MSI MICRO ATX BX11 Manual page 52

The JVSB1 jumper is for setting keyboard power. This function
should be set in the BIOS for the keyboard and PS/2 mouse Wake-up
function.
1
3
JVSB1
Note: To be able to use this function, you need a power supply that
provide enough power for this feature.
(750 ma power supply with 5V Stand-by)
1
3
5V Standby
Enable keyboard
power on function
1
3
5V (default)
Disable keyboard
power on function
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