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#1-6
#1-5
#1-4
#1-3
#1-2
#1-1
SAS3008
LAN Control
ALC888
DDR4
BMC
SPI
AST2500
BMC Boot
Flash
COM2
Header
VGA
CONN
Temp Sensor
W83773 at SMBUS
Note: This is a general block diagram and may not exactly represent the features on
your motherboard. See the previous pages for the actual specifications of your moth-
erboard.
Intel C621 System Block Diagram
#1-8
VCCP0
#1-7
DDR4
6 CH
Processor 1
(Socket: 0)
#1
#2A #2B
#3D
PCI-E X16 G3
PCI-E X8 G3
PCI-E X8 G3
2x1G
KR/KX
88E1512
RMII/NCSI
PCI-E X1 G2
USB 2.0
LPC
TPM Header
Super IO
Debug Card
PS/2
Keyboard/Mouse
15
VCCP1
UPI
10.4/11.2G
DDR4
P0
P1
UPI
Processor 2
(Socket: 1)
P1
P0
UPI
DMI
#1A
#1B
#2
#3
DMI
PCI-E X16 G3
PCI-E X16 G3
DMI3
PCI-E X8 G3
PCI-E X8 G3
#8
#7
#6
#5
#4
#3
#2
#1
6.0 Gb/S
PCH
USB 3.0
SPI
BIOS
Support for 2933MHz memory
is dependent on the CPU SKU
Chapter 1: Introduction
#2-8
#2-7
#2-6
#2-5
#2-4
#2-3
#2-2
6 CH
#2-1
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