User`s manual

- 28 -
Hardware Installation
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
toconnectitinthecorrectorientation(theblackconnectorwireisthegroundwire).Thespeedcontrol
function requires the use of a fan with fan speed control design.
Pin No. Denition
1 GND
2 Speed Control
3 Sense
4 VCC
DEBUG
PORT
G.QBOFM
1
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 4 5
 S3
BSSS
U
 
1 2 3
4
 
1 2 3 4
 
1 2 3
4
 
1 2 3 4
 __ 3
F_USB3F
SATA Express and SATA3 4/5 connectors can only be used one at a time.
7) SATA_EXPRESS (SATA Express Connector)
The SATA Express connector supports a single SATA Express device.