Gigabyte GA-Z77-DS3H User Manual - Page 23

CPU_FAN/SYS_FAN1/SYS_FAN2/SYS_FAN3 Fan Headers

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3/4) CPU_FAN/SYS_FAN1/SYS_FAN2/SYS_FAN3 (Fan Headers) All fan headers on this motherboard are 4-pin. 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 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. CPU_FAN: Pin No. Definition 1 GND 1 CPU_FAN 2 +12V /Speed Control 3 Sense 4 Speed Control 1 SYS_FAN1 SYS_FAN1: Pin No. Definition 1 GND 2 +12V /Speed Control 3 Sense 4 Reserve 1 SYS_FAN2/SYS_FAN3 SYS_FAN2/SYS_FAN3: Pin No. Definition 1 GND 2 +12V 3 Sense 4 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. - 23 - Hardware Installation

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- 23 -
Hardware Installation
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.
3/4) CPU_FAN/SYS_FAN1/SYS_FAN2/SYS_FAN3 (Fan Headers)
All fan headers on this motherboard are 4-pin. 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 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.
CPU_FAN:
Pin No.
Definition
1
GND
2
+12V /Speed Control
3
Sense
4
Speed Control
SYS_FAN1:
Pin No.
Definition
1
GND
2
+12V /Speed Control
3
Sense
4
Reserve
SYS_FAN2/SYS_FAN3
1
SYS_FAN1
1
CPU_FAN
SYS_FAN2/SYS_FAN3:
Pin No.
Definition
1
GND
2
+12V
3
Sense
4
Speed Control
1