20
Chapter 1: Introduction
Figure 1-8. Motherboard Block Diagram
Motherboard Block Diagram
2
SPI
BIOS
PCI-E X1 G2
#13/10 USB2.0
6.0 Gb/S
ESPI
TMP432 *2 (RT1/RT2)
SPI
#5
DDR4
DMI3
#1
#2A
DMI3
PECI:30
SOCKET ID:0
#2B
D
M
I X
4
PC
I-E
G
EN
4
X8
SATA0-7
#0
SPI
M.2
PCI-E X4
PCI-E X16 G4
PCI-E X16 G4
PC
I-E
G
EN
4
X1
6
PC
I-E
G
EN
4
X1
6
PC
I-E
G
EN
4
X8
PCI-E X4 G4
(LANE REVERSE)
PCI-E X8 G4
8~15
SPI
SPI
0~7
#3A #3B
PC
I-E
G
EN
4
X8
PC
I-E
G
EN
4
X8
PCI-E TWO X4 G4
PCI-E X8 G4
6.0 Gb/S
#1
#0
SATA-DOM
#0~7
SSATA0-1
PCI-E X4 G3
#0~3
PCI-E X4 G3 (SATA X1)
#8~11
USB 2.0
Front USB2.0 x 2
Rear USB2.0 x 2
Front USB3.0 x 2
Type A USB3.2 Gen 1
Rear USB3.2 Gen 1 x 2
S
P
I
PCH
621A
USB 2.0
USB 3.2 Gen1
USB 2.0 x2
D
D
R
4
26
66
/2
93
3/
32
00
D
D
R
4
26
66
/2
93
3/
32
00
D
D
R
4
26
66
/2
93
3/
32
00
D
D
R
4
26
66
/2
93
3/
32
00
D
D
R
4
26
66
/2
93
3/
32
00
D
D
R
4
26
66
/2
93
3/
32
00
D
D
R
4
26
66
/2
93
3/
32
00
D
D
R
4
26
66
/2
93
3/
32
00
PC
I-E
x
1
6
PC
I-E
x
1
6
PC
I-E
x
8
PC
I-E
x
8
PC
I-E
x
8
SlimSAS
BMC
AST2600
BMC Boot
Flash
Dual Boot
Flash
NAND
FLASH
U
SB
U
SB
U
SB
U
SB
U
SB
sS
AT
A
Mini SAS HD
CPLD
(PFR)
SLOT 4
SLOT 6
SLOT 1
SLOT 2
SLOT 7
TPM HEADER
Temperature Sensor
LAN3 (To CMM)
RTL8211 FS-VS-CG
LAN 10G
X550-AT2
CPU1-B1 CPU1-A1 CPU1-D1 CPU1-C1
CPU1-G1 CPU1-H1
CPU1-F1
PVCCIN_CPU1 12V_STBY
VR13HC
7+1 PHASE
270W
LBG-R 1G
CPU1-E1
RGMII