transmitter equalization to enhance signal
transmission and audio performance. The options are -6.0 dB and -3.5 dB.
The following items will display:
PCI-E Port Link Status
PCI-E Port Link Max
PCI-E Port Link Speed
PCI-E Port L0s Exit Latency
Use this item to configure the exit latency of the PCI-E port L0s link state,
measuring the length of time needed to transition from the L0s link state to L0.
The available latency option is 4uS - 8uS. (Note: "uS" stands for "microseconds.")
PCI-E Port L1 Exit Latency
Use this item to configure the exit latency of the PCI-E port L1 link state,
measuring the length of time needed to transition from the L1 link state to L0.
The latency options are <1uS, 1uS - 2uS, 2uS - 4uS, 4uS - 8uS, 8uS - 16uS,
16uS - 32uS, 32uS - 64uS, and >64uS. (Note: "uS" stands for "microseconds.")
7-9
Chapter 7: AMI BIOS