Chapter 2: Installation
2-17
JPL1
J_VMEM
JL1
LE2
LE1
JBT1
LAN1
LAN2
BIOS
SIMSO IPMI
LAN
CTRL
Battery
LE3
J4
VGA
CTRL
SMB
JPL2
SGPIO
CPLD
Intel 5400
North Bridge
CPU 2
FP CTRL
JWD
CPU 1
FAN1/2
20-Pin PWR
PWSMB
CTRL
InfiniBand
DIMM2B
DIMM2A
DIMM1B
DIMM1A
20-Pin PWR
4-Pin Aux. PWR
S I/O
JPG1
JWOL
Intel ESB2
South Bridge
FAN3/4
JSPK
COM1
SATA2
DIMM4B
FPUSB2/3
BANK4
USB0/1
DIMM4A
DIMM3B
DIMM3A
BANK3
BANK2
BANK1
VGA
SATA3
SATA0
SATA1
PCI-Express x16
FAN5/6
FAN7/8
Infini-
B
and
X7DWT-INF
Fan Headers
The X7DWT/X7DWT-INF has four 6-pin
proprietary fan headers. Each fan header
supports two 3-pin fans. See the table on
the right for pin defi nitions.
Note 1
: The onboard fan speed is controlled
by the CPU die temperature.
Note 2
: The white dot on each fan header
indicates the location of Pin 1.
B
C
E
D
A
A. Fans 12
B. Fan 3/4
C. Fan 5/6
D. Fan 7/8
E. COM 2 Port
Serial Port
A serial port connector (COM 1) is located
on the Backpanel. See the table on the right
for pin defi nitions.
Serial Port
Pin Defi nitions
Pin # Defi nition
Pin # Defi nition
1
CD
6
DSR
2
RD
7
RTS
3
TD
8
CTS
4
DTR
9
RI
5
Ground
10
NC
Fan Header
Pin Defi nitions
Pin # Defi nition
Pin # Defi nition
1
PWR (DC
Speed CTRL)
4
Ground
2
Tachometer for
Fan 1,3 or 5
5
Tachometer for
Fan 2,4 or 6
3
Ground
6
PWR (DC
Speed CTRL)