I have 2 4gb sticks 1600mhz in my 2011 early MBP 15" high-end. I added these after-market sticks like a month after purchasing this MacBook Pro. My question is when I look at iStat Pro it shows that I'm only using 4gb of ram and under About this Mac it says I am using both 4gb are active and in use. I ran the process utility and it shows them there but my Mac is just sluggish when opening documents, etc. Any ideas?
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