![I have 16gb of RAM installed, but it says that only 13.9gb are usable. Can someone explain me why and how to fix it? : r/pcmasterrace I have 16gb of RAM installed, but it says that only 13.9gb are usable. Can someone explain me why and how to fix it? : r/pcmasterrace](https://preview.redd.it/32tbn0gmh9k61.jpg?auto=webp&s=7ee4f3f2081e63b4f76ba89ac0451acf085b884e)
I have 16gb of RAM installed, but it says that only 13.9gb are usable. Can someone explain me why and how to fix it? : r/pcmasterrace
Crucial - DDR4 - kit - 32 GB: 2 x 16 GB - SO-DIMM 260-pin - 3200 MHz / PC4-25600 - unbuffered - CT2K16G4SFRA32A - Laptop Memory - CDW.com
Crucial - DDR4 - module - 16 GB - SO-DIMM 260-pin - 2400 MHz / PC4-19200 - unbuffered - CT16G4SFD824A - Laptop Memory - CDW.com
![How to fix "GB usable" RAM problem under 64-bit Windows (set PCI-E Graphics Card as default in BIOS) - YouTube How to fix "GB usable" RAM problem under 64-bit Windows (set PCI-E Graphics Card as default in BIOS) - YouTube](https://i.ytimg.com/vi/4HbNiCeTU8s/sddefault.jpg)