User`s guide

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NovaScale R422-E2/R422-INF-E2 Installation and User's Guide
CMOS Clear
JBT1 is used to clear CMOS. Instead of pins, this "jumper" consists of contact pads
to prevent the accidental clearing of CMOS. To clear CMOS, use a metal object such
as a small screwdriver to touch both pads at the same time to short the connection.
Always remove the AC power cord from the system before clearing CMOS.
Note: For an ATX power supply, you must completely shut
down the system, remove the AC power cord and then
short JBT1 to clear CMOS.
Watch dog Enable/Disable
Watch Dog (JWD1) is a system monitor that reboots
the system when a software application hangs. Close
Pins 1-2 to reset the system if an application hangs.
Close Pins 2-3 to generate a non-maskable interrupt
signal for the application that hangs. See the table on
the right for jumper settings. Watch Dog must also be
enabled in the BIOS..
Watch Dog
Jumper Settings
Jumper Setting Denition
Pins 1-2 Reset (default)
Pins 2-3 NMI
Open Disabled
A: Clear CMOS
B: Watch Dog Enable