I have 2 separate ram each of 4 gb but blue stack only detect 4gb out of 8 gb, please help.
One other thing that's worth mentioning, sometimes you have to push really quite hard to get RAM to seat properly in the slot. The most common RAM issue in my experience is simply because it wasn't pushed down into the slot hard enough. In most slots you should just push down on the RAM until the latch shuts and you get a bit of click.
what's version window? x86 or x64? how many support Ram on your mainboard?
because one of them die :D you need check .
or i think you need remove or change local of them in mainboard
what's version Window XP? extract RAM and put only one RAM then change it!