windows 7 64 bit home premium ram 12 gb available only 3.6 usable

e18iffy

Honorable
Nov 9, 2013
2
0
10,510
I checked bios and says 12 i checked msconfig and unchecked maximum memory and i switched the default one with the new one so both slots work i cant seem to get it to work though
 

Dizzll

Honorable
Aug 9, 2013
18
0
10,510
Which mobo do you have? It is possible that you have the ram sticks in the wrong dimm slots. Check you rmobo guide for proper installation locations.