Figure 20. R720Xd System Board Block Diagram - Dell PowerEdge R720 Technical Manual

DELL Select
Network
Adapter
Front Video Serial Port
Rear Video
To Front
Panel
2x30
Video UART
SPI
iDRAC
MAC
SD
Rear
External
SD
System Power BP Power
Connectors Conns. 4X
Power Power
Supply 1 Supply 2
(495W /750W/ (495W /750W/
1100W ) 1100W )
PowerEdge R720 and R720xd Technical Guide
65

Figure 20. R720xd system board block diagram

USB2.0
RJ45
Two Rear
Key
USB2.0
Ports
One Front
USB2.0
Ports
TPM
SATA
USB
MGMT
MAC
USB
USB
PCIe South
PCIe PCIe
LPC Bridge
LPC
LPC
TPM
PCIe x1 port 3
+ port 4
Internal
PERC
GPGPU
BP Signal
Power
Conns. 4X
Conn.
DIMM3 DIMM3 DIMM3
USB2.0
DIMM2 DIMM2 DIMM2
IDSDM
DIMM1 DIMM1 DIMM1
DDR3 DDR3 DDR3
Coin
Cell CH1 CH2
CH0
MiniSAS
Conn
DMI 2GB/s
CPU1
Port 0(DMI)
SAS A/B (To
Backplane) (Port 2C, 2D)
x8
x8
x8
Storage
Connector
DELL Select
Center Riser
Storage
Network
(Slot 5)
Connector Adapter Slot
DIMM3 DIMM3 DIMM3
DIMM3
DIMM2 DIMM2 DIMM2
DIMM2
DIMM1 DIMM1 DIMM1
DIMM1
DDR3 DDR3 DDR3
DDR3
CH3
CH1 CH2
CH0
QPI0
QPI 1.1
QPI1
CPU2
QPI 1.1
QPI1
QPI0
x8
x8 x8
x8 x8
Center Riser
Right Riser PCIe x16
X16 Left Riser
(Slot 6)
(Slot 1) Connector
(Slot 4)
DIMM3
DIMM2
DIMM1
DDR3
CH3
x8
x8
Right Riser
(Slot 2) &
(Slot 3)