HPC-7480 User Manual
22
4.1.7.1
Explanation of Jumpers
To modify the operation of the backplane, jumpers can be used to choose between
optional settings. Jumpers create shorts between two pins to change the function of
the connector. Pin 1 is identified with a square solder pad on the printed circuit board.
*The buzzer sound indicates that a condition requiring immediate attention has
occurred.
The buzzer alarm is triggered by the following conditions:
Hard drive failure
Fan failure
System temperature over 45° Celsius.
Note!
On two pin jumpers, "Closed" means the jumper is on and "Open"
means the jumper is off the pins.
Table 4.5: Jumper Settings
Jumper Jumper
Settings
Note
JP18
Open: Enabled
Closed: Disabled
Buzzer Reset*
JP29
Open: Enabled
Closed: Disabled
Reset MG9072 Chip Reset
Connector
Pins
Jumper
Setting
3
2 1
3 2 1
Summary of Contents for HPC-7480
Page 6: ...HPC 7480 User Manual vi...
Page 9: ...Chapter 1 1 General Information...
Page 12: ...HPC 7480 User Manual 4...
Page 13: ...Chapter 2 2 System Setup...
Page 21: ...Chapter 3 3 Operation...
Page 25: ...Chapter 4 4 SATA SAS Backplane...
Page 39: ...Appendix A A Chassis Screws...
Page 41: ...33 HPC 7480 User Manual Appendix A Chassis Screws...