QDI WinneX3E Manual page 6

Caution
Be sure to unplug the AC power supply before adding
or removing expansion cards or other system peripher-
als, especially the SDRAM memory, otherwise your
mainboard or the system memory might be seriously
damaged.
The AC power status (ON/OFF) of the system is indicated by
the red LED near the two DIMM sockets. If the LED is on,
adding or removing devices like SDRAM memory is prohib-
ited.
Manual for WinneX 3E