3
ASRock B75 Pro3 Motherboard
English
I/O Panel
* There is one 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
SPEED LED
Status Description Status Description
Off No Link Off 10Mbps connection
Blinking Data Activity Orange 100Mbps connection
On Link
Green 1Gbps connection
1
USB 2.0 Ports (USB01)
2
D-Sub Port (VGA1)
* 3
LAN RJ-45 Port
4
Central / Bass (Orange)
5
Rear Speaker (Black)
6
Line In (Light Blue)
** 7
Front Speaker (Lime)
8
Microphone (Pink)
9
Optical SPDIF Out Port
10 USB 2.0 Ports (USB23)
11 USB 3.0 Ports (USB3_01)
12 HDMI Port (HDMI1)
13 DVI-D Port (DVI1)
14 PS/2 Keyboard Port (Purple)
ACT/LINK
LED
SPEED
LED
LAN Port
1
2
3
4
5
10
6
7
11
12
8
9
13
14
**
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 Central / Bass Line in
(No. 7)
(No. 5) (No. 4) (No. 6)
2 V
-- -- --
4
V V -- --
6 V
V V --
8 V
V V V
