Gigabyte MD70-HB1 Manual - Page 24

SYS_FAN5, CPU Fan/System Fan Headers, PMBUS PMBus connector

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4) PMBUS (PMBus connector) Pin No. Definition 5 1 PMBus CLK 2 PMBus DATA 3 PMBus Alert 1 4 GND 5 3.3V Sense 5/6/7/8/9/10/11) CPU_FAN0/CPU_FAN1/SYS_FAN1/SYS_FAN2/SYS_FAN3/SYS_FAN4/ SYS_FAN5 (CPU Fan/System Fan Headers) The motherboard has two 4-pin CPU fan headers, and 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. CPU1_FAN CPU0_FAN CPU1_FAN 1 SYS_FAN1 SYS_FAN2 SYS_FAN3 SYS_FAN4 SYS_FAN5 1 Pin No. 1 2 3 4 Definition GND +12V Sense Speed Control SYS_FAN2 SYS_FAN3 SYS_FAN5 SYS_FAN1 SYS_FAN4 CPU0_FAN • 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 - 24 -

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Hardware Installation
- 24 -
5/6/7/8/9/10/11) CPU_FAN0/CPU_FAN1/SYS_FAN1/SYS_FAN2/SYS_FAN3/SYS_FAN4/
SYS_FAN5
(CPU Fan/System Fan Headers)
The motherboard has two 4-pin CPU fan headers, and 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
CPU0_FAN
CPU1_FAN
SYS_FAN1
SYS_FAN3
SYS_FAN2
SYS_FAN4
SYS_FAN5
CPU0_FAN
4) PMBUS (PMBus connector)
5
1
Pin No.
Definition
1
PMBus CLK
2
PMBus DATA
3
PMBus Alert
4
GND
5
3.3V Sense
SYS_FAN3
SYS_FAN1
SYS_FAN4
SYS_FAN2
SYS_FAN5
CPU1_FAN