Gigabyte GA-6PXSVL Manual - Page 21

CPU Fan/System Fan Headers, PWR_DET1 PMBus connector

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3/4/5/6/7) CPU_FAN1/SYS_FAN1/SYS_FAN2/SYS_FAN3/SYS_FAN4 (CPU Fan/System Fan Headers) The motherboard has a 4-pin CPU fan header (CPU_FAN1), four 4-pin (SYS_FAN1/SYS_FAN2/SYS_ FAN3) system fan headers. Most 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 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. SYS_FAN4 CPU_FAN1 1 1 SYS_FAN2 SYS_FAN3 SYS_FAN1 Pin No. 1 2 3 4 Definition GND +12V Sense Speed Control • Be sure to connect fan cables to the fan headers to prevent your CPU and system from overheating. Overheating may result in damage to the CPU or the system may hang. • These fan headers are not configuration jumper blocks. Do not place a jumper cap on the headers. 8) PWR_DET1 (PMBus connector) 1 Pin No. Definition 1 SMB CLK 2 SMB DATA 5 3 SMB Alert 4 GND 5 3.3V Sense Hardware Installation - 21 -

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Hardware Installation
- 21 -
3/4/5/6/7) CPU_FAN1/SYS_FAN1/SYS_FAN2/SYS_FAN3/SYS_FAN4
(CPU Fan/System Fan Headers)
The motherboard has a 4-pin CPU fan header (CPU_FAN1),
four 4-pin (SYS_FAN1/SYS_FAN2/SYS_
FAN3) system fan headers. Most 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 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 and system from
overheating. Overheating may result in damage to the CPU or the system may hang.
•
These fan headers are not configuration jumper blocks. Do not place a jumper cap on the headers.
Pin No.
Definition
1
GND
2
+12V
3
Sense
4
Speed Control
1
1
SYS_FAN3
SYS_FAN2
SYS_FAN1
8)
PWR_DET1 (PMBus connector)
5
1
Pin No.
Definition
1
SMB CLK
2
SMB DATA
3
SMB Alert
4
GND
5
3.3V Sense
CPU_FAN1
SYS_FAN4