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SC733 Chassis Manual
3
No.
Jumper
1
JP18
2
JP25
3
JP26
4
JP28
*The buzzer sound indicates that a condition requiring immediate attention has
occurred.
The buzzer alarm is triggered by the following conditions:
1. Hard drive failure
2. Fan failure
3. System temperature over 45º Celsius.
Figure D-1: SATA-733 Backplane
Description
Buzzer Reset*
Overheat Temperature
SATA Drive Activity
Fan Sense
D-2
4
1
2
Setting
Alarm Reset Header
Open: 45ºC
Pins 1-2: 50º C (Default)
Pins 2-3: 55º C
Drive Activity
Pins 1-2: Enable
Pins 2-3: Diable (Default)
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