16
A+ Server AS -2123BT-Hxxx User's Manual
Figure 1-5. 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.
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
H11DST-B
AMD SP3
BMC
AST2500
CPU0 P0 [8]
CPU0 USB2 [1_2]
Rear USB
X 2
CPU0 USB3 [0_1:0]
VGA
COM
IPMI LAN
RJ45
PHY
RTL8211F
DDR4
LPC
BMC ROM
32MB
TPM
BIOS ROM
16MB
MUX
SPI
SPI
CPU0 P3 [15:0]
RMII
JSIOM1
SXB4
CPU1 P0 [15:8]
CPU0 P2 [15:0]
Micro SD
CPU0 USB2 [0_1:0]
xGMI
SXB3
SXB2
DDR
4
DI
M
M
#0
DDR
4
DI
M
M
#0
DDR
4
DI
M
M
#0
DDR
4
DI
M
M
#0
DDR
4
DI
M
M
#0
DDR
4
DI
M
M
#0
DDR
4
DI
M
M
#0
DDR
4
DI
M
M
#0
G
xGMI
CPU0 P1 [15:0]
JF2
CPU1 P2 [15:12]
SXB1
CPU1 P2 [11:8]
CPU1 P3 [15:0]
J2
M.2 Conn
M key
CPU0 P0 [15:12]
SATA
DOM
CPU0 P0 SATA[7]
CPU0 P0 SATA[6]
CPU0 USB2 [1_3]
JUSBA1
USB2.0
Type A
SATA6
CPU0 P0 SATA[5:0]
DDR
4
DI
M
M
#0
DDR
4
DI
M
M
#0
DDR
4
DI
M
M
#0
DDR
4
DI
M
M
#0
G
#0
DDR
4
DI
M
M
#0
DDR
4
DI
M
M
#0
DDR
4
DI
M
M
#0
DDR
4
DI
M
M
E
F
G
H
A
B
C
D
A
B
C
D
H
G
F
E
CPU0
CPU1
AMD SP3
AMD SP3
System Block Diagram
