15
Chapter 1: Introduction
Figure 1-4. System Block Diagram
Note:
This is a general block diagram and may not exactly represent the features on your
motherboard. See the System Specifications appendix for the actual specifications of your
motherboard.
System Block Diagram
eSPI
CPU
U1
SoC
PE1[15:0]
DDR4 DIM
M
A1
PE2[7:0]
DDR4 DIM
M
B1
DDR4 1866/2133/2400
B
A
DDR4 DIM
M
DDR4 DIM
M
E
D
KR
PE2[15:12]
PE2[11:8]
PCH
DDR4 1866/2133/2400
SFI
X557-AT2
JLAN3
Flexible I/O
17
10G PHY
Flexible I/O
6,7
Flexible I/O
16
JPCIE2 SLOT6 PCIE 3.0 x16
PCIE 3.0 x16
JPCIE1 SLOT7 PCIE 3.0 x8
PCIE 3.0 x8
Flexible I/O
18~25
Flexible I/O
12~15
Flexible I/O
10
DDR 3
BMC
AST2500
PHY
RTL8211F VGA CONN
IPMI LAN
SPI
FLASH
PCIE 3.0 x1
Flexible I/O
11
VGA
USB3.0
10G LAN SFP+
3rd LAN
+
SFP+
PCIE 3.0 x4
JLAN1
I350 AM4
JLAN2
M.2(M-key)CONN
PCIE 3.0 x4
SATA3.0#5
Flexible I/O
8,9
MINI-SAS HD / U.2
PCIE 3.0 x8 /
SATA GEN3 x8
SATA3.0#0
SATA3.0#1
SATA3.0#2
SATA3.0#3
PCIE 3.0 x1
miniPCIe
M.2(B-key)CONN
PCIE 3.0 x2
SATA3.0#4
SATA3.0
M.2(B-key)CONN
USB 2.0 Header
miniPCIe
USB 2.0
USB 2.0 Header
USB2.0 HUB
GL854G
USB 3.0/2.0
USB 3.0 Rear I/O
SPI
COM1
JTPM1 Header
REAR IO
1G LAN
1G LAN
E1
D1
