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Supermicro SC747 Chassis User's Manual
*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.
Fan Jumper Settings
This backplane can use up to three fans. To utilize each fan, you must configure
both jumpers
as instructed below.
Socket Settings
Jumper
Description
Jumper Settings
JP18
Connected to the front panel
Buzzer reset*
Press once to disable the buzzer
Press twice to enable the buzzer
Fan Jumper Settings
Jumper
Jumper Setting
Description
JP61
Pins 1-2: Enabled
Pins 2-3: Disabled
FAN#1 enable/disable
JP97
Pins 1-2: Enabled
Pins 2-3: Disabled
FAN#1 selection for MG9072 chip
JP62
Pins 1-2: Enabled
Pins 2-3: Disabled
FAN#2 enable/disable
JP98
Pins 1-2: Enabled
Pins 2-3: Disabled
FAN#2 selection for MG9072 chip
JP63
Pins 1-2: Enabled
Pins 2-3: Disabled
FAN#3 enable/disable
JP99
Pins 1-2: Enabled
Pins 2-3: Disabled
FAN#3 selection for MG9072 chip