System requires 1.35V Low Voltage SODIMMs. 1.5V memory modules are NOT SUPPORTED.
DDR3L-1600 memory will clock down to run at 1066MHz highest supported speed.
If 4GB is installed under 32-bit Windows OS, the recognized memory may be reduced to 3.5GB or less (depending on system configuration and memory allocation). Maximum configurations require a 64-bit operating system.