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Fan Headers
The X7DBT/X7DBT-INF/X7DGT/X7DGT-
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 ni-
tions.
*Note 1: The onboard fan speed is con-
trolled by the CPU die temperature.
*Note 2: The white dot on each fan header
indicates the location of Pin 1.
Serial Port
A serial port connector (COM 2) is located
at JCOM2 on the Backpanel. See the table
on the right for pin defi nitions.
LAN1
SIMS0
LAN2
S I/O
E
PCI-E x8
Fan Header Pin Defi nitions
Pin #
Defi nition
1
PWR (DC
Speed CTRL)
2
Tachometer for
Fan 1,3 or 5
3
Ground
Serial Port Pin Defi nitions
Pin #
Defi nition
1
CD
2
RD
3
TD
4
DTR
5
Ground
FP CTRL
CPU1
CPU2
BIOS
2-17
Chapter 2: Installation
Pin #
Defi nition
4
Ground
5
Tachometer for
Fan 2,4 or 6
6
PWR (DC
Speed CTRL)
(COM2)
Pin #
Defi nition
6
DSR
7
RTS
8
CTS
9
RI
10
NC
A. Fans 12
B. Fan 3/4
C. Fan 5/6
D. Fan 7/8
E. COM 2 Port
A
B
C
D
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