User`s guide
3-3
Safety Information and Technical Specifi cations
3-3  SATA-M35S Front Jumpers and Pin Defi nitions
JP28
JP18
JP25
Figure 3-2: SATA-M35S Front Jumpers
Jumper Settings
Jumper Jumper Settings Note
JP18
Open (jumper off): Buzzer enabled
Closed (jumper on): Buzzer disabled
Buzzer reset*
JP28
1-2: Fan enabled
2-3: Fan disabled 
Fan jumper
JP25
Open (jumper off): 45ºC
1-2: 50ºC
2-3: 55ºC
Overheat temperature set-
tings. Buzzer activated at 
the temperature indicated.
*The buzzer sound indicates that a condition requiring immediate attention has 
occurred. 
The buzzer alarm is triggered by the following conditions:
Hard drive failure1. 
Fan failure2. 
System temperature over 45º, 50º or 55º Celsius.3. 










