Chapter 2: Installation
2-23
24Pin PW1
1
5
2
6
S M B
P W
A l a r m
R e s e t
DIMM1
DIMM2
DIMM5
DIMM6
P W R
Fault
SMB Power (I
2
C)
Connector
I
2
C Connector
(J27), located be-
tween the PWR ForceOn Header
and the PWR Fault header, moni-
tors the status of PWR Supply,
Fan and system temperature.
SMB PWR
Pin Definitions (J27)
Pin #
1
2
3
4
5
Definition
Clock
Data
N/A
N/A
N/A
2-6
Jumper Settings
Explanation of
Jumpers
To modify the operation of the
motherboard, jumpers can be
u s e d t o c h o o s e b e t w e e n
o p t i o n a l s e t t i n g s . J u m p e r s
create shorts between two pins
to change the function of the
connector. Pin 1 is identified
w i t h a s q u a r e s o l d e r p a d o n
the printed circuit board. See
the motherboard layout pages
for jumper locations.
N o t e :
O n t w o p i n j u m p e r s ,
"Closed" means the jumper is
o n a n d " O p e n " m e a n s t h e
jumper is off the pins.
Connector
Pins
Jumper
Cap
Setting
3 2 1
3 2 1
Pin 1-2 short
24Pin PW1
1
5
2
6
CO
M
1
3
3
7
7
4
4
8
8
LAN1
LAN
2
VGA
S C S I B
U S B 2 / 3
C H
IPMI
S M B
C P U 1
CPU2
F
a
n
2
2
4
-P
in
P
W
2
2
4
P
in
P
W
2
ID
E
1
ID
E
2
Fan6
Fan5
5
Fan6
Fan1
S M B
P W
A l a r m
R e s e t
DIMM1
DIMM2
DIMM5
DIMM6
DIMM3
DIMM7
DIMM4
DIMM8
MRH-D
MRH-D
MRH-D
MRH-D
PCI-X
SCSI A
L S I
S C S I
Controller
P 6 4 H
ICH4
SIOH
S N C
VRM-top
VRM-top
FP C T L R
R
US
B
0/1
F
a
n
7
G LA N
C T L R
Fan8
S I/O
S
Fa
n
4
Fan4
Fan3
3
3
P W R
Fault
COM2
6
2
5
DIMM5
1
SMB PWR Connec-
tor
