Gigabyte X299-WU8 - Page 27

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Hardware Installation
4/5) CPU_FAN/SYS_FAN1/SYS_FAN2/SYS_FAN3/SYS_FAN4 (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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. Denition
1 GND
2 Voltage Speed Control
3 Sense
4 PWM Speed Control
SYS_FAN1/SYS_FAN2
DEBUG
PORT
G.QBOFM
1
DEBUG
PORT
G.QBOFM
1
CPU_FAN
DEBUG
PORT
G.QBOFM
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congurationjumperblocks.Donotplaceajumpercapontheheaders.
3) VGA_PW (PCIe Power Connector)
The power connector provide auxiliary power to the onboard PCI Express x16 slots. When two or more
graphics cards are installed, we recommend that you connect the power cable from the power supply to
this connector to ensure system stability.
F_USB30
F_U
B_ 
F_  F_ 

_
B
BS_
B
SB_
B
_S

S_
_
B
_U
_
B


 
S  
 
123
 
123
 
123
 
123
1
1
1
1
BSS
S
_S 
SSU
 
1 2 3  
 S3
BSSS
U
 __ 3
F_USB3F
S  _
1
4
3
6
Pin No. Denition
1 +12V
2 +12V
3 +12V
4 GND
5 GND
6 GND
SYS_FAN3/SYS_FAN4