Gigabyte GA-P35-DS3P User Manual page 24

3) NB_FAN (North Bridge Fan Header)
Connect the North Bridge fan cable to this header. The fan header has a foolproof insertion design.
When connecting a fan cable, be sure to connect it in the correct orientation. Most fans are designed
with color-coded power connector wires. A red power connector wire indicates a positive connec-
tion and requires a +12V voltage. The black connector wire is the ground wire.
4/5/6) CPU_FAN / SYS_FAN1 / SYS_FAN2 / PWR_FAN (Fan Headers)
The motherboard has a 4-pin CPU fan header (CPU_FAN), a 4-pin system fan header (SYS_FAN2),
a 3-pin power fan header (PWR_FAN),and a 3-pin system fan header (SYS_FAN1). Each fan
header supplies a +12V power voltage and possesses a foolproof insertion design. When connect-
ing a fan cable, be sure to connect it in the correct orientation. Most fans are designed with color-
coded power connector wires. A red power connector wire indicates a positive connection and
requires a +12V voltage. The black connector wire is the ground wire. The motherboard supports
CPU fan speed control, which requires the use of a CPU fan with fan speed control design. For
optimum heat dissipation, it is recommended that a system fan be installed inside the chassis.
• Be sure to connect fan cables to the fan headers to prevent your CPU, North Bridge and
system from overheating. Overheating may result in damage to the CPU/North Bridge or
the system may hang.
• These fan headers are not configuration jumper blocks. Do not place a jumper cap on the
headers.
GA-P35-DS3P Motherboard
1
1
1
SYS_FAN2
CPU_FAN
1
1
PWR_FAN
SYS_FAN1
- 24 -
Pin No. Definition
1 GND
2 +12V
3 NC
CPU_FAN / SYS_FAN2 :
Pin No. Definition
1 GND
2 +12V / Speed Control
3 Sense
4 Speed Control
PWR_FAN / SYS_FAN1 :
Pin No. Definition
1 GND
2 +12V
3 Sense