I'm running W7 64bit. I have 8GB of ram. My video card has 2GB of ram. My overclock is 100% stable. On a general day with no games running I use about 35% of my ram. However, when I start a memory intensive program such as BF3 of ME2, memory usage goes up. Once I hit about 57-60% usage, the program crashes due to a low memory error. No idea how to fix this. Anyone have ideas?
There is no such thing is a 100% stable OC. As time goes by and the processor is used, there will be degradation. Period. The question is whether or not the degradation is meaningful.
Let's rule out your OC by reverting all your OCs back to stock (CPU, RAM, and GPU), and seeing if you still get the error. If I had to guess, I'd say that the issue isn't a RAM problem, but rather a VRAM problem.
EDIT: Just to be clear, I'm not suggesting re-locking your GPU. But I'm recommending that you revert the clocks back to stock. If that's too much of a pain, at least revert the CPU and RAM to stock.
I tend to write too much. It's like the opposite of writers block.