SUPER MICRO Computer 1.2b Computer Hardware User Manual


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Chapter 2: Installation
2-31
JBT1
1
DP5
A
JPI2C1
CNF1
USB6/7
JLPC80
VGA (Top)
AUDIO
JPI1
JPG1
JWD1
JPT1
JPW2
JPW3
JPW1
SP1
FAN2
FAN6
FAN5
J14
JBAT1
JOH1
JL1
JI2C2
JI2C1
JD1
KB/MS
CD1
JIDE1
USB
2/3/4/5
JUSB2
SMBUS1
ALWAYS POPULATE DIMM1 FIRST
Slot7 PCI-E 2.0 x8
FAN3
FAN1
P2 DIMM3A
P2 DIMM3B
P2 DIMM2B
P2 DIMM2C
P2 DIMM2A
P2 DIMM3C
P2 DIMM1B
P2 DIMM1C
P2 DIMM1A
P1 DIMM3C
P1 DIMM3B
P1 DIMM2C
P1 DIMM2B
P1 DIMM1C
P1 DIMM1B
P1 DIMM3A
P1 DIMM2A
P1 DIMM1A
ALWAYS POPULATE DIMM1 FIRST
CPU2 FAN
FLOPPY
IDE
I-SATA5
I-SATA4
I-SATA3
I-SATA2
I-SATA1
Slot6 PCI-E 2.0 x16
Slot5 PCI-E 2.0 x4 (in x8 Slot)
Slot4 PCI-E 2.0 x8 (in x16 Slot)
Slot3 PCI-E 2.0 x8
Slot2 PCI-E 2.0 x16
LAN2 (Top)
COM1
(Bottom)
I-SATA0
PWR I2C
CPU1
CPU2
USB0/1
LAN1
COM2
Slot1 PCI-E 2.0 x8
DP4
CNF2
BIOS
FAN4
FPCTL
JF1
FAN7
FAN1
CPU
LAN
CTRL
BMC
Audio
CTRL
BMC
Firmware
CTRL
Intel
IOH-36D
Intel
ICH 10R
Intel
(SouthBridge)
X8DAH+
AUDIO
Header
7.1HD
BMC Graphics
Memory
S I/O
1394
CTRL
1394-1 1394-2
IPMI LAN
PHY
Chip
JPL1
J15
J139
JP4
JP5
JUSB5
JUSB4
Rev. 2.01
IOH-36D
(Bottom)
JP9
I-FAN1
I-FAN2
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 sys-
tem, remove the AC power cord and then short JBT1 to clear CMOS.
A
B
A. Clear CMOS
B. Watch Dog Enable
Watch Dog Enable/Disable
Watch Dog (JWD) is a system monitor that
can reboot the system when a software ap-
plication 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 (JWD)
Jumper Setting Denition
Pins 1-2 Reset
(default)
Pins 2-3 NMI
Open Disabled
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