Dell PowerEdge R715 Technical Manual

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Dell PowerEdge R715 Technical Manual Manual pdf 36 page image

DellPowerEdge R715 Technical Guide 3610 I/O Slots10.1 OverviewThe PowerEdge R715 includes a total of six PCIe slots and one dedicated internal storage card slot.All slots are PCI Express Gen 2. See Table 11 for more information.Table 11. PCI Expansion SlotsPCI Slot # Mechanical Electrical Height Length Bracket Max Power1 x16 x8 4.376‖ 9.5‖ FHSystem cansupport2x 25W +4x 15Wcards2 x8 x4 4.376‖ 9.5‖ FH3 x8 x8 4.376‖ 9.5‖ LP4 x8 x8 4.376‖ 9.5‖ LP5 x16 x8 4.376‖ 9.5‖ FH6 x16 x8 4.376‖ 9.5‖ FHInternal x8 x4 — — — —Two low-profile PCI Express slots are provided on the IO planar as follows: Slot3 Slot4 (NC-SI cable header for NC-SI supported NICs)The two PCI Express risers provide up to four expansion slots and one internal slot as follows: Riser1 (center riser; all slots are controlled from the PEX8642 PCIe Gen2 arbiter):o Slot1 (top)o Slot2 (bottom)o Storage adapter (internal slot; accommodates internal RAID controllers with no sled) Riser2 (left riser; both slots are controlled from the IOB PCIe Gen2 arbiter [port GPP]):o Slot5 (top)o Slot6 (bottom)The PowerEdge R715 supports 25W maximum power for the 1st and 2nd cards and 15W for the 3rdthrough 6th cards. The lower power support on the 3rd through 6th cards is due to system thermallimitations.For more information about the PCI expansion slots, see the Expansion Cards and Expansion-CardRisers section in the Installing System Components chapter in the PowerEdge R715 Hardware Owner’sManual on Support.Dell.com.10.2 PCI RisersThe PowerEdge R715 requires two PCI Express risers: Riser1 and Riser2. Both risers must beconnected for the system to power up. Each riser connects to the planar through a physical x16 PCIExpress connector with a Dell custom pin-out. There is no support for hot-plug or hot-removal for therisers.10.3 Boot OrderThe boot order can be customized based on bootable devices detected by the BIOS.