Asus RS700-E10-RS12U User Manual - Page 176
Override Max Link Width [Auto], PCI-E Port DeEmphasis [-3.5 dB]
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The following items appear only when PCI-E Port is set to [Auto] or [Enable]. Hot Plug Capable [Auto] This option specifies if the link is considered Hot Plug capable. Configuration options: [Auto] [Disable] [Enable] Surprise Hot Plug Capable [Disable] This option specifies if the link is considered Surprise Hot Plug capable. Configuration options: [Disable] [Enable] PCI-E Port Link Disable [No] This option disabled the link so that the no training occurs but the CFG space is still active. Configuration options: [No] [Yes] Link Speed [Auto] Choose the Link Speed for this PCIe port. Configuration options: [Auto] [Gen 1 (2.5 GT/s)] [Gen 2 (5 GT/s)] [Gen 3 (8 GT/s)] Override Max Link Width [Auto] Override the max link width that was set by bifurcation. Configuration options: [Auto] [x1] [x2] [x4] [x8] [x16] The following item appears only when Link Speed is set to [Auto], [Gen 2 (5 GT/s)], or [Gen 3 (8 GT/s)]. PCI-E Port DeEmphasis [-3.5 dB] De-Emphasis control (LNKCON2 [6]) for this PCIe port. Configuration options: [-6.0 dB] [-3.5 dB] PCI-E Port Clocking [Common] Configure port clocking via LNKCON [6]. This refers to this component and the down stream component. Configuration options: [Distinct] [Common] PCI-E Port Clock Gating [Enable] Allows you to enable or disable Clock Gating for this PCIe port. Configuration options: [Disable] [Enable] Data Link Feature Exchange [Enable] Allows you to enable or disable data link feature negotiation in the Data Link Feature Capabilities (DLFCAP) register. Configuration options: [Disable] [Enable] PCI-E Port MPSS [Auto] Configure Max Payload Size Supported in PCIe Device Capabilities register. Configuration options: [128B] [256B] [512B] [Auto] PCI-E Port D-state [D0] Set to D0 for normal operation, D3Hot to bi in low-power state. Configuration options: [D0] [D3Hot] PCI-E ASPM Support [Disable] Allows you to enable or disable ASPM (L1) support for the downstream devices. Configuration options: [Auto] [L1 Only] [Disable] 5-44 Chapter 5: BIOS Setup