Chapter 2 Installation Instructions
30
661M03 Series User Manual
Enable
CNR Audio
Enable onboard
Audio (Default)
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3
2
1
3
2
CNR Audio Selection Jumper
BIOS-Protection Jumper: FWH_EN
The motherboard BIOS is inside the FWH. If the jumper FWH_EN is set as
disable (Pin2 & Pin3), the system BIOS is protected from being attacked by a
serious virus, such as the CIH virus. You will be unable to flash the BIOS to the
motherboard when the system BIOS is protected.
Flash write
Disable
Flash write
Enable
(Default)
BIOS-Protection Jumper
1. Disconnect the power cable before adjusting the jumper settings.
2. Do not clear the CMOS while the system is turned on.
Warning:
CNR Audio Selection Jumper: J24
This jumper is used to set enable or disable CNR audio. The default status for
J24 is set to disable (Pin1 & Pin2), then you cannot use the CNR audio and
onboard audio is available. If you want to use CNR audio, set J24 to enable
(Pin2 & Pin3).
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