Dell R710 Computer Hardware User Manual


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Dell™ PowerEdge™ R710 Technical Guidebook
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B. PCI Express Risers
The two PowerEdge R710 PCI Express risers provide up to four expansion slots and one internal slot
as follows:
•Twox8andtwox4PCIExpressGen2slots,connectedtotheIOH
•Onex4PCIExpressGen1slotforinternalstorage,connectedtotheIOH
•Supportforthreefull-height9.5"longPCIExpresscardsandonefull-heightbracket,low-prole
PCB PCI Express card
•Supportforeldupgradingoneslot(onthecenterriser)toafull-length12.2"PCIExpresscard
•Systemsupports25Wmaximumpowerforthersttwocardsand15Wforthethirdand
fourth cards
•Thelowerpowersupportonthethirdandfourthcardsisduetosystemthermallimitations
•Anoptionalx16risertoaccommodateinterfacecardsforexternalGPUboxesthatsupportsa
maximum power of 25W. Use of this riser reduces the number of PCI Express slots from four
to three
C. Additional Riser Restrictions
•TheriserconnectorsontheplanardonotsupportplugginginastandardPCIExpresscard.Do
not attempt this for troubleshooting.
•TwoPowerEdgeR710risersmustbeinstalledorthesystemwillnotpowerup.
D. X16 Express Card Specifications
The PowerEdge R710 supports x16 cards that meet the following requirements:
•Standardheight(4.376")
•Maximumlengthof9.5"(Half-lengthcardsare6.6";Full-lengthcardsare12.283")
•x16cardscanonlyplugintotheoptionalPowerEdgeR710x16leftriser
•Supportforfullbandwidthofx16Gen2link
•Nosupportforhot-plugorhot-removal
•Maximumpowerof25W
•ThePowerEdgeR710provides+12V,+3.3V,and+3.3VauxinaccordancewithPowerSupplyRail
Requirements (Table 4-1 of PCIe Card Electromechanical Spec, Rev 2.0)
•ThePowerEdgeR710x16slotisnotcompliantwiththePCIExpressx16Graphics
150W-ATX Specification
•x16cardsmustbecompliantwiththePCIExpressCardElectromechanicalSpecicationRev2.0
•x16cardsmustonlyoccupythespaceofoneslot.Cardsthatoccupythespaceoftwoslotsare
not supported
•Thex16cardislimitedto25Winitialstart-uppoweruntilitisconguredasahigh-power
device. If no value is set for the Slot Power Limit, the card is limited to 25W. The card must then
either scale down to 25W or disable operation per PCI Express Base Spec Rev 2.0
•Thex16cardmustbeabletosupportamaximumoperatingtemperatureof55°Casdenedin
the Dell PCI Environmental Spec and the PCI Express Card Electromechanical Spec. The
PowerEdge R710 provides a minimum transverse air velocity of 100 LFM (linear feet per minute)
to the x16 card.
E. Boot Order
PCIe scan order (from the BIOS HW spec v1.0)
IOHport1,2(PCIExpressGen1x4)–BroadcomBCM5709CGigabitEmbeddedNIC#1
IOHport3(PCIExpressGen1x4)–BroadcomBCM5709CGigabitEmbeddedNIC#2
IOHport4inBlueshorICH9port1-4inThidwick(PCIExpressGen1x4)–IntegratedPERC6iorSAS6i
on the Riser 1
IOH port 5 (PCI Express Gen2 x4) – Slot 2 on Riser 1
IOH port 6 (PCI Express Gen2 x4) – Slot 1 on Riser 1
IOH port 7/8 (PCI Express Gen2 x8) – Slot 3 on Riser 2
IOHport9/10(PCIExpressGen2x8)–Slot4onRiser2
ForPCI-eX16optionalleftriser,IOHport7,8,9,10arecombinedintoonex16PCI-eslot.
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