Supermicro X7DBR-3, User Manual

Page: 45 / 131

Chapter 2: Installation
2-25
®
S
UPER X7DBR-3/E
Fan1
8-pin PWR
FP Ctrl
IDE1
Floppy
SATA1
SATA0
USB2/3
SMB
North Bridge
20-pin ATX Main PWR
JPG1
SAS
CTRLR
CPU1
South
Bridge
JAR
PWR
SMB
Fan2
Compact Flash
JCF1
JWF1
JL1
PCI-X 133MHz
USB4/5
WOL
DIMM 4A
DIMM 4B
KB
MS
USB0/1
COM1
GLAN2
GLAN1
JI
2
C1
E2x8 SXB-
VGA
SAS 4-7
JWD
SATA3
SATA2
SATA5
SATA4
Fan5
Fan4
Fan3
4-pin
PWR
3rd PWR
Fail
Buzzer
JPWF
Bank4
Bank3
E3x8 SXB-
JPL1 JPL2
WOR
JBT1
GLAN
CTRLR
VGA
CTRLR
BIOS
DIMM 3A
DIMM 3B
DIMM 2A
DIMM 2B
Bank2
Bank1
DIMM 1A
DIMM 1B
CPU2
SIMSO
COM2
PCI-X 100MHz ZCR SXB- E1x8
JI
2
C2
PWLED SPK
LE1
JOH1
J7
SGPIO1
SGPIO2
S I/O
Pres#4-7
Act#4-7
IPMB
JPS1
JP11
JP10
PXH-V
J4E3
J8
Battery
SAS 1-3
Act#0-3
Pre#0-3
JP12
JS10
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.
A
B
A. Clear CMOS
B. Watch Dog Enable
Watch Dog
Jumper Settings (JWD)
Jumper Setting Defi nition
Pins 1-2 Reset
(*default)
Pins 2-3 NMI
Open Disabled
Watch Dog Enable/Disable
JWD allows you to enable the Watch Dog timer.
Watch Dog is used for system monitoring. It can
cause the system to reboot 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 is hung up. See the table on the
right for jumper settings. Watch Dog must also
be enabled in BIOS.
Note:
When enabled, the user needs to write
his/her own application software in order to dis-
able the Watch Dog Timer.