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I/O Panel
1
2
17
16
1
PS/2 Mouse/Keyboard Port (Green/Purple)
2
D-Sub Port
* 3
USB 2.0 Ports (USB23)
** 4
LAN RJ-45 Port
5
Central / Bass (Orange)
6
Rear Speaker (Black)
7
Optical SPDIF Out Port
8
Line In (Light Blue)
*** 9
Front Speaker (Lime)
* It is recommended to install the USB Keyboard/Mouse cable to USB 2.0 ports (USB23)
instead of USB 3.0 ports.
** There are two LED next to the LAN port. Please refer to the table below for the LAN port LED
indications.
LAN Port LED Indications
Activity/Link LED
Status
Description
Status
Off
No Link
Off
Blinking Data Activity
Orange
On
Link
Green
***
If you use 2-channel speaker, please connect the speaker's plug into "Front Speaker Jack".
See the table below for connection details in accordance with the type of speaker you use.
TABLE for Audio Output Connection
Audio Output Channels Front Speaker Rear Speaker
(No. 9)
2
V
4
V
6
V
8
V
ASRock A75 Pro4 Motherboard
3
4
13
11
15
14
12
10
Microphone (Pink)
11
USB 3.0 Ports (USB01)
12
IEEE 1394 Port (IEEE 1394)
**** 13
eSATA3 Connector
14
Clear CMOS Switch (CLRCBTN)
15
HDMI Port
16
DVI-D Port
17
USB 3.0 Ports (USB45)
ACT/LINK
SPEED LED
Description
10Mbps connection
100Mbps connection
1Gbps connection
Central / Bass
(No. 6)
(No. 5)
--
--
V
--
V
V
V
V
5
8
6
9
7
10
SPEED
LED
LED
LAN Port
Line In or
Side Speaker
(No. 8)
--
--
--
V
3