Cmos Clear; Watch Dog - Supermicro X7DCA-3 User Manual

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 clear-
ing 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 is a system monitor that can reboot
the system when a software application hangs.
Close pins 1-2 to reset the system if an applica-
tion 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 set-
tings. Watch Dog must also be enabled in the
BIOS.
FAN6 FAN5
JPW1 JPW3
DIMM1A
DIMM1B
DIMM2A
DIMM2B
DIMM3A
DIMM3B
JPL2
LAN
CTRL
JPL1
LAN
CTRL
SLOT7 SIMLP IPMI
Audio CTRL
SLOT6 PCI-E X16
JC2
SLOT5 PCI 33MHz
CD1
SLOT4 PCI-E X4 (in X16 slot)
JI2C4
JI2C1
JPF
JI2C3
JI2C2
SLOT3 PCI 33MHz
S I/O
T-SGPIO1
SLOT2 PCI-X 133/100MHz
SLOT1 PCI-X 133/100MHz
FLOPPY IDE1
J6
J3P1
FAN7
DIMM1-1
DIMM0-1
DIMM1-2
CPU1
DIMM0-2
DIMM1-3
DIMM0-3
Intel 5100
MCH
CPU2
A
JBT1
I-button
Intel
ITE
ICH9R
CTRL
Battery
LES1
LES2
T-SGPIO2
JPS1
SAS
PXH-V
CTRL
BIOS
JP1
USB8
USB9
USB6/7
USB4/5
J5
JL1
JWOR1
2-27
Chapter 2: Installation

Watch Dog

Jumper Settings (JWD)
Jumper Setting
Pins 1-2
Pins 2-3
Open
A. Clear CMOS
JAR
JP3
JPW2
B. Watch Dog Enable
LE1
JF1
SP1
I-SATA0
I-SATA1
I-SATA2
I-SATA3
I-SATA4
I-SATA5
B
JWD1
Defi nition
Reset
(default)
NMI
Disabled