10 I/O Slots; Overview; Pci Risers - Dell PowerEdge R815 Technical Manual

Dell

10 I/O Slots

10.1

Overview

See Expansion Cards and Expansion-Card Risers section in the Installing System
Components chapter of the PowerEdge R815 Hardware Owner's Manual.
The PowerEdge R815 includes a total of 6 PCI slots that reside on the IO planar and
two riser cards.
Two low-profile PCI Express slots are provided on the IO planar.

Slot3:
o Physical x8 (x8 electrical) PCI Express Gen2 slot

Slot4:
o Physical x8 (x8 electrical) PCI Express Gen2 slot
o NC-SI cable header for NC-SI supported NICs
The two PowerEdge R815 PCI Express risers provide up to four expansion slots and one
internal slot as follows:

Riser1 (Center; all slots are controlled from the PEX8642 PCIe Gen2 arbiter):
o Slot1 (top)

o Slot2 (bottom)




Riser2 (Left):
o Slot5 (top)

o Slot6 (bottom)


The PowerEdge R815 supports 25W maximum power for the 1
rd th
for the 3 through 6
due to system thermal limitations.
10.2

PCI Risers

The PowerEdge R815 requires two PCI Express risers: Riser1 and Riser2. Both risers
must be connected for the system to power up. Each riser connects to the planar
through a physical x16 PCI Express connector with Dell custom pin-out. See 0.
Dell PowerEdge R815 Technical Guide
Physical x16 (x8 electrical) PCI Express Gen2 slot
Physical x8 (x4 electrical) PCI Express Gen2 slot
Storage Slot (internal, accommodates internal RAID controllers
with no sled)
Physical x8 Storage adapter (x4 electrical) PCI Express Gen2 slot
Physical x16 (x8 electrical) PCI Express Gen2 slot
Physical x16 (x8 electrical) PCI Express Gen2 slot
Both slots are controlled from the IOB PCIE Gen2 arbiter (port
GPP)
cards. The lower power support on the 3
st nd
and 2 cards and 15W
rd th
through 6 cards is
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