Gigabyte MZBAYAI Manual - Page 21

CPU_FAN/SYS_FAN CPU Fan/System Fan Header, ATX_19V 2 Pin Power Connector

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17/18) CPU_FAN/SYS_FAN (CPU Fan/System Fan Header) The motherboard has one 4-pin CPU fan header, and one 4-pin system fan header. 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_FAN CPU_FAN SYS_FAN CPU_FAN 1 1 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. 19) ATX_19V (2 Pin Power Connector) 1 Pin No. Definition 1 GND 2 +19V 2 - 21 - Hardware Installation

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Hardware Installation
17/18) CPU_FAN/SYS_FAN (CPU Fan/System Fan Header)
The motherboard has one 4-pin CPU fan header, and one 4-pin system fan header. 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.
Pin No.
Definition
1
GND
2
+12V
3
Sense
4
Speed Control
1
1
•
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.
CPU_FAN
CPU_FAN
SYS_FAN
SYS_FAN
19) ATX_19V (2 Pin Power Connector)
Pin No.
Definition
1
GND
2
+19V
1
2