Gigabyte MSH87FI Manual - Page 22

CPU_FAN/SYS_FAN CPU Fan/System Fan Headers, SPKR Speaker Header

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10/11) CPU_FAN/SYS_FAN (CPU Fan/System Fan Headers) The motherboard has one 4-pin CPU fan header (CPU_FAN) and one 4-pin System fan header (SYS_ 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. 1 SYS_FAN CPU_FAN 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. 12) SPKR (Speaker Header) Pin No. Definition 1 Speaker OUT R- 4 1 2 Speaker OUT R+ 3 Speaker OUT L+ 4 Speaker OUT L- - 23 - Hardware Installation

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Hardware Installation
10/11) CPU_FAN/SYS_FAN (CPU Fan/System Fan Headers)
The motherboard has one 4-pin CPU fan header (CPU_FAN) and one 4-pin System fan header (SYS_
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.
•
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
CPU_FAN
SYS_FAN
12) SPKR (Speaker Header)
Pin No.
Definition
1
Speaker OUT R-
2
Speaker OUT R+
3
Speaker OUT L+
4
Speaker OUT L-
1
4