Supermicro SYS-521C-NR User Manual page 65

Front Control Board Signal Reset
Jumper JRU1 is used to configure the signal settings for the Front Control Board (JFP1).
Close pins 1 and 2 to reset the Front Control Board signals for UID use. Close pins 2 and 3
to configure JFP1 signals for reset use. The default setting is on pins 1-2 to reset JFP1 for
power button use. Refer to the table below for jumper settings.
VGA Enable/Disable
JPG1 allows you to enable or disable the VGA port using the onboard graphics controller.
Backplane SGPIO Jumper Settings
The JP1 jumper on the backplane controls the SGPIO signal model. Refer to the table below
for jumper settings.
Front Control Board Signal Reset Jumper (JRU1)
Jumper Settings
Jumper Setting Definition
Pins 1-2 Configure JFP1 Signals for UID (Default)
Pins 2-3 Configure JFP1 Signals for Reset
VGA Enable/Disable
Jumper Settings
Jumper Setting Definition
Pins 1-2 Enabled
Pins 2-3 Disabled
Backplane SGPIO Jumper Settings
Jumper Setting Definition
Pins 1-2 x4 + x4 SAS AOC/RAID
Pins 2-3 x8 Onboard SATA (Default)
65
Chapter 4: Motherboard Connections
JP1