User`s manual

- 27 - Hardware Installation
3/4) CPU_FAN/SYS_FAN1/2/3/4/5/6 (Fan Headers)
All fan headers on this motherboard are 4-pin and support fan speed control function. The fan headers
possess a foolproof insertion design. When connecting a fan cable, be sure to connect it in the correct
orientation (the black connector wire is the ground wire). The speed control function requires the use of
a fan with fan speed control design. For optimum heat dissipation, it is recommended that a system fan
be installed inside the chassis.
1
DIP
1 2 3
CPU_FAN:
SYS_FAN1/2/3/4/5/6:
Pin No. Denition
1 GND
2 +12V
3 Sense
4 Speed Control
Pin No. Denition
1 GND
2 +12V / Speed Control
3 Sense
4 Reserve
• 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congurationjumperblocks. Do not place a jumper cap on the
headers.
PinNo. Denition
1 GND
2 +12V
3 NC
5) 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 connection and
requires a +12V voltage. The black connector wire is the ground wire.
1
1
DIP
1 2 3
CPU_FAN
DEBUG
PORT
G.QBOFM
1
SYS_FAN3/SYS_FAN4
SYS_FAN1/SYS_FAN2
DEBUG
PORT
G.QBOFM
1
DEBUG
PORT
G.QBOFM
1
SYS_FAN5/SYS_FAN6
DEBUG
PORT
G.QBOFM
1