Chapter 2: Installation
2-21
PCI-X#1 100MHz ZCR
PCI-X 133 MHz
S
U
P
E
R
P
D
S
M
4
®
Pentium Dural Core CPU
LGA 775
KB/MS
C
O
M
1
GLAN1
F
a
n
5
E7230
(North Bridge)
LAN
CTRL
J P L 1
SCSI
J L1
SATA1
Fan4
Buzzer
J
L
E
D
ID
E
24-Pin ATX PWR
ICH7R
DIMM#1A (Blue)
DIMM#2A (Black)
DIMM#1B (Blue)
DIMM#2B (Black)
WOL
J B T 1
J F 1
(South Bridge)
J31
J28
JPW2
12-pin PWR
J 3
SATA3
F
an
2
Battery
J 9
J
P
A
1
F
a
n
3
JPA2
PCI-X#2 100MHz
S
C
S
I
C
h
a
n
n
e
l
F
P
C
T
R
L
L E 3
SATA0
SATA2
JWOR
J W D
SPKR
(The Green Slot)
USB
J15
V
G
A
JG1
GLAN2
LAN
CTRL
S I/O
COM2
J P L 2
Printer
Floppy
USB 3/4
USB 5/6
Slot1
Slot2
Slot4
PCI-E x4
Slot5
Slot6
PCI-X 133 MHz
BIOS
PXH
J P 5
J P 6
Slot7
LP IPMI
J
P
G
1
Mukilteo
J A 1
LE1
L E 4
JPF
JPW1
F
an
1
A T I
Rage XL
CPU Fan6
W83792
P
W
3
Watch Dog Enable
JWD controls Watch Dog, a system
monitor that takes action when a soft-
ware application hangs. Close Pins
1-2 to reset the system if a program
hangs. Close Pins 2-3 to generate a
non-maskable interrupt for the program
that hangs. (This function requires soft-
ware support.). Watch Dog must also
be enabled in BIOS.
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.
Do not
use the PW_ON connector to clear
CMOS.
B. Clear CMOS
A. Watch Dog Enable
Jumper
Position
Pins 1-2
Pins 2-3
Open
Definition
WD to Reset
WD to NMI
Disabled
Watch Dog
Jumper Settings
B
A
