Warning:
1. Disconnect the power cable before adjusting the jumper settings.
2. Do not clear the CMOS while the system is turned on.
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.
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).
30
Chapter 2
661M03 Series User Manual
Installation Instructions
1
Flash write
2
Disable
3
Flash write
1
Enable
2
3
(Default)
BIOS-Protection Jumper
3
Enable
2
CNR Audio
1
Enable onboard
3
Audio (Default)
2
1
CNR Audio Selection Jumper
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