Dell PowerEdge T550 Integrated Remote Access Controller 9 Attribute Registry - Page 352
BIOS.SlotBifurcation.Slot4Bif Read or Write, BIOS.SlotBifurcation.Slot5Bif Read or Write, BIOS.
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BIOS.SlotBifurcation.Slot4Bif (Read or Write) Description Controls the bifurcation of PCIe cards installed in the specified slot. When set to default, the slot will operate at the default bifurcation for that slot. When set to x4 All Bifurcation, the slot will bifurcate to either two or four x4 links depending on the slot capability. When set to x8 All Bifurcation the slot will bifurcate to two x8 links. When set to x16 All Bifurcation the slot will bifurcate to x16 links. When set to x4 x4 x8 Bifurcation the slot will bifurcate to two 4 links plus a x8 link When set to x8 x4 x4 Bifurcation the slot will bifurcate x8 link plus two x4 links NOTE: Only bifurcation options that the slot can support will be shown. Legal Values ● Allx16 ● Allx8 ● Allx4 ● x4 ● x16 ● x8 ● x4x4x8 ● x8x4x4 Default Value Not Applicable Write Privilege Server Control License Required iDRAC Express or iDRAC Enterprise Dependency Not applicable BIOS.SlotBifurcation.Slot5Bif (Read or Write) Description Controls the bifurcation of PCIe cards installed in the specified slot. When set to default, the slot will operate at the default bifurcation for that slot. When set to x4 All Bifurcation, the slot will bifurcate to either two or four x4 links depending on the slot capability. When set to x8 All Bifurcation the slot will bifurcate to two x8 links. When set to x16 All Bifurcation the slot will bifurcate to x16 links. When set to x4 x4 x8 Bifurcation the slot will bifurcate to two 4 links plus a x8 link When set to x8 x4 x4 Bifurcation the slot will bifurcate x8 link plus two x4 links NOTE: Only bifurcation options that the slot can support will be shown. Legal Values ● Allx16 ● Allx8 ● Allx4 ● x4 ● x16 ● x8 ● x4x4x8 ● x8x4x4 Default Value Not Applicable Write Privilege Server Control License Required iDRAC Express or iDRAC Enterprise Dependency Not applicable BIOS.SlotBifurcation.Slot6Bif (Read or Write) Description Controls the bifurcation of PCIe cards installed in the specified slot. When set to default, the slot will operate at the default bifurcation for that slot. When set to x4 All Bifurcation, the slot will bifurcate to either two or four x4 links depending on the slot capability. When set to x8 All Bifurcation the slot will bifurcate to two x8 links. When set to x16 All Bifurcation the slot will bifurcate to x16 links. When set to x4 352 BIOS Attributes
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![](/manual_guide/products/dell-poweredge-r250-integrated-remote-access-controller-9-attribute-registry-99d2fca/352.png)