User manual
24
Power LED Header    Please connect the chassis 
(3-pin PLED1)
    power LED to this header to 
(see p.11 No. 17)
    indicate system power status. 
    The LED is on when the system  
    is operating. The LED keeps 
    blinking in S1 state. The LED is 
    off in S3/S4 state or S5 state 
    (power off).
Chassis Speaker Header    Please connect the chassis 
(4-pin SPEAKER 1)
    speaker to this header.
(see p.11 No. 18)
1
PLED+
PLED+
PLED-
  RESET (Reset Switch): 
Connect to the reset switch on the chassis front panel. Press the reset 
switch to restart the computer if the computer freezes and fails to per-
form a normal restart.
  PLED (System Power LED): 
Connect to the power status indicator on the chassis front panel. The 
LED  is  on  when  the  system  is  operating.  The  LED  keeps  blinking 
when the sys-tem is in S1 sleep state. The LED is off when the system 
is in S3/S4 sleep state or powered off (S5). 
  HDLED (Hard Drive Activity LED): 
Connect to the hard drive activity LED on the chassis front panel. The 
LED is on when the hard drive is reading or writing data.
The  front  panel  design  may  differ  by  chassis. A  front  panel  module 
mainly consists of power switch, reset switch, power LED, hard drive 
activity  LED,  speaker  and  etc.  When  connecting  your  chassis  front 
panel module to this header, make sure the wire assignments and the 
pin assign-ments are matched correctly.
Chassis and Power Fan Connectors  Please connect the fan cables 
(4-pin CHA_FAN1)
    to the fan connectors and 
(see p.11 No. 28)
    match the black wire to the   
    ground pin. CHA_FAN1 fan
(3-pin PWR_FAN1)   
speed can be controlled through
(see p.11 No. 1)   
UEFI or A-Tuning.
GN D
+1 2V
PW R_FAN_SP E ED
GND
+12V
CHA_FAN_SPEED
FAN_SPEED_CONTRO
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