8GB DDR4 Installed, only 3.93GB Usable

May 23, 2018
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I have 8 gigs of GeIL Super Luge RGB 2133MHZ DDR4 installed in my Ryzen system. Both sticks work fine, but windows say only 3.93 Gigs of that is usable. How do I fix this? I have tried SysConfig, but that did nothing. Help!

Specs:

AMD Ryzen 3 1200 at 3.1 GHZ
Asus ROG Strix B350-F Motherboard
GeIL Super Luge RGB 2x4GB (8GB Total) DDR4 RAM
EVGA 600W White PSU