S/Pdif Connector; Front Audio Connector - AOpen AX45-4D Max Easy Installation Manual

6. Memory & AGP Voltage Adjustment
With our considerate design, you can adjust memory and AGP voltage in BIOS. The
memory voltage range is from 2.5V to 2.7V and the AGP voltage is from 1.5V to 1.6V.
Note: You will have to take
your own risk to adjust those
voltages.

7. Front Audio Connector

If the housing has been designed with an audio port on the front panel, you'll be able to
connect onboard audio to front panel through this connector. By the way, please remove the
jumper caps from the Front Audio Connector before you connect the cable. Do not remove
the yellow jumper caps if your housing doesn't have an audio port on the front panel.
Pin 1
1 2
AUD_GND
AUD_MIC
AUD_VCC
AUD_MIC_BIAS
AUD_RET_R
AUD_FPOUT_R
KEY
NC
AUD_RET_L
AUD_FROUT_L
9 10

8. S/PDIF Connector

S/PDIF (Sony/Philips Digital Interface) is a latest audio transfer file format that provides
impressive quality through optical fiber and allows you to enjoy digital audio instead of
analog. Normally there are two S/PDIF outputs as shown, one for RCA connector, the
most common one used for consumer audio products, and the other for optical connector
with a even better audio quality. Through a specific audio cable, you can connect the
S/PDIF connector to a S/PDIF audio module bearing S/PDIF digital output. However, you
must have a S/PDIF supported speaker with S/PDIF digital input to make the most of this
function.
S/PDIF OUT (RCA)
Pin 1
S/PDIF IN
S/PDIF OUT
S/PDIF IN (Optical)
S/PDIF Cable
S/PDIF Module
9. Die-Hard BIOS and JP24
Many viruses have been found lately that they may destroy bios code and data area. This
motherboard implements a very effective hardware protection method without any software
or BIOS coding involved, therefore it is 100% virus free. You can also choose whether you
want to boot your system from BIOS 1 or BIOS2 by setting JP24. When it sets to pin1-2,
you can boot your system from BIOS 1 and boot from BIOS 2 when you set it to pin2-3.
BIOS 2
BIOS 1
Pin1
1 1
Boot from
Boot from
BIOS 2
BIOS 1
Pin1