Computer will not use all of the installed ram

PyroTechnics

Reputable
Jun 8, 2016
12
0
4,510
when i go to my system menu, it says i have 8 gb of ram, but only 3.95 gb is usable. i have researched it and tried a few different "solutions".i tried to go to the advanced boot tab in msconfig, and un-check maximum ram. restarted my pc and same issue.i also tried to but my ram in different ram slots and still the same problem, is there anyone that knows anything else i could try to make it work or do i need to order completely new ram sticks.