Gigabyte GA-7PESH3 Manual - Page 23

CPU Fan/System Fan Headers, PWR_DET1 PMBus connector

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Page 23 highlights

4) PWR_DET1 (PMBus connector) 1 Pin No. Definition 1 SMB CLK 2 SMB DATA 3 SMB Alert 5 4 GND 5 3.3V Sense 5/6/7/8/9/10) CPU0_FAN/CPU1_FAN/SYS_FAN1/SYS_FAN2/SYS_FAN3/SYS_FAN4 (CPU Fan/System Fan Headers) The motherboard has two 4-pin CPU fan headers, four 4-pin 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_FAN3 SYS_FAN4 1 CPU1_FAN CPU0_FAN 1 Pin No. 1 2 3 4 Definition GND +12V Sense Speed Control SYS_FAN1 SYS_FAN2 • 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. Hardware Installation - 23 -

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Hardware Installation
- 23 -
5/6/7/8/9/10) CPU0_FAN/CPU1_FAN/SYS_FAN1/SYS_FAN2/SYS_FAN3/SYS_FAN4
(CPU Fan/System Fan Headers)
The motherboard has two 4-pin CPU fan headers, four 4-pin 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_FAN1
SYS_FAN4
SYS_FAN2
SYS_FAN3
4) PWR_DET1 (PMBus connector)
5
1
Pin No.
Definition
1
SMB CLK
2
SMB DATA
3
SMB Alert
4
GND
5
3.3V Sense
CPU1_FAN
CPU0_FAN