Question: are ddr3 and ddr3l ram compatible?
Answer: Basically you can use either. DDR3L is a dual voltage capable memory DIMM, which supports operation at both 1.5V and 1.35V. DDR3L is also pin-compatible with DDR3! ... So, in this case the RAM will be running at 1.5 volts as your system does not offer a low voltage option.