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6) CPU_OPT (Water Cooling CPU Fan Header)
The fan header is 4-pin and possesses a foolproof insertion design. When connecting a fan cable, be sure
toconnectitinthecorrectorientation(theblackconnectorwireisthegroundwire).Thespeedcontrol
function requires the use of a fan with fan speed control design.
Pin No. Denition
1 GND
2 Speed Control
3 Sense
4 VCC
F_USB30
F_U
B_
F_ F_
_
B
BS_
B
SB_
B
_S
S_
_
B
_U
_
B
S
123
123
123
123
1
1
1
1
BSS
S
_S
SSU
1 2 3 4 5
S3
BSSS
U
__ 3
F_USB3F
S _
S _
SF
1
7) LED_CON2 (Heatsink LED Power Connector)
The power connector provides power to the LEDs on the Chipset heatsink.
Pin No. Denition
1 VCC
2 GND
1
8) SATA_EXPRESS (SATA Express Connector)
The SATA Express connector supports a single SATA Express device.
M2_20G and SATA Express connectors can only be used one at a time. The SATA Express
connector becomes unavailable when an M.2 SSD is installed, but the SATA3 4/5 connectors
are still functional.