ram differences ddr4

[mergim151]

has the ddr4 P ram any difference to the ddr4 L ram? and if yes
whats the difference for notebook asus rog G752NT

 

[Aeacus]

DDR4L aka DDR4 Low Voltage is a variation of DDR4 RAM that uses less voltage for operation (1.05V) than normal DDR4 RAM does (1.2V - 1.4V). Those are mostly used in mobile computing (including laptops) to extend the device's battery life.

As far as your notebook goes, it may not produce enough voltage for normal operation of DDR4 RAM and you're left using the DDR4L RAM that is compatible with it.