Supero Supero H8DCE, User Manual

Page: 35 / 78

Chapter 2: Installation
2-17
CMOS Clear
JBT1 is used to clear CMOS and will also clear any passwords. Instead of pins,
this jumper consists of contact pads to prevent accidentally clearing the contents
of CMOS.
To clear CMOS,
1) First power down the system and unplug the power cord(s).
2) With the power disconnected, short the CMOS pads with a metal object such as
a small screwdriver for at least four seconds.
3) Remove the screwdriver (or shorting device).
4) Reconnect the power cord(s) and power on the system.
Notes:
Do not use the PW_ON connector to clear CMOS.
The onboard battery does not need to be removed when clearing CMOS, however
you must short JBT1 for at least four seconds.
JBT1 contact pads
I
2
C to PCI Enable/Disable
The JI 2 C1/2 pair of jumpers allows you
to connect the System Management
Bus to any one of the PCI expansion
slots. The default setting is closed (on)
for both jumpers to enable the connec-
tion. Both connectors must be set the
same (JI 2 C1 is for data and JI 2 C2 is for
the clock). See the table on right for
pin defi nitions.
I
2
C to PCI Enable/Disable
Jumper Settings
(JI 2 C1/2)
Jumper Setting Defi nition
Closed Enabled
Open Disabled
Audio Enable/Disable
Jumper JPAC is used to enable or
disable the audio. Onboard audio is
provided by AC97 audio CODEC for
high quality 6-channel (5.1) sound. The
default setting is on pins 1-2 to enable
the audio. See the table on right for
pin defi nitions.
Audio Enable/Disable
Jumper Settings (JPAC)
Both Jumpers Defi nition
Pins 1-2 Enabled
Pins 2-3 Disabled