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SXB1
PCIe 5.0 x16
2x Intel I210
RJ45
RJ45
RGMII
PHY
RJ45
RTL8211FD-CG
DDR4
BMC
SPI
BMC Boot Flash
AST2600
COM1
VGA Connector
Connector
SYSTEM POWER
Temp Sensor
FAN SPEED
FRONT PANEL
CTRL
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.
Figure 1-3.
System Block Diagram
IMVP 9.1
6 PHASE for Vcore
1 PHASE for VCCIN AUX
PCIe Gen5 x16
#0–15
LGA1700
PCIe x1
LAN 2
#2
I210
PCIe x1
LAN 1
#1
I210
PCH-H
C266
PCIe x1
#3
USB 2.0
#8, 9 USB 2.0
eSPI
USB 2.0 #12–13
SPI
USB 2.0 #10–11
SPI
SMBUS
MUX
COM2
SPI
Header
BIOS
17
Chapter 1: Introduction
95 W
#B2
#B1
#A2
#A1
PEG60
DMI4
#0–3
DMI4 x8
M.2-C SSD
PCIe Gen4 x4
PCIe Gen4 x4
M.2-P SSD
#21/22/23/24
PCIe Gen4 x4
PCIe 4.0 x4 (in x16)
#5/6/7/8
PCIe Gen4 x8
#25/26/27/28
PCIe 4.0 x4 + x4
#9/10/11/12
SATA 6 Gb/s
Slim SAS x8 (SATA)
I-SATA0–7
USB 3.2
Gen 1 x1
#1–2
2x USB 3.2 Gen 1 x1 (Header)
USB 3.2
Gen 2 x1
#3–4
2x USB 3.2 Gen 2 x1 (Rear I/O)
USB 3.2
Gen 2 x1
#5
1x USB 3.2 Gen 2 x1 (Type-A Vertical)
USB 2.0
USB 2.0 #6–7
4x USB 2.0 (Header)
USB 2.0
2x USB 2.0 (Rear I/O)
SMBus
TPM HEADER
Debug Card
SXB2
MCIO
MCU
M2351
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