B550D4-4L
10
11
English
1.6 I/O Panel
4
6
2
8
7
9
10
1
3
5
11 12
No. Description
No. Description
1
Serial Port (COM1)
7
LAN RJ-45 Port (LAN2)****
2
VGA Port (VGA1)*
8
HDMI 1.4 Port (HDMI1)**
3
LAN RJ-45 Port (IPMI_LAN)***
9
LAN RJ-45 Port (LAN3)****
4
USB 3.2 Gen1 Ports (USB3_1_2)
10
LAN RJ-45 Port (LAN4)****
5
LAN RJ-45 Port (LAN1)****
11
UID Switch (UID1)
6
USB 3.2 Gen2 Ports (USB3_3_4)
12
UID LED (UID_LED1)
*If the FRNT_VGA1 header is in use, there will be no signal on the rear VGA port.
**The HDMI1 port is only supported with APU (Renoir) is installed.
LAN Port LED Indications
***There are two LED next to the LAN port. Please refer to the table below for the LAN
port LED indications.
Dedicated IPMI LAN Port LED Indications
Activity / Link LED
Speed LED
Status
Description
Status
Description
Off
No Link
Off
10M bps connection or no
link
Blinking Yellow
Data Activity
Yellow
100M bps connection
On
Link
Green
1G bps connection
ACT/LINK LED
SPEED LED
LAN Port
