hi i have 8 gb ram but 2.90 usable in msconfig both box are unchecked , my bios remaping is enable.
specs:
processor: amd fx-8350
mobo: ASUS M5A97 R2.0 AM3+ AMD
Ram: 2x4 Corsair vengeance 1330MHZ
HDD: 2 western , and seagate
EVGA 700W bronze 80 plus
bios version 2010
R9 280X 4 gb ram (It have...