Dell PowerEdge PDU Managed LED Technical Guide

51 PowerEdge R420 Technical Guide
Appendix D. System board block diagram
Figure 13. R420 system board block diagram
Coin
Cell
South
Bridge
PCIE GEN 2 x1
PCIE x
1
LPC
SATA
CPU
2
CPU1
USB
2
.
0
(
2 Rear)
USB x
2
BroadCom
1GbE x 2
USB x2
USB
USB
SATA
(1)
Power Supply 1
Power Supply 2
System
Power
Conn.
DDR
3 Memory
(1066/
1333/
1600
MHz
)
QPI
QPI
DMI
PCIe x
4
USB
QPI 8
.0
GT
/
s
QPI
8.0 GT/s
D
I
M
M
1
D
I
M
M
0
1
2
Left
* PCIe
x8
Conn.(x
4)
Slot
1
PCIe Gen2
x4
2GB/s
DMI
PCIe Gen
3
x16
16GB
/
s
x16
SATA
SATA
in mini
-
SAS
(4)
USB
2.0
IDSDM
USB 2
.
0
(2
Front)
Vflash
SD Conn.
Int.
USB
2
.0
iDRAC
Video
LPC
PCI
e
USB
SPI
SD
2
MGMT
MAC
LPC
TPM
RJ45
(w
/
PHY)
BP
Power
Conn.
DVD/
TBU
Power
Conn.
UART
Rear Video
Serial Port
RJ45
D
I
M
M
1
D
I
M
M
0
D
I
M
M
1
D
I
M
M
0
USB x1
USB x1
x4
DMI 2GB
/s
PCIe Gen3
x16
16GB/s
PCIe x8 Conn.
for int. PERC
PCIe Gen
3
x8
8GB
/s
x8
x
16
PCIe Gen2
x
2 1GB
/s
Front
Video
x
4
D
I
M
M
1
D
I
M
M
0
D
I
M
M
1
D
I
M
M
0
D
I
M
M
1
D
I
M
M
0
PDB+PIB
for RDNT PSU
Left* PCIe x
16 Conn
.
(
option for 2
rd CPU)
Slot 1
Right*
PCIe
x16
Conn
.
Slot
2
x16
FRU
IDRAC Port Card
Power Supply
System
Power
Conn.
BP
Power
Conn.
DVD/
TBU
Power
Conn.
Non-
RDNT PSU
Front
Panel
DVD

Dell PowerEdge PDU Managed LED Specifications

General

Brand	Dell
Model	PowerEdge PDU Managed LED
Category	Server
Language	English